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satela [25.4K]
3 years ago
7

Help with 3 true/false questions for chem please ! (Just needs revision!)

Chemistry
2 answers:
EastWind [94]3 years ago
7 0
1. false 2. true 3.true 
docker41 [41]3 years ago
4 0
1) False, it is actually 0 not 1

2) True. Electrolytic cells have non-spontaneous reactions and voltaic cells have spontaneous ones

3) False. One species must gain the electrons that another species loses

Hope this helps
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What happens to electrons in an ionic bond? *
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Calculate the density in g/cm3 for the mass of 452.1g and volume of 292cm3
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3 years ago
Which molecule has the greatest difference in electronegativity (DE) between the two different elements? A. CO_2 B. H_2S C. NH_3
Natalka [10]

Answer:

Water has the greatest ΔEN

ΔEN H₂O → 3.4 - 2.1 = 1.3   Option D.

Explanation:

We should find the Electronegativity data in the Periodic table for all the elements:

C : 2.6

O: 3.4

H: 2.1

S: 2.6

N: 3.0

a. ΔEN CO₂ → 3.4 - 2.6 = 0.4

b. ΔEN H₂S → 2.6 - 2.1 = 0.5

c. ΔEN NH₃ → 3 - 2.1= 0.9

d. ΔEN H₂O → 3.4 - 2.1 = 1.3

3 0
4 years ago
PLEASE HELP ASAP!!THANKS!
Radda [10]

Balanced chemical reaction:

4C₅H₉O + 27O₂ → 20CO₂ + 18H₂O.

According to principle of mass conservation, number of atoms must be equal on both side of chemical reaction.

Type of reaction is combustion.

Combustion is reaction with oxygen.

Organic compound reacts with oxygen and produce carbon dioxide and water.

5 0
4 years ago
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