Answers
Answer:
the cheta
Explanation:
kinetic means movement
Related Questions
Give the orbital notation for a neutral atom of titanium
Answers
Answer:
Explanation:
A neutral titanium atom will have 22 electrons. Therefore, its electron configuration will be 1s2 2s2 2p6 3s2 3p6 4s2 3d2.
Predict whether or not the substances in the table will sublime at STP. Base your predictions only on the type of force holding the solid together.
Answers
The states of matter of the materials;
1) Dispersion forces - Yes
2) Hydrogen bonding - No
3) Ionic - No
4) Dispersion forces - No
5) Dispersion forces - Yes
6) Ionic - No
7) Hydrogen bonding - No
What is the sublimation?
Sublimation is a physical process in which a substance transitions directly from its solid phase to its gaseous phase without passing through the intermediate liquid phase. In sublimation, the solid substance is heated, and the resulting gas molecules escape from the solid lattice structure without the need for melting.
One common example of sublimation is the process of dry ice. Dry ice is solid carbon dioxide (CO2) that sublimes at a temperature of -78.5 degrees Celsius (-109.3 degrees Fahrenheit). When dry ice is exposed to room temperature, it transitions directly from a solid to a gas, producing a fog-like effect.
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the beta-2 adrenergic receptor is a membrane-bound protein that regulates several cellular processes, including the synthesis and breakdown of glycogen. the receptor binds specifically to the hormone epinephrine. the binding of epinephrine to the beta-2 adrenergic receptor triggers a signal transduction cascade that controls glycogen synthesis and breakdown in the cell. a simplified model of the signal transduction cascade is represented in figure 1.
Answers
Inactivation of the beta-2 adrenergic receptor will most likely result in an increase in the cell's rate of glycogen production.
According to Figure 1, the stimulation of glycogen breakdown and inhibition of glycogen synthesis result from the activation of beta-2-adrenergic receptors. Because glycogen synthesis is no longer hindered, the immediate result of the deactivation of beta-2-adrenergic receptors is an increase in the rate of glycogen synthesis in cells. Because glycogen phosphorylase may have been deactivated, the breakdown of glycogen in cells is no longer encouraged.
This multiple-choice query is:
A. Cyclic AMPAMP concentrations within cells will rise.
B. Protein kinase A's enzymatic activity will rise.
C. Glycogen phosphorylase will become more active.
D. The cell's rate of synthesising glycogen will quicken.
The correct option is D.
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A cube of butter weights 0260lb and has a voluse of 1303mI. Express the density in grams per minhider to three significant figures. Part C A gom heys a mass of 600 g. When the gem is placed in a grafuased cylinder containing a o00 Express the density in grams per millititer to three significant figures.
Answers
3 g/mL is the density in grams per millititer to three significant figures.
To express the density of a cube of butter in grams per milliliter, we need to convert the weight from pounds to grams and the volume from cubic inches to milliliters.
1 pound is approximately equal to 453.592 grams, so the weight of the cube of butter in grams would be:
0.260 lb * 453.592 g/lb = 117.81992 g (rounded to three significant figures as 118 g)
1 cubic inch is equal to approximately 16.387 milliliters, so the volume of the cube of butter in milliliters would be:
\(1303 cubic inches * 16.387 mL/in^3 = 21,365.861 mL\) (rounded to three significant figures as 21,400 mL)
Therefore, the density of the cube of butter would be:
Density = Mass / Volume
= 118 g / 21,400 mL
= 0.00551 g/mL (rounded to three significant figures as 0.005 g/mL)
For the gem, we already have the mass as 600 g and the volume as 200 mL.
Therefore, the density of the gem would be:
Density = Mass / Volume
= 600 g / 200 mL
= 3 g/mL (rounded to three significant figures)
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A solute that contains polar molecules will dissolve in a solvent that contains
Answers
The solute is the substance added to the solution. The polar molecule of solute will dissolve in a polar solvent to make a solution.
What is polarity?Polarity is the positive and the negative ionic charges present in the molecule. The positively charged molecule is polar and will dissolve in the solvent because of the property of polarity.
In polarity, it is said that like molecules dissolve in like solvent, and hence the polar molecule of the solute will dissolve in the polar solvent. Like the ionic polar solute will dissolve in a polar water solvent.
Therefore, polar solutes will dissolve in a polar solvent.
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Air with less than 19.5% oxygen cannot support human life. How many moles of oxygen would the caisson if the percent of oxygen in the air dropped to 19.4%.
