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Luba_88 [7]
3 years ago
13

The equation shows lead reacting with sulfuric acid to produce lead sulfate and hydrogen gas. mc012-1.jpg Which type of chemical

reaction does this equation represent? synthesis decomposition single replacement double replacement
Chemistry
2 answers:
krok68 [10]3 years ago
4 0
Single replacement and I know that for sure if you need me to explain i can but its Single replacement <span />
zhannawk [14.2K]3 years ago
3 0

Answer:-

Single replacement

Explanation:-

The definition for single displacement reaction is the reaction where an element must displace another element from it's compound

The symbol for lead is Pb

The formula for lead sulfate is PbSO4.

The formula for sulfuric acid is H2SO4.

The formula for Hydrogen gas is H2.

The balanced chemical equation is

Pb + H2SO4 --> PbSO4 + H2

Here we can see that an element Pb is reacting with a compound H2SO4 and takes the place of H2 to form PbSO4.

Hence this is an example of single displacement reaction.

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What is the pOH of a 0.025 M [H+] solution? A.0.94 B.1.60 C.12.40 D.13.06
Greeley [361]

Answer:

option C= 12.40

Explanation:

Formula:

pH + pOH = 14

First of all we will calculate the pH.

pH = - log [H⁺]

pH = - log [0.025]

pH = - (-1.6)

pH = 1.6

Now we will put the values in formula,

pH + pOH = 14

pOH = 14-pH

pOH = 14 -1.6

pOH = 12.4

The pOH of solution is 12.4.

6 0
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A 2.75 M solution is diluted to 0.706 M, if the starting volume was 0.833L, what is the new volume?
Nitella [24]

Answer:

3.2447

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What is the expected value for the heat of sublimation of acetic acid if its heat of fusion is 10.8 kJ/mol and its heat of vapor
Dennis_Churaev [7]

Answer:

35.1 kJ/mol is the expected value for the heat of sublimation of acetic acid.

Explanation:

CH_3COOH(l)\rightarrow CH_3COOH(g)..[1]

Heat of vaporization of acetic acid = H^o_{vap}=24.3 kJ/mol

CH_3COOH(s)\rightarrow CH_3COOH(l)..[2]

Heat of fusion of acetic acid = H^o_{fus}=10.8 kJ/mol

Heat of sublimation of acetic acid = H^o_{sub}=?

CH_3COOH(s)\rightarrow CH_3COOH(g)..[3]

[1] + [2] = [3] (Hess's law)

H^o_{sub}=H^o_{vap}+H^o_{fus}

=24.3 kJ/mol+10.8 kJ/mol=35.1 kJ/mol

35.1 kJ/mol is the expected value for the heat of sublimation of acetic acid.

5 0
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Put the mixture in water, the pebbles will sink, the pepper will float, and the sugar will dissolve
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