CHEMISTRY HIGH SCHOOL

Two pieces of silk have an electric charge after being rubbed on a piece of amber. What will happen when the two silk pieces are brought close together?A.They will repel one another.
B. They will attract one another.
C. They will transfer their electrons from one to the other.
D. They will not affect one another.

Answers

Answer 1
Answer: When the two silk pieces are brought close together they will repel one another. The correct choice is A. 
Answer 2
Answer:

Answer:

They will repel on another.

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The bicycle is said to be the most energy-efficient means of transportation. Where does the energy that drives it come from?

Answers

The energy that drives the bicycle comes
from the food that the rider eats.
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Answers

Chemicals secreted by glands which regulate tissues or organs are called hormones. Endocrine glands are responsible for regulating body activities. Endocrine glands release chemicals that are called hormones which help the body to function properly. the endocrine system regulate many internal processes.

Answer:

Hormones

hope i helped!

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Answers

The correct answer is answer choice B, 2. Calcium is in Column 2, meaning that it has 2 electrons in its outermost energy level. These two electrons must be lost for it to form an ionic bond with another element and become stable.

Questions like these can be easily answered if you have a periodic table on hand. Elements in Column 1 need to lose 1 electron to form ionic bonds, elements in Column 2 need to lose 2, and so on. Keep in mind, however, that elements in the center of the table are more likely to form metallic or covalent bonds, and elements in Columns 16 and 17 need to gain 2 and 1 electrons, respectively.

Half equation reaction for 2KI+Cl2-I2+2KCl

Answers

Answer:

Explanation:

2kc

During nuclear fission and fusion, what is matter that seems to disappear actually converted into?mass
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volume
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Answers

Hi! The answer is Energy. I hope this helped, Goodluck :)
my best guess is energy

1. Plants use energy from sunlight, water, and carbon dioxide to produce 10 pointssugar. Which structure is found only in plant cells and helps plants capture
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Answers

The answer is c chloroplast

Answer:

Chloroplast

Explanation:
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