Answers
PLEASE ANSWER
A train travels at an average speed of 25 miles per hour. How long does it take the train to travel 2000 miles
Answers
Answer:
80 hours. 2,000 ÷ 25 = 80
Which statements about β turns are correct? Their purpose is to reverse the direction of the polypeptide chain. There are two types, I and II, which differ mainly in the conformation about the i+1 and i+2 residue amide bond. They typically contain large, hydrophobic residues. Their conformation is held in place through H bonds.
Answers
Answer:
The correct answer is - 1, 2, and 4 statements.
Explanation:
Beta and gamma turns are common plots or turns in proteins and contain intra-turn hydrogen bonds. This hydrogen bond is present between CO of residue i and NH of residue i+3 that holds the confirmation in beta turns.
Beta turns, assist the protein to get their globularity, as the aim of beta turns is to reverse the direction of the polypeptide. The two main of beta turns are type-I and type-Il. and their minor images are type-I and type-Il.
Thus, the correct answer is - 1, 2, and 4 statements.
What is the mass, in grams, of 1.75 x 1020 molecules of caffeine, C8H10N4O2?
Answers
H: 10 atoms x atomic mass of hydrogen (1.01 g/mol) = 10.10 g/mol
N: 4 atoms x atomic mass of nitrogen (14.01 g/mol) = 56.04 g/mol
O: 2 atoms x atomic mass of oxygen (16.00 g/mol) = 32.00 g/mol
Adding these values together, we get:
96.08 g/mol + 10.10 g/mol + 56.04 g/mol + 32.00 g/mol = 194.22 g/mol
Therefore, the molecular mass of caffeine is approximately 194.22 g/mol.
To find the mass of 1.75 x 10^20 molecules of caffeine, we can use the following equation:
Mass = (Number of molecules) x (Molecular mass)
Mass = (1.75 x 10^20) x (194.22 g/mol)
Calculating the result:
Mass ≈ 3.40 x 10^22 g
Therefore, the mass of 1.75 x 10^20 molecules of caffeine is approximately 3.40 x 10^22 grams.
The specific heat capacity of a pure substance can be found by dividing the heat needed to change the temperature of a sample of the substance by the mass of the sample and by the change in temperature. The heat capacity of a certain substance has been measured to be 2.76J·g°C. Suppose 466.g of the substance are heated until the temperature of the sample has changed by 39.4°C. Write an equation that will let you calculate the heat that was needed for this temperature change. Your equation should contain only symbols.
Answers
Answer:
See below
Explanation:
ΔQ = m c T ΔQ = heat required(J) m = mass (g) T = C° temp change
c = heat capacity in J/g-C
1. According to the equation, what mass of hydrogen fluoride is necessary to produce 2.3 g of sodium fluoride?
HF + NaNO3 -> HNO3 + NaF
Answers
Answer:
1.096g
Explanation:
You must know the atomic mass of Hydrogen, Fluorine, and Sodium before you can start:
Hydrogen: 1.008g/mol
Fluorine: 18.99g/mol
Sodium: 22.98g/mol
Next, find the composition percentage of NaF
22.98 + 18.99 = 41.97
Fluorine is 18.99/41.97 =45.25%
Sodium is 100-45.25 = 54.75%
Ultimately we want to know about HF so find how much F is in 2.3g: 2.3 * 0.4525 = 1.041g
Find comp. percentage of HF
18.99+1.008 = 19.998; H/total F/total
Hydrogen 5.041%
Fluorine 94.959%
Laws of conservation of say we have 1.041g of fluorine in our HF. We know 1.041 is 94.959% of the mass of HF so do some simple math to find the remaining: 1.041/0.94959 = 1.096g
Help me please 25 points
Answers
-23 is the final answer beacuse bigger negavtives
Bbbhjhnhbdexvvgvhvhb Gn ghjjhh
Answers
How long would it take to convert 100. 0 grams of solid sodium at 20. 0°C to sodium vapor at 1000. 0°C if the heating rate at a pressure of one atm is 8. 0 kJ?min–1? The melting point of sodium is 97. 8°C; its boiling point is 883°C; its molar enthalpy of fusion is 2. 60 kJ?mol–1; its molar enthalpy of vaporization is 97. 4 kJ?mol–1; and the heat capacities of solid, liquid, and gaseous sodium are 28. 2 J?mol–1?K–1, 30. 8 J?mol–1?K–1, and 20. 8 J?mol–1?K–1, respectively
Answers
To convert 100.0 grams of solid sodium at 20.0°C to sodium vapor at 1000.0°C, the heating rate at a pressure of one atmosphere must be 8.0 kJ/min–1.
