Answers
Answer:
when the temperature drops, there is less heat obviously. that gives less of a chance for it to be humid outside. the relative humidity would drop
Explanation:
When the temperature drops and becomes cool, the relative humidity of a given weather condition will drop.
What is relative humidity?Relative humidity is the amount of water vapor present in air expressed as a percentage of the amount needed for saturation at the same temperature.
How the weather would changeWhen the temperature drops and becomes cool, the amount of available heat reduces which causes the relative humidity to drop.
Thus, when the temperature drops and becomes cool, the relative humidity of a given weather condition will drop.
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Related Questions
. A gas has a solubility of 0.028 g/L at a pressure of 3.5 atm. At what pressure would its solubility be at 0.2 g/L?
Answers
Answer:
To find the pressure at which the solubility of the gas would be 0.2 g/L, we can use the concept of Henry's Law. Henry's Law states that the solubility of a gas in a liquid is directly proportional to the pressure of the gas above the liquid.
The equation for Henry's Law is:
S = k * P
Where:
S is the solubility of the gas in the liquid (in g/L)
k is the Henry's Law constant (which depends on the specific gas and liquid)
P is the partial pressure of the gas above the liquid (in atm)
We can set up a proportion to find the unknown pressure (P2) when the solubility (S2) is 0.2 g/L:
S1 / P1 = S2 / P2
Substituting the given values:
0.028 g/L / 3.5 atm = 0.2 g/L / P2
Now we can solve for P2:
P2 = (0.2 g/L * 3.5 atm) / 0.028 g/L
P2 = 24.5 atm
Therefore, at a pressure of 24.5 atm, the solubility of the gas would be 0.2 g/L.
A piece of red litmus and a piece of blue litmus are dipped into a solution of NaOH. What are the final colors of the papers? Group of answer choicesThe red stays red and the blue stays blueThe red litmus turns blue and the blue litmus turns redBoth are redBoth are blue
Answers
Answer:
Both are blue.
Explanation:
Remember that litmus indicator solution turns red in acidic solutions and blue in alkaline (basic) solutions.
In this case, NaOH is a base (specifically, a strong base). So if we dip the red litmus, it will turn blue and the blue litmus would stay blue, so the answer is that both are blue.
Assess It! Question #2: Which is not true about the Law of Conservation of Mass? A: Nothing is created B: The same number of atoms are in both the products and reactants C: New atoms are created when a new substance is formed D: Nothing is destroyed
Answers
Option C) New atoms are created when a new substance is formed is not true about the Law of Conservation of Mass.
The Law of Conservation of Mass states that "Mass can neither be created nor be destroyed". This means that the mass of an object will remain the same, regardless of the changes that occur to its form or composition. The law is a fundamental principle of physics and chemistry and is used to calculate the amount of matter that is present in a given sample.
The same number of atoms are in both the products and reactants as the mass of the reaction is conserved.
Since the same number of atoms are present in both reactants and products, then no new atoms or compounds are created in the process.
Hence, the correct option is C).
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Select the correct statement a) particles of two different gases always move at the same average speed when they have the same kinetic energy b) N2 has a higher average speed of effusion than H2 c) H2 has a higher average speed of effusion than O2 d) the gas with the most molar mass has the greatest average kinetic energy
Answers
Answer:
12
Explanation:
The statements correct about the speed of gas particles have been A and B.
The movement of the gas particles has been influenced by the factors such as temperature and molar mass.
The speed of the gas has been inversely proportional to the molar mass. The molecules with higher molar mass will have lesser speed.
The statements that have been based on the speed of gas molecules are:
The speed of molecules has been based on the molar mass. The particles with the same kinetic energy at the same temperature will be moving at the same speed.Thus statement A is correct.
The molar mass of nitrogen has been 28 g/mol, and that of oxygen has been 32 g/mol. Thus, the rate of diffusion of nitrogen has been faster than oxygen because of the lower molecular mass.Thus statement B is correct.
The molar mass of Hydrogen has been lower than the molar mass of oxygen. Thereby the speed of effusion of gas has been inversely proportional to the square root of the molar mass. Thus with the hydrogen, the molar mass is lesser thus, the speed has been lower than the oxygen.Thus statement C is incorrect.
