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Drupady [299]
3 years ago
13

Giving brainly for correct answer! :)

Chemistry
2 answers:
Gre4nikov [31]3 years ago
7 0

Answer:

Mass is the amount of matter in an object

aliya0001 [1]3 years ago
3 0

Answer:

Mass

Explanation:

matter is weighed by the mass of an object

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Ksju [112]

The sea level would rise by some 50 meters.

Explanation:

If the earth's temperature increases by 3 degrees the north and south pole would experience the ice melt at high speed.

The life will get difficult on the plains.

The extinction of some species will happen.

The sea level would rise by 50 meters. The increased sea level will cause depletion of habitat from plants and animals.

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8 0
3 years ago
Which of the following is usually done last in the scientific method of investigation?
Kitty [74]
The answer is C because you must do all the other things first to get to the that’s part hope that helps
8 0
3 years ago
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1. If you have 25% radioactive parent atoms in a mineral crystal, and 75% daughter atoms, how many half-lives have passed?
Andreyy89
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5 0
3 years ago
A substance made of one or more atoms of a single type is a/an
Mkey [24]
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3 years ago
In going from room temperature 25° to 35 the rate of a reaction doubles calculate the activation energy for the reaction
Pepsi [2]

Answer:

52.9 KJmol-1

Explanation:

From;

log(k2/k1) = Ea/2.303 * R (1/T1 - 1/T2)

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T2= 35°C + 273 = 308 K

R= gas constant = 8.314 JK-1mol-1

Substituting values;

log 2 = Ea/2.303 * 8.314 (1/298 - 1/308)

Ea = 52.9 KJmol-1

4 0
3 years ago
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