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3 years ago

Why do liquids and gases take the shape of their containers while solids do not?

Chemistry

2 answers:

iVinArrow [24]3 years ago

5 0

Solid does not take up the container because its whole. A liquid is wet and shapes the container.

Alexeev081 [22]3 years ago

5 0

Liquids can flow because their particles can move over each other. When water is poured into a glass, the particles of water move over each other and into the corners of the glass. The particles keep on moving over each other as the water takes the shape of the glass. Gases can flow because they can move in any direction.

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If a solution containing 51.429 g of mercury(ii) perchlorate is allowed to react completely with a solution containing 16.642 g

OLga [1]

Hg(No3)2 +NaSO4 --->2NaNO3 + HgSO4(s)
calculate the moles of each reactant
moles=mass/molar mass

moles of Hg(NO3)2= 51.429g/ 324.6 g/mol(molar mass of Hg(NO3)2)=0.158 moles

moles Na2SO4 16.642g/142g/mol= 0.117 moles of Na2SO4

Na2SO4 is the limiting reagent in the equation and by use mole ratio Na2So4 to HgSO4 is 1:1 therefore the moles of HgSO4 =0.117 moles

mass of HgSO4=moles x molar mass of HgSo4= 0.117 g x 303.6g/mol= 35.5212 grams

7 0

4 years ago

All of the following affect toxicity of a substance except*

Studentka2010 [4]

Answer:

durage

Explanation:

durage just doesn't make sense compared to the other 3

8 0

3 years ago

Read 2 more answers

Which of the following affects the rate of a chemical reaction?

butalik [34]

D. A ll of the above. catalyst reduces the activation energy thereby making the reaction faster. an increase in temperature increases the kinetic energy and no of collisions making reaction faster for an endothermic reaction while decrease in temperature favors an exothermic reaction.
increase in concentration increases the molecules reacting so the reaction is faster and vice versa.

6 0

4 years ago

Read 2 more answers

M → M+ + e- Has M lost or gained an electron?

navik [9.2K]

M has lost an electron.
It's oxidation.

5 0

3 years ago

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2.50g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molecular molar mass of 12

Art [367]

Answer:

Molecular Formula = C₁₀H₈

Explanation:

Step 1: Calculating Moles for each Element:

C = Mass of CO₂ × (1 mol of CO₂÷ M.Mass of CO₂) × (1 mol of C ÷ 1 mol of CO₂)

C = 8.60 g × (1 mol of CO₂÷ 44.011 g.mol⁻¹) × (1 mol of C ÷ 1 mol of CO₂)

C = 0.1954 mol

H = Mass of H₂O × (1 mol of H₂O ÷ M.Mass of H₂O) × (2 mol of H ÷ 1 mol of H₂O)

H = 1.41 g × (1 mol of H₂O ÷ 18.106 g.mol⁻¹) × (2 mol of H ÷ 1 mol of H₂O)

H = 0.1557 mol

Step 2: Calculate the Smallest whole number ratio as,

C H

0.1954 0.1557

0.1954/0.1557 0.1557/0.1557

1.25 1

Multiply ratio by 4,

5 4

Result:

Empirical Formula of Propane is C₅H₄

Step 3: Calculate Molecular Formula:

Molecular formula is calculated by using following formula,

Molecular Formula = n × Empirical Formula ---- (1)

Also, n is given as,

n = Molecular Weight / Empirical Formula Weight

Molecular Weight = 128.0 g.mol⁻¹

Empirical Formula Weight = 5 (C) + 4 (H) = 64 g.mol⁻¹

So,

n = 128.0 g.mol⁻¹ ÷ 64 g.mol⁻¹

n = 2

Putting Empirical Formula and value of "n" in equation 1,

Molecular Formula = 2 × C₅H₄

Molecular Formula = C₁₀H₈

4 0

3 years ago