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Musya8 [376]
3 years ago
9

Can anyone explain how to do this?

Chemistry
1 answer:
Roman55 [17]3 years ago
3 0

Answer:

hello u need help? 9i0

Explanation:

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Name three common
nlexa [21]

Answer:

PH value greater than 7=baking soda

PH value less than 7=vinegar

PH value equal to 7=pure water

hope it helps.

6 0
3 years ago
Manganese atom has 30 neutrons and atomic number 25
marysya [2.9K]

Answer:

the most common oxidation no.of manganese is +2 +3 +4 +6 +7

7 0
3 years ago
Read 2 more answers
How many unpaired electrons does calcium have? You may need to draw the orbital filling diagram for the last sublevel that conta
beks73 [17]

Answer:

0

Explanation:

Ca has 20 electrons

6 0
3 years ago
If a man has a mass of 83 kilograms on Earth, what will the force of gravity on his body be on the moon?
VladimirAG [237]
The answer is (A.) 135.6 N

————

Here is the formula you will need to answer the question.

Formula:
Force(N) = Mass(kg) x Acceleration(m/s²)
or... F(N) = m(kg) x a(m/s²)

————

We need to be certain of the information presented. The problem says the man has a "Mass" of 83 kilograms on Earth. If a man has a Mass of 83 kilograms on Earth, he has a mass of 83 kilograms everywhere. The mass for this problem (even on the moon) is 83.

Mass(kg): 83

————

To find the acceleration of object on other planets, moons, ect, you'll need to search the internet or ask a teacher. There are ways to calculate this, but the problem didn't supply the necessary information to do so.

Acceleration: 1.625 m/s²

————

Now just plug the information into the formula.

F(N) = m(kg) x a(m/s²)

N = 83 x 1.625
N= 135.875

When considering that there could be a slighty more accurate number for acceleration, it can be concluded that the best answer is (A.)

3 0
4 years ago
A covalent chemical bond is one in which:_____.a) outer-shell electrons of one atom are transferred to the inner electron shells
Aleks04 [339]

Answer:

A.outer-shell electrons of one atom are transferred to the inner electron shells of another atom.

Explanation:

In covalent chemical bond, outer shell share pair of electrons to fill both atoms outer shell. Covalent bond can be polar and non-polar. Hydrogen and carbon bonding is example of non-polar bonds; while hydrogen bonding with chlorine is polar covalent bond example

4 0
4 years ago
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