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3 years ago

What is the collision theory

Chemistry

1 answer:

algol133 years ago

4 0

Answer:

Collision theory states that when suitable particles of the reactant hit each other, only a certain fraction of the collisions cause any noticeable or significant chemical change; these successful changes are called successful collisions.

Explanation:

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When explaining chemical reactions to a friend, Brianna models a reaction by taking several colors of modeling clay and making a

Ludmilka [50]

Answer:

True

Explanation:

A synthesis reaction is one that involves the combination of more than one reactants to form a single product. This is directly opposite to a decomposition reaction where a complex compound is broken down into various products.

Examples of synthesis reaction are;

1. The combination of sodium with chlorine to form sodium chloride.

2. The combination of hydrogen and oxygen to form water

so explaining what Brianna did, the models of clay are the reactants coming together to form a single product which is the sculpture.

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3 years ago

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What is a chromosome

erica [24]

A chromosome is a tightly coiled X of genetic material that has genes on it.
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3 years ago

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In this equation, stands for carbon, stands for nitrogen, and stands for oxygen. Which equation represents this reaction?

Marat540 [252]

In order to answer this question we must look at the image which I have attached.

The red atoms refer to oxygen atoms, the grey atoms are carbon atoms and the blue atoms are nitrogen. Therefore, the equation from the image suggests:

2CO + 2NO → 2CO₂ + N₂

Looking closely at the options given, several of them could be eliminated immediately since they are not balanced equations like B, C and E. Therefore, only A or D could be the answers.

The answer is option <span>D.) 2CO + 2NO → 2CO2 + N2
</span>

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4 years ago

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Which statement describes what occurs as two atoms of bromine combine to become a molecule of bromine?

Liono4ka [1.6K]

Br + Br -> Br2 (covalent bond)

<span>forming of bonds releases energy, since the Br's are at a lower energy state as Br2

Answer is #3</span>

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4 years ago

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Which of the following equations does not demonstrate the law of conservation of mass?

enot [183]

The third option does not obey the law of conservation of mass.

Option 3.

Explanation:

The law of conservation of mass states that the sum of the masses of reactants should be equal to the sum of the masses of the products.

For example, if we consider the first option to verify if it obeys law of conservation of mass or not, 2 Na + Cl₂ → 2 NaCl

So one way to verify it is to find the mass of Na, then multiply it with 2, and then add this with 2 times of mass of chlorine. So this sum should be equal to the 2 times mass of NaCl. But it is somewhat lengthy.

Another way to easily determine this is to check if the elements are present equally in both sides. Such as, in reactant side and product side 2 atoms of Na is present . Similarly, the Cl atoms are also present in equal number in both reactant and product side. Thus this obeyed the law of conservation of mass.

Like this, if we see the second option, there also 1 atom of Na is present in reactant and product side and 2 molecules of H is present in reactant and product side, 1 oxygen is present in reactant and product side and 1 Cl is present in reactant and product side. So it also obeys the law of conservation of mass.

But in the third option, P₄ + 5 O₂→ 2 P₄O₁₀, here, there is 4 atoms of P in reactant side but in product side there is (4*2) = 8 atoms of P. Similarly, the number of atoms of oxygen in reactants and product side is also not same. So the third option does not obey the law of conservation of mass.

The fourth option also obeys the law of conservation of mass as the number of atoms of each element is same in both the product and reactant side.

Thus, the third option does not obey the law of conservation of mass.

5 0

4 years ago