Answer: C
Explanation:
Which reaction represents the process of neutralization?
Mg(s) + 2HCl(aq) → MgCl₂(aq) + H₂(g)
HCl(aq) + KOH(aq) → KCl(aq) + H₂O(l)
Pb(NO3)2(aq) +CaCl₂(aq) → Ca(NO3)2(aq)+ PbCl₂(s)
2KCIO3(s)→2KCI(s) + 30₂(g)
Answer:
Explanation:
The correct reaction that represents the process of neutralization is:
HCl(aq) + KOH(aq) → KCl(aq) + H₂O(l)
Neutralization is a chemical reaction between an acid and a base, which results in the formation of water and a salt. In this case, hydrochloric acid (HCl) is the acid, and potassium hydroxide (KOH) is the base. When they react, they form potassium chloride (KCl) and water (H₂O).
Complete the sentence:
The north pole of a magnet____ the north pole of another magnet.
-will attract
-may repel, attract, or not affect
-will not affect
-will repel
the north pole of the magnet will repel the north pole of another magnet
Express solution concentration in terms of molality.
Explanation:
Molality of a solution is the number of moles of solute dissolved in 1 Kg of the solvent. Thus, if one gram molecule of a solute is present in 1 kg of the solvent.
hope this helps you
have a great day :)
"Write the general form of beta decay."
Answer:
In beta minus decay, a neutron decays into a proton, an electron, and an antineutrino: n Æ p + e - +.
A car battery produces electrical energy with the following chemical reaction.
Pb + PbO2 + 2H2SO4 → 2PbSO4 + 2H2O
What is the mole ratio of PbO2 to water?
The mole ratio of PbO2 to water in the given chemical reaction is 1:2.
According to the balanced chemical equation, for every 1 mole of PbO2 (lead dioxide), 2 moles of H2O (water) are produced. This can be seen from the coefficients in the equation, where the stoichiometric ratio is 1:2 between PbO2 and H2O.
The balanced equation represents a redox reaction that occurs within a car battery. In this reaction, lead (Pb) and lead dioxide (PbO2) react with sulfuric acid (H2SO4) to produce lead sulfate (PbSO4) and water (H2O). The mole ratio of reactants and products is determined by the coefficients in the balanced equation.
In this case, the coefficient of PbO2 is 1, indicating that 1 mole of PbO2 is consumed. The coefficient of H2O is 2, indicating that 2 moles of H2O are produced. Therefore, the mole ratio of PbO2 to water is 1:2, meaning that for every mole of PbO2, 2 moles of water are produced as a result of the chemical reaction.
for such more questions on reaction
https://brainly.com/question/25769000
#SPJ8
I need description of the rocks with index fossils
Below brief description of each of these rocks:
Conglomerate: Conglomerate is a type of sedimentary rock that is made up of rounded pebbles that are cemented together. It forms from the accumulation of small rocks and pebbles that are carried and deposited by water. Limestone: Limestone is a type of sedimentary rock that is made up of calcium carbonate. It can form through a variety of processes, including the accumulation of shells and other marine debris, the precipitation of minerals from water, and the alteration of other rocks through chemical reactions.Basalt: Basalt is a type of igneous rock that forms from the solidification of lava. It is typically black or dark-colored, and it is composed of minerals such as plagioclase, pyroxene, and olivine. Basalt is a common rock on the earth's surface, and it is the most abundant type of rock in the ocean floor.Trilobite: Trilobite is not a rock, but rather a type of fossil that can be found in certain rock layers. Trilobites were marine arthropods that lived millions of years ago during the Paleozoic era. What is the rock layer about?Conglomerate: Conglomerate is a type of sedimentary rock that is characterized by its rounded pebbles and the cementing material that holds them together. The pebbles in conglomerate rocks can be made up of a variety of different rock types, and they are typically rounded due to the effects of weathering and erosion.
Therefore, Conglomerate is often found in areas where there is a high amount of water flow, such as along riverbeds or in coastal areas. It can be used for a variety of purposes, including as a building material, as a decorative stone, and in landscaping.
Learn more about Rock Layer from
https://brainly.com/question/23437558
#SPJ1
This atom has two neutral charged subatomic particles and two negatively charged subatomic particles. What is this atom?
Hydrogen
Helium
Oa
Oь
ос
Od
Lithium
Beryllium
Answer: helium is the answer
Which of the following would not be considered matter?
clouds
trees
rain
air
light
Answer:
light
Explanation:
Have a nice day
Answer:
light
Explanation:
Which of the following best predicts how the partial pressures of the reacting species will be affected if a small amount of Arlg) 8. is added to the equilibrium mixture at constant volume? a. PN02 will-decrease and PN204 will increase b. Pwo will increase and PN204 will decrease oth PNo2 and PN204 will decrease. No change will take place.
When an inert gas, such as argon (Ar), is added to a reaction mixture at constant volume, it behaves independently of the chemical reaction occurring. Inert gases do not participate in the reaction or undergo any chemical changes themselves. Instead, they simply occupy space within the container.