First, calculate the amount of moles of sodium, which is 3.99. The heat required for melting and vaporization can be calculated as follows:
Heat for melting = 3.99 moles × 2.60 kJ/mol = 10.37 kJHeat for vaporization = 3.99 moles × 97.4 kJ/mol = 389.06 kJThen, calculate the total heat required to raise the temperature from 20.0°C to 97.8°C and from 97.8°C to 1000.0°C.
Heat for temperature change from 20.0° C to 97.8° C = 3.99 moles × (30.8 J/mol/K × 77.8 K) = 11960.99 JHeat for temperature change from 97.8° C to 1000.0° C = 3.99 moles × (20.8 J/mol/K × 902.2 K) = 81553.66 JFinally, calculate the total heat required to convert 100.0 grams of solid sodium at 20.0°C to sodium vapor at 1000.0°C:
Total Heat = 10.37 kJ + 389.06 kJ + 11960.99 J + 81553.66 J = 91914.08 J
Therefore, it would take 91914.08 J of heat energy to convert 100.0 grams of solid sodium at 20.0° C to sodium vapor at 1000.0°C if the heating rate at a pressure of one atmosphere is 8.0 kJ/min–1.
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How much solid NaCH3CO2 * 3H2O must be added to 0.300 L of a 0.50-M acetic acid solution to give a buffer with a pH of 5.00? (Hint: Assume a negligible change in volume as the solid is added.)
Answers
32.23 g of solid NaCH3CO2 x 3H2O must be added to 0.300 L of a 0.50-M acetic acid solution to create a buffer with a pH of 5.00.
To calculate how much solid NaCH3CO2 x 3H2O must be added to the acetic acid solution to create a buffer with a pH of 5.00, we can use the Henderson-Hasselbalch equation:
pH = pKa + log([CH3CO2⁻]/[HAc])
where pH is the desired pH of the buffer, pKa is the dissociation constant of acetic acid (4.76), [CH3CO2⁻] is the concentration of the acetate ion, and [HAc] is the concentration of acetic acid.
At a pH of 5.00, we can determine the concentration of [CH3CO2⁻]/[HAc] using the Henderson-Hasselbalch equation:
5.00 = 4.76 + log([CH3CO2⁻]/[HAc])
0.24 = log([CH3CO2⁻]/[HAc])
Antilogging both sides:
[CH3CO2⁻]/[HAc] = 1.58
We know that the total volume of the buffer solution is 0.300 L, and that the concentration of acetic acid is 0.50 M. Using the equation for molarity:
Moles of solute/volume of solution = Molarity
we can calculate the number of moles of acetic acid in the solution:
0.50 M = moles of acetic acid / 0.300 L
moles of acetic acid = 0.15
Since we want the concentration of [CH3CO2⁻]/[HAc] to be 1.58, we need to add enough solid NaCH3CO2 x 3H2O to provide the additional acetate ion. The molar mass of NaCH3CO2 x 3H2O is 136 g/mol, so we can calculate the mass of solid needed:
moles of acetate ion needed = moles of acetic acid x [CH3CO2⁻]/[HAc]
moles of acetate ion needed = 0.15 x 1.58
moles of acetate ion needed = 0.237
mass of NaCH3CO2 x 3H2O = moles of NaCH3CO2 x 3H2O x molar mass
mass of NaCH3CO2 x 3H2O = 0.237 x 136 g/mol
mass of NaCH3CO2 x 3H2O = 32.23 g
To make a buffer with a pH of 5.00, 32.23 g of solid NaCH3CO2 x 3H2O must be added to 0.300 L of a 0.50-M acetic acid solution.
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What is the answer: 20°C to °F?
Answers
Answer:
68 degrees fahrenheit
Explanation:
heelp pls
Which element has the lowest electronegativity?
nitrogen (N)
lithium (Li)
bromine (Br)
potassium (K)
Answers
Answer: Potassium (K) has the lowest electronegativity among the given elements.
Explanation:
Electronegativity is a measure of an element's ability to attract electrons towards itself when it is involved in a chemical bond with another element. Potassium has the lowest electronegativity because it has only one valence electron that is located far from the nucleus, making it easier to lose that electron and become a positively charged ion. In contrast, nitrogen, lithium, and bromine have higher electronegativities because they have more valence electrons or the valence electrons are closer to the nucleus, making it more difficult to remove or share electrons.
The element with the lowest electronegativity among the given options is potassium (K). Potassium has an electronegativity value of approximately 0.82 on the Pauling scale, which is the lowest value among the four elements listed. In contrast, nitrogen (N) has an electronegativity of approximately 3.04, bromine (Br) has an electronegativity of approximately 2.96, and lithium (Li) has an electronegativity of approximately 0.98. Electronegativity is a measure of an atom's ability to attract electrons towards itself in a chemical bond. The lower the electronegativity value, the less the atom attracts electrons towards itself.