The kinetic energy of the gas has been based on the molar mass. The higher mass has resulted in lower kinetic energy.Thus statement D is incorrect.
The statements correct about the speed of gas particles have been A and B.
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9)
Which solution will have the highest concentration of solute particles?
A) 0.50 M NaCl
B) 1,00 M CaCl2
C) 2.00 M sodium ions
D) 2.50 M C6H1206
Answers
Answer: The answer is B) 1.00 M CaCl2
Explanation: I just did it on usatestprep and it said it was correct .
Why does nitrogen not show allotropy?
Answers
Answer:
Nitrogen does not show allotropy because of its small size and high electronegativity. The single N-N bond is weaker than P-P bond because of high inter electronic repulsions among non-bonding electrons due to the small bond distance. Hence it does not show allotropy.
Answer:
The nitrogen atom has short inter-bond distance, hence highly electronegative in terms of magnitude. This creates no relation in energy varieties hence no allotropes formed.
Nitrogen atom is also very small.
Making a Lis changing something to improve your work. A) scenario
B) revision
C) entry event
D) wish list
Answers
Calculate the pH for the following concentration: [H3O+] = 2.19 x 10-5 M
Answers
pH = -log([H3O+])
[H3O+] = 2.19 x 10^-5 M
pH = -log(2.19 x 10^-5)
pH = -log(2.19) - log(10^-5)
pH = -log(2.19) + 5
pH = 5 - log(2.19)
Approximating log(2.19) to 2 decimal places, we have:
pH = 5 - log(2.19) = 5 - 0.345 = 4.655
So the pH of the solution is approximately 4.655
I want to know how to solve this question by step by step.
Question: What is the pH value of 500ml of an aqueous solution of 0.005 mol HCl ?
Answers
The pH value of 500 mL of an aqueous solution of 0.005 mole HCl is 2
How do I determine the pH of the solution?We'll begin our calculations by obtaining the molarity of the solution. Details below:
Volume of solution = 500 mL = 500 / 1000 = 0.50 LMole of HCl = 0.005 moleMolarity = ?Molarity = mole / volume
Molarity = 0.005 / 0.50
Molarity = 0.01 M
Next, we shall obtain the concentration of the hydrogen ion, H⁺ in the solution. Details below:
HCl(aq) <=> H⁺(aq) + Cl¯(aq)
From the balanced equation above,
1 mole of HCl contains 1 mole of H⁺
Therefore,
0.01 M HCl will also contain 0.01 M H⁺
Thus, the concentration of the hydrogen ion, H⁺ in the solution is 0.01 M
Finally, we shall determine the pH of the solution. Details below:
Concentration of hydrogen ion [H⁺] = 0.01 MpH of solution =?pH = -Log H⁺
pH = -Log 0.01
pH = 2
Thus, we can conclude that the pH of the solution is 2
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A piece of string is found to be 35.9 meters long how long is the string in inches?
Answers
Answer:
1413.386
Explanation:
Guysss how to explain nuclear chemistry? And define nuclear chemistry ?
Answers
Answer:
How do amoeba respire.
Define Diffusion.
A doctor is trying to diagnose a patient with dry skin. Which of the following resources would be the most helpfu
ОООО
a magazine ad about soft skin
a growth chart
online articles about dry skin
medical books
Answers
4)develop a testable hypothesis
5)State the independent variable
6)State the dependent variable
Answers
The Robitussin contains a cough suppressant to stop coughing, an expectorant to break up mucus and phlegm, a decongestant to clear nasal congestion, and other ingredients.
4) Develop a testable hypothesis: A survey can be used to look into this Claim. This survey should be for 7 to 8 days.
Procedure:
Collect 20 to 30 people with a history of cough for this investigation. Once the patient has been enrolled in the trial for 7 days, they should start receiving the cough medicine.At the screening, the intensity, frequency, discomfort in the chest, quantity, and type of sputum should be noted towards the end of the seventh and fourth days of treatment.The patient should record the intensity and frequency of their coughing on a visual analogue scale that should be divided into ten equal sections, each measuring 1 cm.The patient should rate their symptoms' seriousness using this scale both during the screening and four days after taking the cough treatment.Scores should be kept on these days, and any score drops should be carefully examined to determine the cough medicine's efficiency.It would be wise to research the taste, colour, odour, and consistency of cough syrup as well as the clinical and haematological safety characteristics. On the fourth day, the patient and the doctor should conduct a comprehensive evaluation.5) In this experiment, independent variable is consumption of cough syrup because this will manipulate the condition of cough in patient.