Since the addition of argon does not affect the concentrations or partial pressures of the reacting species, it does not cause any changes in the equilibrium position. The reaction will continue to reach and maintain its equilibrium state with the same partial pressures of the reacting species as before the addition of the inert gas.
Therefore, in the given scenario, the partial pressures of the reacting species, such as P(NO2) and P(N2O4), will remain unchanged when a small amount of argon gas is added to the equilibrium mixture at constant volume.
To know more about chemical refer here
https://brainly.com/question/29240183#
#SPJ11
a compound found in crude oil consist of 93.71% C and 6.29% H by mass. The molar mass of the compound is 128g/mol. What is its molecular formula
STEP-BY-STEP EXPLANATION:
What to find? The molecular formula
Given parameters
% by mass of carbon = 93.72%
The molar mass of an unknown material is 78.430 g/mol. What is the mass of half of a mole of the unknown material?
pls help me
Answer:
hoy
Explanation:
Answer:
39.215g
Explanation:
Molae mass means mass in 1 mole.
If 78.430g is in 1 mole
Xg is in 0.5 mole
cross multiply
X x 1 = 78.430 x 0.5
X = 39.215 g
which one is not one of the four most abundant elements in life?
What are atoms? What do we use it for
Answer:
atoms are everything and they are use to create anything and everything
Answer:
Atoms are composed of subatomic particles that are the building blocks of life
what other evidence might you need to consider before reaching a conclusion
Answer: An effective conclusion contains three basic parts: a restatement of the speech's thesis; a review of the main points discussed within the speech; and a concluding device that helps create a lasting image in audiences' minds.
a a reaction orrcurs in a calorimeter that contains 2300g of water at 30c. the reaction releases 9.66 *10^3 j of heat. if the specific heat capacity of water is 4.184 j*g*c what is the final temperature of the water
The final temperature of the water is 33.02°C.
Here's the solution:
Initial temperature of water (T1) = 30°C
Mass of water (m) = 2300g
Specific heat capacity of water (c) = 4.184 J/g°C
Heat released by the reaction (q) = 9.66 * 10^3 J
Final temperature of water (T2) = (T1 + q/mc)
= (30°C + 9.66 * 10^3 J / 2300g * 4.184 J/g°C)
= 33.02°C
The heat released by the reaction is absorbed by the water, causing the temperature of the water to increase.
The final temperature of the water is calculated by adding the heat released by the reaction to the initial temperature of the water and dividing by the mass of the water and the specific heat capacity of water.
Thus, the final temperature of the water is 33.02°C.
To learn more about specific heat capacity :
https://brainly.com/question/29792498
#SPJ11
what does the slope of a distance vs time graph tell you? yes
Answer:
an increase of acceleration or decrease of acceleration
Explanation:
A. All matter is made of atoms.
True or False
Explanation:
yes
matter are divided into
liquid
soild
gas
plasma
and all of them are made up of atom
Water boils at 100°C. What is that temperature on the Kelvin scale? 333 K 213 K 373 K 325 K
Answer:
I can confirm that 100 degrees Celsius is 373 degreed Kelvin
Explanation:
To be exact, 100°C = 373.15°K, but rounding down would then give us 373.
Astronomers have discovered vast differences in stars throught their observations. One theory used to explain these differences is that.
1. the distances between stars are vast
2. stars are at different points in their life cycles
3. earths atmosphere distorts our view of the stars
4. there is to much light pollution on earth to sturdy stars
We can confirm that the most likely reason for astronomers to see differences in the stars they observe is that stars are at different points in their life cycles.
What is the life cycle of a star?Stars are said to have seven phases to their lives, which include them being:
nebulaProtostarMain sequence star.Red giant star.White dwarf.Supernova.Neutron star or black hole.Each of these phases of a star have vastly different characteristics and can explain the differences in the observations made by the astronomers.
Therefore, we can confirm that option 2 is correct in that the differences seen by the astronomers are likely because stars are at different points in their life cycles.
To learn more about stars visit:
https://brainly.com/question/11624159?referrer=searchResults
Define unbalanced forces(giving Brainly)
Answer:
Unbalanced forces are forces whose net amount is not zero.
This can take place when two equal forces are acting in the same direction or opposite direction but with different forces.
Unbalanced forces make some change in the position of the object on which force is exerted.
Answer:
This can take place when two equal forces are acting in the same direction or opposite direction but with different forces.
Unbalanced forces make some change in the position of the object on which force is exerted.
2. Do you think you would have to exercise longer to use the energy that can be released
from three grams of carbohydrate, fat or protein? Why?
Which of the following is a measure of the randomness of a system?
O A. Heat
O B. Energy
O C. Efficiency
O D. Entropy
an amino acid that forms a solution with a ph of 3.0 as it is dissolved in distilled water has a side chain with what functional group?
An amino acid that forms a solution with a ph of 3.0 as it is dissolved in distilled water has a side chain with a carboxyl group.