Brainliest?
if malonyl-coa is synthesized from 14co2 (carbon 14 isotope) and unlabeled acetyl-coa, and the labeled malonate is then used for fatty acid synthesis, the final product (fatty acid) will have radioactive carbon in:
Answers
The use of labeled malonyl-CoA in fatty acid synthesis can result in the incorporation of radioactive carbon into the final product, providing a powerful tool for studying lipid metabolism.
If malonyl-CoA is synthesized from 14C-labeled CO2 and unlabeled acetyl-CoA, and the resulting labeled malonyl-CoA is used in fatty acid synthesis, the final product (fatty acid) will contain radioactive carbon. This is because malonyl-CoA is an intermediate in the biosynthesis of fatty acids, and the carbon atoms derived from the labeled malonyl-CoA will be incorporated into the growing fatty acid chain.
During fatty acid synthesis, malonyl-CoA undergoes a series of condensation reactions with acetyl-CoA to form a growing fatty acid chain. Each round of condensation involves the transfer of two carbon units from malonyl-CoA to the growing chain.
The incorporation of labeled carbon into fatty acids can be detected using techniques such as autoradiography or liquid scintillation counting. These techniques allow researchers to track the fate of labeled molecules in biological systems and can provide valuable insights into metabolic pathways and cellular processes.
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Scenario 2: The strength of magnet 1 is weaker than the strength of magnet 2. for example:
Answers
If the strength of magnet 1 is weaker than the strength of magnet 2, then the overall kinetic energy in the system would increase. This is because the weaker magnet would exert less force on the magnetic object, causing it to accelerate more and gain more kinetic energy as it approaches the stronger magnet.
In the above scenario, the magnetic force between two magnets causes a magnetic object to accelerate, which in turn creates kinetic energy.
When the magnetic object is placed between the two magnets, the stronger magnet exerts a stronger magnetic force on the object, causing it to accelerate towards the stronger magnet.
At the same time, the weaker magnet also exerts a magnetic force on the object, albeit a weaker one. As a result, the object experiences a net force towards the stronger magnet, which causes it to accelerate and gain kinetic energy as it moves closer to the magnet with higher magnetic strength.
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which of the following explains why salt water is considered a mixture
Answers
Answer:
sal5 water = kaka
Explanation:
because i need points ty man
What is δs° for the reaction so2(s) no2(g) → so3(g) no(g)? substance s°(j/k • mol) so2(g) 248.5 so3(g) 256.2 no(g) 210.6 no2(g) 240.5
Answers
The value of ΔS° for reaction is - 22.2 J/K.mol
\(SO_{2}(s)+NO_{2} (g)\) → \(SO_{3}(g)+NO(g)\)
Calculation,
Given value of S°(J/K.mol) for
\(SO_{2}(s)\) = 248.5
\(NO_{2} (g)\) = 240.5
\(NO(g)\) = 210.6
\(SO_{3}(g)\) = 256.2
Formula used:
ΔS° (Reaction) = ∑S°(Product) - ∑S°(Reactant)
ΔS° = (256.2 + 210.6 ) - ( 248.5 + 240.5) = 466.8 - 489 = - 22.2 J/K.mol
The change in stander entropy of reaction is - 22.2 J/K.mol. The negative sign indicates the that entropy of reaction is decreases when reactant converted into product.
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Research some metal ores and what the extracted metals are used for?
(besides copper)
Answers
Lithium is used to build computer batteries, whereas iron is used in industry to construct buildings and bridges.
What are metals?In engineering, metals are characterized to have electrical conductivity and other properties (e.g., ductility, reflectivity, etc).
For example, Lithium can be defined as soft metal (alkali metal) that is suitable to store electrical energy.
In conclusion, Lithium is used to build computer batteries, whereas iron is used in industry to construct buildings and bridges.
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Non-ferrous metal is NOT hardenable by heat treatment; it must
gain strength through a process such as tempering. Is this
statement TRUE or FALSE?
Group of answer choices
True
False
Answers
The statement is FALSE. Non-ferrous metals can be hardened by heat treatment, although the mechanisms and processes involved may differ from ferrous metals.
