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statuscvo [17]
3 years ago
5

Which of the following is an example of a chemical change?

Chemistry
1 answer:
zhuklara [117]3 years ago
6 0
I believe it would be milk souring.
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Kepler was able to determine that the planets move slowest when they are _____.
kherson [118]
Planets move slower when they are furthest from the sun. But when they are closer they move faster because of the gravitational pull of the Sun.

Hope this helps.


6 0
3 years ago
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Water is amphoteric. If it reacts with a compound that is a stronger acid than itself, water acts as a
kirza4 [7]

Answer:

Water acts as a base in the presence of a strong acid

Explanation:

Water,being an amphoteric compound, can act both as an acid and as a base.

In the presence of an acid , water acts as a base but in the presence of a base, water acts as an acid.

5 0
2 years ago
What is the primary role of the United States Bureau of Counterterrorism?
zubka84 [21]

o advance counterterrorism efforts in other countries

7 0
3 years ago
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Given the balanced equation representing a reaction:
Vladimir79 [104]

Answer:

Option A. Addition

Explanation:

Unsaturated compounds under goes addition reaction to produce saturated compounds..

In the equation given above i.e

H2C=CH2 + F–F —> FCH2CH2F

we can see that the double in H2C=CH2 disappear by the reaction of F–F to produce FCH2CH2F which has no double. This simply indicates that the F–F was added to H2C=CH2. Hence, the reaction is called addition reaction.

4 0
3 years ago
What is the mass of carbon in 500. g of octane?
denis23 [38]

The answer is: the mass of carbon is 420.6 grams.

m(C₈H₁₈) = 500 g; mass of octane.

M(C₈H₁₈) = 114.22 g/mol; molar mass of octane.

n(C₈H₁₈) = m(C₈H₁₈) ÷ M(C₈H₁₈).

n(C₈H₁₈) = 500 g ÷ 114.22 g/mol.

n(C₈H₁₈) = 4.38 mol; amount of octane.

In one molecule of octane, there are eight carbon atoms:

n(C) = 8 · n(C₈H₁₈).

n(C) = 8 · 4.38 mol.

n(C) = 35.02 mol; amount of carbon.

m(C) = 35.02 mol · 12.01 g/mol.

m(C) = 420.6 g; mass of carbone.

5 0
3 years ago
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