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3 years ago

According to the collision theory, what happens in a collision without sufficient energy or correct orientation

Chemistry

2 answers:

Sergeeva-Olga [200]3 years ago

7 0

There won't be a substantial change or effect if the collision does not meet the requirement. Hope this helps!

ohaa [14]3 years ago

3 0

Hi!

In collision theory, for a chemical reaction to occur - there must be sufficient energy to break down chemical bonds.

We call this the activation energy, as it's the energy needed to activate a chemical reaction!

Hopefully, this helps! =)

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Explain examples of a physical and chemical change of matter

monitta

HEY DEAR..

PHYSICAL CHANGE

Those Changes in which no new substances are formed are called physical changes. it is a temporary changes which can be reversed easily to form the original substance.

Example:- Melting of ice , Making a solution, Glowing of an electric bulb , freezing of water etc.

CHEMICAL CHANGE

Those changes in which new substances are formed are called chemical changes. it means it is permanent changes which are usually irreversible.

Example:- Burning of charcoal, fuels and cutting of trees, even digestion of food is in chemical change.

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3 years ago

Who discovered sodium?

Free_Kalibri [48]

Humphry Davy First discovered sodium

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2 years ago

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Which statement about atoms is correct

lesya [120]

Answer:Protons are positively charged is the correct statement about an atom

I've also corrected the other statements

Atoms contain protons and neutrons in their nucleus

Neutrons posses no charge and are neutral

The nucleon number is the total number of protons and neutrons in a nucleus

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2 years ago

What term expresses the ratio of moles of reactants and products according to the coefficients in the balanced chemical equation

bogdanovich [222]

Answer:

A) mole ratio

Explanation:

A mole ratio, also known as a mole-to-mole ratio, is the ratio between the amounts in moles of one reactant/product to the moles of the other reactant/product. This ratio is determined considering the coefficients in a balanced chemical equation. This ratio is used in chemical problems as a conversion factor between the compounds involved in the reaction.

I hope you find this information useful and interesting! Good luck!

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2 years ago

How many molecules are in 165 g of carbon dioxide?

devlian [24]

The molar mass of CO2 is 44 grams per mole.

165 grams / 44 grams per mole of CO2 = 3.75 moles CO2

Using Avogadro’s law where 1 mole of substance equals 6.023 x 10^23 molecules

3.75 moles CO2 (6.023 x 10^23 molecules /mole) = 2.26 x 10^24 molecules CO2

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2 years ago

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