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Nikolay [14]
3 years ago
15

Near the ceiling of a room air is warmer. The warm air rises because of

Chemistry
2 answers:
timurjin [86]3 years ago
4 0

Answer:

Convection

Explanation:

Amiraneli [1.4K]3 years ago
3 0

Answer:

convection

Explanation:

heat will always rise

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What information is needed to calculate the average atomic mass of an element?(1 point)
g100num [7]

Answer:

Taking into account the definition of average atomic mass and isotopes of an element, the information that you need is the masses of its isotopes and their percent abundances.

Each chemical element is characterized by the number of protons in its nucleus, which is called the atomic number Z.

But in the nucleus of each element it is also possible to find neutrons, whose number can vary. The atomic mass (A) is obtained by adding the number of protons and neutrons in a given nucleus.

The same chemical element can be made up of different atoms, that is, their atomic numbers are the same, but the number of neutrons is different. These atoms are called isotopes of the element.

The atomic mass of an element is the weighted average mass of its natural isotopes. Therefore, the atomic mass of an element is not a whole number.

The weighted average means that not all isotopes have the same percentage.

In other words, the atomic masses of chemical elements are usually calculated as the weighted average of the masses of the different isotopes of each element, taking into account the relative abundance of each of them.

Explanation:

7 0
3 years ago
What are the reactants in a neutralization reaction?
castortr0y [4]

answer an element and a compound

8 0
3 years ago
Which product is typically made using softwood?
deff fn [24]

Answer:c

Explanation:

softwood is used in doors roofs and so on

5 0
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Answer #4 and #5 make sure you have proof and will give brainliest
sweet-ann [11.9K]

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B,C

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To find the atomic mass of a particular atom you need to know
AveGali [126]
The answer is (C) as the definitions states that atomic mass is the number of protons and neutrons.
Hope this helps :).
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3 years ago
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