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just olya [345]
2 years ago
11

A reaction is 50% complete in 2 hours and 75% complete in 4 hours.

Chemistry
1 answer:
Diano4ka-milaya [45]2 years ago
5 0

Answer:

the half life of reaction is 2 hours which is consist half life of consist in the first order reaction has the order reaction is one

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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
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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.

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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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Fill in the blank <br> ______ is a way to describe matter with numbers and units.
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Lady_Fox [76]

Answer:

1,300,000,000,000

Explanation:

1.3 x 10^12

We want to convert this from scientific notation.

Tip: in scientific notation the exponent tells you how many place you move the decimal point over. If the exponent is negative you move the decimal point to the left. Ex. For, 4.1 x 10^-8, we would move the decimal point over 8 times to the left to get .00000041. When the exponent is positive we move over to the right. Ex. For, 7.6 x 10^7 we would move the decimal point over 7 times to the right to get 76,000,000

So to convert 1.3 x 10^12 we simply move over the decimal point over 12 times to the right.

1.3 x 10^12 ------> 1,300,000,000,000

Our answer is 1,300,000,000,000

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!

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