The pH scale measures the relative strength of acids or bases in ___________. a Isolation b Metals c Solutions d Hydrocarbons

Equation balancing a. S(s) + O2(g) → SO3(8) b. 2Al(s) + 3C12(8) ► 2AICI,(s) E. 2NaOH(s) + H2SO,(ac) —Na,SO (ac) + H2O(1) d. CHg(

Debora [2.8K]

Answer:

a. S(s) + 3/2 O₂(g) → SO₃(g)

b. Al(s) + 3/2 Cl₂(g) → AICI₃(s)

c. 2 NaOH(s) + H₂SO₄(ac) → Na₂SO₄(ac) + 2 H₂O(l)

d. C₃H₈(g) + 5 O₂(g) → 3 CO₂(g) + 4 H₂O(g)

Explanation:

We will balance the equation using the trial and error method.

a. S(s) + O₂(g) → SO₃(g)

1. We will balance O atoms by multiplying O₂by 3/2.

S(s) + 3/2 O₂(g) → SO₃(g)

b. Al(s) + Cl₂(g) → AICI₃(s)

1. We will balance Cl atoms by multiplying Cl₂ by 3/2.

Al(s) + 3/2 Cl₂(g) → AICI₃(s)

c. NaOH(s) + H₂SO₄(ac) → Na₂SO₄(ac) + H₂O(l)

1. We will balance Na atoms by multiplying NaOH by 2.

2. We will balance H and O atoms by multiplying H₂O by 2.

2 NaOH(s) + H₂SO₄(ac) → Na₂SO₄(ac) + 2 H₂O(l)

d. C₃H₈(g) + O₂(g) → CO₂(g) + H₂O(g)

1. We will balance C atoms by multiplying CO₂ by 3.

2. We will balance H atoms by multiplying H₂O by 4.

3. We will balance O atoms by multiplying O₂ by 5.

C₃H₈(g) + 5 O₂(g) → 3 CO₂(g) + 4 H₂O(g)

8 0

3 years ago

A reaction between liquid reactants takes place at in a sealed, evacuated vessel with a measured volume of . Measurements show t

Semmy [17]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The pressure is $P = 0.76 \ atm$

Explanation:

From the question we are told that

The mass of the carbon monoxide is $m_c = 17 \ g$

The temperature at which takes place $T = 30 .0^oC = 30 + 273 = 303 K$

The volume of the sealed vessel is $V = 20 .0L$

Generally the ideal gas law is mathematically represented as

$PV = nRT$

Where R is the gas constant with value $R = 0.0821 \ L \ atm \ mol^{-1} K^{-1}$

n is the number of moles of carbon monoxide which is mathematically evaluated as

$n = \frac{m_c}{M_c}$

where $M_c$ is the molar mass of carbon monoxide which is a constant with value

$M_c = 28 \ g/mol$

So $n = \frac{17}{28}$

$n =0.6071$

Now Making P the subject we have

$P =\frac{ 0.6071 * 0.0821 * 303}{20}$

$P = 0.76 \ atm$

5 0

3 years ago

Hi friends so i rly need help in this question um plz answer

levacccp [35]

7. Average Atomic Mass
8. Atomic Number
9. Isotopes
10.Ions
11. Mass number

3 0

4 years ago

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Galileo called the dark, flat parts of the moon______

exis [7]

Answer:

Marias

Explanation:

8 0

3 years ago

Hello people ~

posledela

Answer:

Answer: C

Melamine resin or melamine formaldehyde (also shortened to melamine) is a resin with melamine rings terminated with multiple hydroxyl groups derived from formaldehyde. This thermosetting plastic material is made from melamine and formaldehyde.

Melamine formaldehyde is a thermosetting plastic (or thermoset) that strengthens as it is heated during its preparation.

3 0

2 years ago

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