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o-na [289]
3 years ago
15

An atom is

Chemistry
2 answers:
34kurt3 years ago
8 0
The answer is a. the smallest unit of matter that maintains its chemical identity.
Dennis_Churaev [7]3 years ago
3 0

Answer:

a. the smallest unit of matter that maintains its chemical identity.

Explanation:

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They will become unequivalent

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2 years ago
Determine the molarity of a 6.0 mole% sulfuric acid solution with SG-a 1.07 Note: Atomic Weight: S (32), O 16); H (O)
marin [14]

Answer:

The molarity of a 6.0 mole% sulfuric acid solution is 2.8157 Molar.

Explanation:

Suppose there are 100 moles in solution:

Moles of sulfuric acid = 6% of 100 moles = 6 moles

Mass of 6 moles of sulfuric acid = 6 mol × 98 g/mol=588 g

Moles of water = 100%- 6% = 94%= 94 moles

Mass of water = 94 mol × 18 g/mol = 1692 g

Specific gravity of the solution ,S.G= 1.07

Density of solution = D

S.G=\frac{D}{d_w}

d_w = density of water = 1 g/mL

D=S.G\times d_w=1.07\times 1 g/mL=1.07 g/mL

Mass of the solution = 588 g + 1692 g = 2280 g

Volume of the solution = V

Volume = \frac{Mass}{Density}

=\frac{2280 g}{1.07 g/mL}=2130.84 mL=2.13084 L

1 mL = 0.001 L

Molarity = \frac{n}{V(L)}

n = number of moles of compound

V = volume of the solution in L

here we have ,n = 6 moles of sulfuric acid

V = 2.13084 L

So, the molarity of the solution is :

Molarity=\frac{6 mol}{2.13084 L}=2.8157 mol/L

5 0
2 years ago
_____ The primary function of molecular membranes is the transport of ions and molecules into and out of cells. The movement of
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<h2>Active Transport </h2>

Explanation:

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A 32.78 g sample of a substance is initially at 22.7 °c. after absorbing 2017 j of heat, the temperature of the substance is 173
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Heat= mass * change in temperature* specific heat
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3 years ago
A scientist in Germany published his findings from a scientific investigation that he conducted. Other scientists from around th
Zolol [24]

The results are considered more reliable, based off the fact that when other scientists redid his experiment they found similar results but it’s not enough evidence to be more

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2 years ago
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