6) In this experiment, Dependent variable is Cough which depend on the consumption of cough syrup on daily basis.
This is how we can investigate the effectiveness of cough syrup.
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what type of energy does an MRI use to show things happening inside the human body such as your heart beating?
*Hint my teacher didn’t say that radiation is not part of this answer, so think of something else*
Answers
Answer:
MRI uses a powerful magnetic field, radio waves and a computer to produce detailed pictures of internal body structures. MRI does not use radiation (x-rays). Detailed MR images allow doctors to examine the body and detect disease.
Explanation:
which of the following is not a form of kinetic energy? a. chemival energy, b. electrical energy, c. light energy, d. mechanical energy
Answers
Answer:
d
Explanation:
i looked it up
Mechanical energy is not a form of kinetic energy. Hence, option D is correct.
What is kinetic energy?Kinetic energy is a form of energy that an object or a particle has by reason of its motion.
Mechanical energy is the sum of the kinetic energy, or energy of motion, and the potential energy, or energy stored in a system by reason of the position of its parts.
Hence, option D is correct.
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Hello I need help please
Answers
Answer:
The concentration of an acid in a solution can be determined by making an acid-base titration. To do this, a known volume of the acid solution is gradually added alkali solution whose concentration is known, until a neutral pH is reached.
Explanation:
calculate the wave length associated with an electron travelling a 40% velocity of light
Answers
2.5 A° is wave length associated with an electron travelling a 40% velocity of light.
40% velocity of light=40/100×3×10^8
40% velocity of light=1.2×10^8 m/s
\(\lambda=c/v\)
\(\lambda\)=3×10^8/1.2×10^8 m/s=2.5 A°
Since the relationship between wave frequency and wavelength is inverse, gamma rays have extremely tiny wavelengths that are only a small portion of the size of atoms, whereas other wavelengths can extend as far as the universe. No of the medium they are passing through, electromagnetic radiation's wavelengths are typically expressed in terms of the vacuum wavelength, but this isn't always stated explicitly.
The wavelength of electromagnetic radiation affects how it behaves. Speed of light = wavelength x frequency Energy = Planck's constant x frequency Wave number = 1/wavelength in cm. The wavelengths of different parts of the electromagnetic spectrum are displayed together with a rough approximation of the wavelength size.
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What might have been the advantages and disadvantages of just having
experienced polar explorers at the catlin arctic survey.
Answers
While having experienced polar explorers at the Catlin Arctic Survey would have been beneficial in many ways, it would also have been important for them to work collaboratively with the rest of the team.
Advantages:
Experienced polar explorers would have had a wealth of knowledge and skills, such as how to travel over the ice, how to set up camp, and how to handle emergencies.
Experienced polar explorers would have been able to make informed decisions about the best routes to take and the most efficient ways to travel. This could have helped to save time and energy.
Disadvantages:
Experienced polar explorers may have been set in their ways and resistant to new ideas. This could have hindered the team's ability to adapt to changing circumstances and make the most of new opportunities.
Experienced polar explorers may have been overconfident and taken risks that the rest of the team was not comfortable with. This could have put everyone's safety at risk.
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Compare and contrast the terms primary standard and secondary standard
Answers
Reagents are primary standards that can be used in chemical processes. These substances are frequently employed to figure out the concentration of a solution that can interact chemically with the primary standard but whose concentration is unknown. The term "secondary standard solution" refers to a solution developed expressly for a given analysis.
What is Primary and secondary standard solution?A reagent with a high degree of purity is called a primary standard solution. It has a highly accurate concentration that mirrors the solute's molar concentration. Because of its purity, it may be used to accurately determine the mass to volume ratio.
The term "secondary standard solution" refers to a solution developed expressly for a given analysis. A secondary standard is a substance whose active agent content was discovered by comparison with a primary standard. This means that it is frequently bench marked against a major standard.
