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mash [69]
3 years ago
12

What subatomic particle is specifically responsible for combining the atoms together to form a new substance?

Chemistry
2 answers:
riadik2000 [5.3K]3 years ago
7 0
Nooooo ideas hdbddjg
Harman [31]3 years ago
4 0
That would be the electron

In covalent bonds, atoms share electrons to reach a stable amount of valence electrons

In ionic bonds, electrons are transferred from one atom to another in order to reach octets. The ions then become attracted to each other via positive and negative charges.
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Lina has worked hard to gather data for her experiments. With her last set of data she received, she is ready to publish her pap
nika2105 [10]

43.8 has 3 significant figures and 1 decimal.

<h3 /><h3>What are significant figures?</h3>

The term significant figures refer to the number of important single digits (0 through 9 inclusive) in the coefficient of an expression in scientific notation.

All zeros that occur between any two non-zero digits are significant. For example, 108.0097 contains seven significant digits. All zeros that are on the right of a decimal point and also to the left of a non-zero digit are never significant. For example, 0.00798 contained three significant digits.

Hence, 43.8 has 3 significant figures and 1 decimal.

Learn more about significant figures here:

brainly.com/question/14359464

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8 0
2 years ago
NaF + HCL=&gt; NACL + HF
Jobisdone [24]

Answer:

NaF + HCl --> NaCl + HF

Explanation:

hope it helps you

4 0
2 years ago
An emerald gemstone is an impure form of the mineral beryl, Be3Al2Si16O18. What is the percentage of silicon in the mineral?
solong [7]

Answer:

b. 54.9%

Explanation:

An emerald gemstone has the formula Be₃Al₂Si₁₆O₁₈. We can find the mass of each element in 1 mole of Be₃Al₂Si₁₆O₁₈ by multiplying the molar mass of the element by its atomicity.

Be: 3 × 9.01 g = 27.03 g

Al: 2 × 26.98 g = 53.96 g

Si: 16 × 28.09 g = 449.4 g

O: 18 × 16.00 g = 288.0 g

Total mass = 818.4 g

The mass percentage of silicon is:

(449.4 g / 818.4 g) × 100% = 54.91%

4 0
3 years ago
When a glass or a watermelon is moved, the volume stays the same. When a liquid is poured into a glass, the volume and the shape
Vera_Pavlovna [14]

Answer:

E

Explanation:

6 0
3 years ago
Which of the following is an example of a physical change?
o-na [289]

Answer:

I think b is the correct answer

7 0
3 years ago
Read 2 more answers
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