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Arisa [49]
3 years ago
15

Select all the correct answers.

Chemistry
1 answer:
Lelu [443]3 years ago
3 0

Answer: A. The farther a planet is from the Sun, the longer its orbital period is, and D. Planets with greater mass tend to have more moons.

Explanation: trust

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Write the name of the product formed in the following synthesis reaction. <br> potassium + fluorine
balandron [24]

Answer:

potassium and fluorine both react and form potassium fluoride.

Explanation:

Synthesis reaction:

It is the reaction in which two or more simple substance react to give one or more complex product.

General reaction:

A + B → AB

For example in given potassium and fluorine reaction both react and form potassium fluoride.

Chemical reaction:

K + F₂ → KF

Balanced chemical reaction:

2K + F₂ → 2KF

The oxidation state of potassium is +1 while the oxidation state of fluorine is -1. That's why one atom of potassium combine with one atom fluorine and form potassium fluoride.

6 0
3 years ago
What will cause the ocean level to rise
Grace [21]
The gravitational pull of the moon
4 0
3 years ago
1. The hydrogenation of ethene gas at 298 K shows a decrease in disorder (AS-120.7 J/mol-K) during an exothermic reaction ( Delt
Anna71 [15]
K shows a decrease in disorder (AS = -120.7 J/(mol-K)) during an exothermic reaction (AH' = -136.9 kJ/mol). Determine whether the reaction is spontaneous or ...
8 0
2 years ago
A block of iron has a mass of 826 g. What is the volume of the block of iron whose density at 25°C is 7.9 ?
omeli [17]

Answer:

104.56cm³

Explanation:

Mass=826g

Density =7.9g/cm³

Volume =Mass /Density

Volume =826/7.9

Volume =104.56cm³

4 0
3 years ago
18. A substance has a definite volume
givi [52]

Answer:

change from a gas to aliquid

Explanation:

because gases expand when heated

8 0
4 years ago
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