A primary standard solution is one that has a high purity and is less reactive. Secondary standards are not as pure as primary standards and are more chemically reactive.A primary standard solution is sterile. A secondary standard solution isn't very pure.A major standard solution, on the other hand, is not as reactive. A secondary standard solution is more reactive in comparison.A hygroscopic primary standard solution does not exist. A secondary standard solution is hygroscopic in various ways.A solution of primary standards used to standardize secondary standards and other reagents. For particular analytical chemistry studies, a secondary standard solution is utilized.To know more about concentration refer to:
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A scientist wants to determine the best light wavelength for growing plants. He grows plants in four test groups as shown in the table below. What, if anything, was wrong with the experiment? A. He should only grow one plant in each group.
B. He should only change the wavelength of light for each group.
C. He should add a control group with a CO2 level of zero ppm and a light intensity of zero percent.
D. There is nothing wrong with the experiment.
Answers
Answer:
where is the table..............
Answer:
B
Explanation:
I just took the test.
out of the following elements which has the 3s orbital furthest from the nucleus? bromine selenium arsenic germanium all the same
Answers
Bromine, selenium, arsenic, germanium has 4 shells around the nucleus.
What is the periodic table?The chemical elements are arranged in rows and columns in the periodic table, which is also known as the periodic table of the (chemical) elements.
It is commonly regarded as an icon of chemistry and is utilized extensively in physics, chemistry, and other sciences.
The periodic law, which asserts properties of chemical elements display a roughly periodic dependency on their atomic numbers, is graphically expressed in this way.
Four blocks, or roughly rectangular sections, make up the table. Periods and groups are the names of the table's rows and columns, respectively.
The chemical properties of elements in the same group on the periodic table are similar. The periodic table shows trends, with the proportion of non-metallic elements rising from left to right over time.
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a gas has an initial volume of 3,480 mL and an initial temperature of - 70.0 C. what must be the temperature of the gas in kelvin if its volume is reduced to 2,450 mL
Answers
The temperature of the gas in Kelvin, after its volume is reduced to 2,450 mL, is approximately 143.27 K.
To determine the temperature of the gas in Kelvin after its volume is reduced, we can use the combined gas law, which relates the initial and final conditions of pressure, volume, and temperature for a given amount of gas.
The combined gas law equation is:
(P₁ * V₁) / T₁ = (P₂ * V₂) / T₂
Where P₁ and P₂ are the initial and final pressures, V₁ and V₂ are the initial and final volumes, T₁ is the initial temperature in Kelvin, and T₂ is the final temperature in Kelvin.
Given that the initial volume V₁ is 3,480 mL, the initial temperature T₁ is -70.0 °C (which needs to be converted to Kelvin), and the final volume V₂ is 2,450 mL, we can substitute these values into the equation.
To convert -70.0 °C to Kelvin, we add 273.15 to it, resulting in T₁ = 203.15 K.
Now we can solve for T₂:
(T₂ * V₁) / T₁ = V₂
T₂ = (V₂ * T₁) / V₁ = (2,450 mL * 203.15 K) / 3,480 mL
Simplifying the equation, we find:
T₂ ≈ 143.27 K
Therefore, the temperature of the gas in Kelvin, after its volume is reduced to 2,450 mL, is approximately 143.27 K.
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Draw the structure of phosphatidylserine and discuss its components
Answers
Phosphatidylserine is a type of phospholipid that is mainly found in cell membranes. Its structure is made up of two fatty acid chains, a phosphate group, a serine molecule, and a glycerol molecule.
The fatty acid chains are hydrophobic, meaning they repel water, while the phosphate group and serine molecule are hydrophilic, meaning they attract water.
The glycerol molecule acts as a bridge that connects the two fatty acid chains to the phosphate group and serine molecule.
The structure of phosphatidylserine is important for its function in the cell membrane.
Because of the hydrophobic and hydrophilic components of its structure, phosphatidylserine is able to form a lipid bilayer, which is a barrier that separates the inside of the cell from the outside environment.
The hydrophilic heads of the phosphatidylserine molecules face outward and interact with water, while the hydrophobic tails face inward and repel water.
Phosphatidylserine also plays a role in cell signaling and apoptosis, which is programmed cell death.
