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Andrew [12]
3 years ago
9

How does a catalyst increase the rate of a reaction?

Chemistry
1 answer:
Norma-Jean [14]3 years ago
6 0

Answer:

C) It provides a lower activation energy for the reaction is the correct answer.

Explanation:

  • A catalyst increases the rate of the chemical reaction by lowering the activation energy for a reaction.
  • Catalyst is used to increase the reaction rate, it remains unchanged in the chemical reaction and it does not change the equilibrium constant.
  • Activation energy is a minimum amount of energy required to initiate the reaction.

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According to Boyle’s law, when the pressure of a gas increases at constant temperature, its volume
TEA [102]

Answer:

reduces

Explanation:

According to Boyle's law, when the pressure of a gas increases at constant temperature the volume reduces.

Boyle's law states that "the volume of fixed mass of a gas is inversely proportional to the change in pressure if the temperature is constant".

  • It suggests that at constant temperature, if pressure increases, temperature reduces.

Mathematically, it is expressed as;

     P1 V1  = P2 V2

P and V are pressures

1 and 2 are initial and finals state.

3 0
3 years ago
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When a chemical reaction take place new atom or new element are formed true or false
Andreas93 [3]

In a chemical change, the atoms in the reactants rearrange themselves and bond together differently to form one or more new products with different characteristics than the reactants. When a new substance is formed, the change is called a chemical change. A chemical reaction is a mechanism that takes place when two or more molecules interact to produce new products. A reaction between two atoms or ions or molecules may take place and a new bond is formed and no atom is destroyed or created, but reactants form a new substance.

True ^_^

3 0
3 years ago
Ten interesting facts about radium and polonium
suter [353]
1. They were both discovered by Marie and Pierre Curie.
2. They can both poison you.
3. Radium is named after the Latin word for "Ray"
4. Polonium is named after Poland, the country in which Marie Curie was born.
5. Marie and Pierre Curie obtained radium and polonium from pitchblende, a material containing uranium.
6. Polonium was discovered in 1898.
7. Radium was discovered in 1898 as well.
8. Radium and polonium are both elements on the periodic table.
9. Polonium is also called "radium F".
10. Both radium and polonium must be handled very carefully with good equipment, or their toxic fumes could spread and possibly be fatal.

Hope this helped! :)
3 0
4 years ago
Hi kay my account got deleted this is my new one
jek_recluse [69]

Answer:

hUh

Explanation:

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3 years ago
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Burning a piece of wood in fire can be best described as a
castortr0y [4]
As a chemical change
8 0
3 years ago
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