A carbonyl and hydroxyl group are joined by a carbon atom to form a carboxyl group. The hydroxyl group is made up of oxygen and hydrogen bound together, whereas the carbonyl group is a carbon double-bonded to oxygen (O=H) (OH). The carboxyl functional group, also known as the carboxyl group, is produced when the carbon atom is attached to both the hydroxyl and carbonyl functional groups.
This characteristic enables this functional group to bind to a variety of molecules that are present in typical goods. As a result, a molecule made up of a carbonyl and a hydroxyl group joined by a carbon atom is described as having a carboxyl group.
To learn more about the carboxyl group, visit the link below:
brainly.com/question/12603276
#SPJ4
Directions: Use the words in the word box to complete the following sentences.
acceleration
gravity
counteract
resistance
balanced
force
When the forces acting on an object are _______________ , there is no change in the object's motion.
A _________________ acting on a resting object can cause the object to move.
On Earth, __________________ pulls all objects toward the ground.
When a force acts in the opposite direction of another force, the forces ______________ each other.
More than one force acting on a falling object can reduce its downward ____________________.
Air _____________________ is caused by molecules of air pushing against a moving object.
Answer:
if u answer my today's a pic quatiom I will give u ur any questions
Answer:
balanced
resistance
gravity
counteract
acceleration
select the types for all the isomers of [fe(co)4cl2]+
The types of all isomers of [Fe(CO)4Cl2]+ are geometric and optical isomers.
Geometric isomers are molecules that have the same molecular formula and connectivity of atoms but differ in the spatial arrangement of atoms due to the presence of double bonds or ring structures. Optical isomers, on the other hand, are molecules that have a mirror-image relationship with each other but cannot be superimposed.
In the case of [Fe(CO)4Cl2]+, there are two possible geometric isomers, cis and trans, that differ in the spatial orientation of the chloride ligands with respect to the carbonyl ligands. Additionally, there are two possible optical isomers for each geometric isomer, resulting in a total of four isomers: cis- and trans-[Fe(CO)4Cl2]+, each with two enantiomers.
To learn more about molecules click here: brainly.com/question/1819946
#SPJ11
If the earth's mantle were completely solid,__________ plates could not move around.
Answer:tectonic
Explanation:
Answer:
TECTONIC
Explanation:
If oxygen, which has an electronegativity of 3.5, bonds with hydrogen, which
has an electronegativity of 2.1, the bond between the two atoms will be classified as a polar BLANK
bond.
Answer: covalent bond
Explanation: Yeah that's the answer
A student finds a piece of metal and wants to determine the
specific heat. The mass of the metal is 4.70g. After the
metal absorbed 57.2J of heat, the temperature of the sample
rises 32°C. What is the specific heat?
The metal has a specific heat of 0.390 J/g°C.
What is Specific Heat ?
Specific heat is an important concept in thermodynamics and is used to determine the amount of heat required to raise the temperature of a material, or conversely, the amount of heat that is released when a material cools. Different materials have different specific heats, which means that they require different amounts of heat to change their temperature. For example, water has a very high specific heat, which means that it takes a lot of heat energy to raise its temperature, while metals have much lower specific heats and require much less heat energy to change their temperature.
We can use the formula for the heat absorbed or released by a material:
Q = m * c * ΔT
where Q is the heat absorbed or released, m is the mass of the material, c is the specific heat, and ΔT is the change in temperature.
In this case, the metal absorbs 57.2 J of heat, and the temperature of the sample rises 32°C. The mass of the metal is 4.70 g. When these values are added to the formula, we obtain:
57.2 J = 4.70 g * c * 32°C
Solving for c, we get:
c = 57.2 J / (4.70 g * 32°C)
= 0.390 J/g°C
Therefore, the specific heat of the metal is 0.390 J/g°C.
Learn more about Specific Heat from given link
https://brainly.com/question/27991746
#SPJ1
Predict the ions that form when magnesium(group IIA) and nitrogen (group VA) react:.
Answer: Mg²⁺ & N³⁻
Explanation:
Since Magnesium is in group 2, then it favors losing two electrons forming a cation with a charge of +2 ( Mg²⁺).
Since Nitrogen is in group VA, it favors gaining three electrons forming the anion with charge -3 (N³⁻).
select all the statements that correctly describe the properties of gases.
Gases are much more compressible than liquids or solids, gases have relatively low density.
Mass per unit volume is measured using the density unit. Given that it is an intense property, the size of the item has no bearing on the value of the property. Density Physics-related meaning The mass-to-volume ratio of an object is known as its density in physics. Mass per unit volume is a frequent definition. Chemistry's use of density The density of a substance in chemistry is a measurement of how much mass there is per unit volume. It is a physical characteristic that is intense, which means that the size of the object has no bearing on its value.
Which of the following statements correctly describe the properties of gases? select all that apply:
-gases have high viscosities
-gases are much more compressible than liquids or solids
-gases have relatively low densities
-gases mix with other gases only if their molecules are of the same type
Learn more about density here:
https://brainly.com/question/29775886
#SPJ4