Heat treatment techniques such as precipitation hardening can be used to increase the strength of non-ferrous metals. Non-ferrous metals are metals or alloys that do not include iron (or iron allotropes, such as ferrite, etc.) in significant quantities. Non-ferrous metals are employed because they have desired qualities like reduced weight (for example, aluminium), greater conductivity (for example, copper), non-magnetic characteristics, or corrosion resistance (for example, zinc), even though they are often more expensive than ferrous metals. In the iron and steel sectors, several non-ferrous materials are also employed. Bauxite, for instance, is used as a flux in blast furnaces, whereas wolframite, pyrolusite, and chromite are utilised to create ferrous alloys.
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What is the measure of the energy in any EM wace
Answers
The measure of the energy in any EM waves is electron volts (eV).
What is Electromagnetic waves (EM waves)?The Electromagnetic waves (EM waves) are the waves that are made up of both electric and magnetic fields that oscillates around a field.
The electromagnetic wave can be measured in electron volts (eV) because is can be described in terms of its energy—in units of measure.
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True or false; A solution always contains only one solvent.
Answers
A solution is defined as a mixture of two or more substances, usually, a solute and a solvent, and the difference between these two are in quantity, solute represents the smallest amount and solvent will represent the highest amount, and while you can have more than one solute, you can only have one solvent for a solution. Therefore the statement is true
how many moles Mg(OH)2 has in 0,05 kg from substance?
Answers
According to the data 0.855 moles Mg(OH)₂ has in 0.05 kg from substance.
How do you convert moles to mass?Add the number of moles to the substance's molecular weight. The molecular weight of a substance determines how many grams there are in a mole and provides a conversion factor from moles to grams for that specific substance. 1 mol H2O x 18.02 g/mol = 18.02 g, or 18.02 grams, is the mass of one mole of water.
Briefing:1 kg = 1000g
We can convert 0.05 kg to grams
0.05 * 1000 = 50 grams
Then Find moles of Mg(OH)₂
1 grams Mg(OH)₂ is equal to 0.0171 mole
Then 50 grams Mg(OH)₂ is :
50 * 0.0171 = 0.855 moles
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HELP ASAP
The diagram below shows some subatomic particles.
What is the particle that is labeled with a question mark (?) in the diagram?
Answers
Answer:
The Answer Is Quarks
Explanation:
Its mad up of Quarks
i hope this helps
pls make me brilliant or something
The particle that is labeled with a question mark (?) in the diagram is Quarks
Quarks are elementary particles and fundamental constituents of matter. They are considered the smallest known particles that make up protons and neutrons, which are the building blocks of atomic nuclei. Quarks are classified as fermions, which means they follow the rules of quantum mechanics and obey the Pauli exclusion principle.
There are six known types, or flavors, of quarks: up (u), down (d), charm (c), strange (s), top (t), and bottom (b). Each quark flavor has a unique set of properties, including mass, electric charge, and the way they interact with other particles through the strong nuclear force. The up and down quarks are the lightest and most common, while the top quark is the heaviest.
One notable property of quarks is that they possess a fractional electric charge. The up quark has a charge of +2/3 (e/3), while the down quark has a charge of -1/3 (-e/3), where "e" represents the elementary charge carried by an electron. Quarks are never found in isolation due to the confinement principle, which means they are always bound together in composite particles called hadrons.
Quarks interact through the strong nuclear force, which is mediated by particles called gluons. This force binds quarks together to form protons and neutrons, and also governs the interactions within atomic nuclei.
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consider the function f(x) = ( 0, x < 0 c 4 x 2 , x ≥ 0 for what value of c will f(x) be a probability density function?
Answers
The only value of c that would make the function f(x) a probability density function is c = 0.
How to find c for probability density?The function f(x) cannot be a probability density function if c is any non-zero value. A probability density function must satisfy two conditions: it must be non-negative for all values of x, and its integral over all possible values of x must be equal to 1.
However, in this case, the function f(x) is equal to 0 for all values of x less than 0, so its integral over all possible values of x is equal to 0.
Therefore, the only value of c that would make f(x) a probability density function is c = 0, in which case the function is equal to 0 for all values of x, and its integral over all possible values of x is also equal to 0.
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How is water important in our life?
(show in numbers the minerals that we need and is found in water)
Answers
Answer:
Water plays many important roles in the body including,flushing waste from the body,regulating body temperature,transportation of nutrients and is necessary for digestion.No wonder it is considered "essential"!.Plain water is the best choice for hydrating the body.
Explanation:
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as the elements in period two on the periodic table are considered in succession from left to right, there is a decrease in atomic radius with an increase in atomic number. This may best be explained by the fact that
Answers
Answer:
The nuclear effective charge increases
Explanation:
With a greater nuclear effective charge, electrons are being attracted with a greater force to the nucleus, meaning that atom will reduces its atomic radius