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likoan [24]
3 years ago
15

Pls help fast!!! Test due soon!

Chemistry
2 answers:
vova2212 [387]3 years ago
8 0

Answer:

14

Explanation:

the number of protons (17) -the atomic mass (27) = 14 which is the number of electrons

Firlakuza [10]3 years ago
4 0

Answer:

13

Explanation:

your wellcome

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Why can’t you see the stars very well at night like you could 50 years ago
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6 0
2 years ago
Determine the mass in grams of 4.69 x 1021 atoms of barium. (The
Virty [35]

Answer:

1.07 g Ba

Explanation:

Hello there!

In this case, according to the definition of the Avogadro's number and the molar mass, it is possible to say that 6.022x10^{23} atoms of barium equal one mole, and at the same time, 1 mole equals 137.327 grams of this element; thus, it is possible to say that 6.022x10^{23} atoms of barium have a mass of 137.327 grams; therefore, it i possible for us to calculate the required mass in grams as shown below:

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5 0
2 years ago
Which option explains how some parts of a plant can be white?
just olya [345]

Some parts of a plant can be white because they do not contain chlorophyll.

Chlorophyll is a term to refer to a characteristic compound of most plants that has the function of:

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  • Take charge of the photosynthesis process.

Some plants do not have as much chlorophyll in their systems. However, this does not affect their reproduction and growth because they have developed other feeding methods through their roots.

These plants that contain low amounts of chlorophyll have pale and white colorations because chlorophyll is what gives the plants their intense green color.

Note: This question is incomplete because options are missing. Nevertheless, I can answer it based on my prior knowledge.

Learn more in: brainly.com/question/14884020

7 0
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4 0
3 years ago
Read 2 more answers
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