It acts as a signaling molecule by binding to proteins that are involved in cellular pathways.
In addition, phosphatidylserine is translocated to the outer leaflet of the cell membrane during apoptosis, which signals to immune cells that the cell is ready to be removed.
In conclusion, the structure of phosphatidylserine is made up of two fatty acid chains, a phosphate group, a serine molecule, and a glycerol molecule. Its hydrophobic and hydrophilic components allow it to form a lipid bilayer in cell membranes, and it also plays a role in cell signaling and apoptosis.
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Which object has particles with the most kinetic energy?
A. A swimmer sitting on a diving board at the pool.
B. A roller Coaster rolling down a steep track.
C. A pear falling from the top branche of a tree.
D. A charged battery sitting in the kitchen drawer.
Answers
Answer:
b
Explanation:
because it is moving so it has kinetic energy
How many moles of oxygen (02) are required to produce 40 liters of water (H20) if there is excess hydrogen (H2)?
Answers
According to the above-balanced reaction, 2 moles of hydrogen and 1 mol of oxygen combine to form 2 moles of water.
How much water is created when 2h2 O2 is combined with 2h2o?As long as there is one mole of O2, 2 H2 + O2 2 H2O produces the same amount of water as H2. Hence, if you start wit 3 mole of H2 and 1.5 moles with O2, you will end up with 3 mole of H2O.
12 mole of H2O are created when extra H2 reacts with how many of O2?Response and justification 6 moles more oxygen gas must be produced in order to make 12 moles of water. This is due to the fact that water and hydrogen mix according to the equation for balance: O2 (g) + 2H2 (g) = 2H2O (g) 2 H2 (g) with O2 (g) results in 2 H2 O (g).
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Automobile air bags use the decomposition of sodium azide as their sources of gas for rapid inflation, represented in the reaction below. What mass (in grams) of NaN4is required to provide 40.0 L of N2 at 25°C and 763 torr?
Answers
Answer:
The answer is 95 degree celcius
Please help me thanks so much?!?.:;)...I’ll mark you.:;)))
Answers
Answer:
physical
Explanation:
Ph of a 0.00150 M HNO3 solution
Answers
The pH of a 0.00150 M HNO3 solution is 2.82
1. If 3.2 moles of MgCl, are dissolved in 1.3 liters of water, what is the molarity of the solution?
Answers
The molarity of the solution if 3.2 moles of MgCl, are dissolved in 1.3 liters of water is 2.46 M.
How to calculate molarity?The molarity of a solution is the concentration of a substance in solution, expressed as the number of moles of solute per litre of solution.
The molarity of a solution can be calculated by dividing the number of moles in the substance by its volume as follows:
molarity = no of moles ÷ volume
According to this question, 3.2 moles of MgCl, are dissolved in 1.3 liters of water. The molarity is as follows:
Molarity = 3.2mol ÷ 1.3L
Molarity = 2.46 M
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prop-1-yne + 2HBr/H2O2 = A;
A + 2H2O = B;
B + K2CO3(aq) = C;
C + heat = D;
D + HBr = E.
find the compounds A, B, C, D and E
Answers
Based on the given reactions, the compounds are as follows:
A: The specific product formed from the reaction between prop-1-yne and either 2HBr or H2O2.
B: The product formed when compound A reacts with 2H2O.
C: The product formed when compound B reacts with K2CO3(aq).
D: The product formed from the heat-induced reaction of compound C.
E: The product formed when compound D reacts with HBr.
Based on the given reactions, let's analyze the compounds involved:
Reaction 1: prop-1-yne + 2HBr/H2O2 = A
The reactant prop-1-yne reacts with either 2HBr or H2O2 to form compound A. The specific product formed will depend on the reaction conditions.
Reaction 2: A + 2H2O = B
Compound A reacts with 2H2O (water) to form compound B.
Reaction 3: B + K2CO3(aq) = C
Compound B reacts with K2CO3(aq) (potassium carbonate dissolved in water) to form compound C.
Reaction 4: C + heat = D
Compound C undergoes a heat-induced reaction to form compound D.
Reaction 5: D + HBr = E
Compound D reacts with HBr (hydrobromic acid) to form compound E.
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