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frosja888 [35]
3 years ago
8

T or F: The mass of a neutron is so small that it is rounded to 1 amu.

Chemistry
2 answers:
Lana71 [14]3 years ago
7 0

Answer: True

Explanation: The sum of the numbers of protons and neutrons in the nucleus is the mass number. Each proton and each neutron weigh one atomic mass unit (amu).

IrinaVladis [17]3 years ago
4 0

Answer:

True!

Explanation:

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Ede4ka [16]

Answer:

what is scientific model

Explanation:

4 0
3 years ago
A gas sample is found to contain 39.10% carbon, 7.67% hydrogen, 26.11% oxygen, 16.82% phosphorus, and 10.30% fluorine. If the mo
Doss [256]

Answer:

C6H14O3F

Explanation:

The first step is to divide each compound by its molecular weight

Carbon

= 39.10/12

= 3.258

Hydrogen

= 7.67/1

= 7.67

Oxygen

= 26.11/16

= 1.63

Phosphorous

= 16.82/31

= 0.542

Flourine

= 10.30/19

= 0.542

The next step is to divide by the lowes value

3.258/0.542

= 6 mol of C

7.67/0.542

= 14 mol of H

1.63/0.542

= 3 mol of O

0.542/0.542

= 1 mol of P

0.542/0.542

= 1 mol of F

Hence the molecular formula is C6H14O3F

5 0
3 years ago
A solution is made by dissolving 4.0 moles of sodium chloride (NaCl) in 2.05 kilograms of water. If the molal boiling point cons
kozerog [31]
Properties of a solution that depend only on the ratio of the number of particles of solute and solvent in the solution are known as colligative properties. For this problem, we use boiling point elevation concept.

ΔT(boiling point)  = (Kb)mi
ΔT(boiling point)  = (0.51 C-kg / mol )(4.0 mol / 2.05 kg ) (2)
ΔT(boiling point)  = 1.99 C

T(boiling point) = 101.99 C
4 0
3 years ago
How many totals atoms are present in the compound : Mg(OH)2<br><br> A. 3<br> B. 4<br> C. 5<br> D. 7
Semenov [28]

1 atom Mg, 2 atoms O and 2 atoms H.

1 + 2 + 2 = 5, so correct answer is C

5 0
3 years ago
_________ rock's form when hot, molten rock cools and becomes a solid
zavuch27 [327]
The answer to fill in the blank is (igneous)

I hope I helped.
3 0
3 years ago
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