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asambeis [7]
3 years ago
14

if a continental polar air mass is moving across the United States , what will likely happen to the regions of the country that

it is moving over ?
Chemistry
1 answer:
krek1111 [17]3 years ago
5 0

Answer:

the same thing that happens to United states will happen to other regions

Explanation:

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The allotropic form of a non – metal is a good conductor of electricity. Name the nonmetal.
SashulF [63]

Answer:

carbon with graphite as the allotrope

8 0
2 years ago
The weights of all elements are always compared to oxygen.
marishachu [46]

Answer:

The weights of all elements are always compared to the Carbon-12.

Explanation:

The weights of all elements are always compared to the Carbon-12 because the mass of carbon is 12 which is the exactly the sum of protons and neutrons.  

Oxygen was also considered the standard for some time but later this stander was rejected because in natural O¹⁷ and O¹⁸ were also present and this create the two different atomic mass tables.

AMU:

Atomic mass unit is define as the 1/12 the mass of an atom of carbon-12.

C12 has six neutron and six protons in the nucleus.

This unit is used to express the masses of atoms. We know that masses of atoms are very small and we do not have any such type of balance that can measure very small quantity. So that is way we use this scale to measure small quantity. For example, according to this scale

relative atomic mass of hydrogen is 1.008 amu

relative atomic mass of oxygen is 15.999 amu

relative atomic mass of uranium is 238.0289 amu

relative atomic mass of chlorine is 35.453 amu

7 0
3 years ago
The weight of a table as measured by a student is 20 kg.The
miskamm [114]
(20/23) times 100 is 87%

now the answer asks for percentage ERROR

100-87 =13

so answer is C
7 0
2 years ago
Read 2 more answers
Someone plz help me
a_sh-v [17]

Answer:

A experimental investigation

3 0
2 years ago
A chemist adds 36.0 g of sodium chloride to 200 g of water at STP and all of the sodium chloride dissolves. What is the solute i
erica [24]

Answer:

The answer is the Sodium Chloride.

Explanation:

A solute is the minor component in a solution, dissolved in the solvent, and the sodium is being dissolved in water ( or the solvent).

3 0
2 years ago
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