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Marysya12 [62]
3 years ago
8

Please helppp which one??????????

Chemistry
1 answer:
lbvjy [14]3 years ago
6 0
The answer should be B
.
Hopes this helps :D
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Given: h2o(aq) + h2o(l) h3o+(aq) + oh–(aq) δh°rxn > 0 when the temperature of a sample of pure water is raised above 25°c,
sesenic [268]
When Δ H > 0 that means this is an endothermic reaction, and we can assume heat as one of the reactants. SO when the temperature increases so the reaction will move rightward to decrease the reactants and increase the products and as the products increase it will make the Kw increase also as
 Kw = [Products] /[reactants].

So our answer will be: the value of Kw will increase.
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3 years ago
The production of 2-methyl-2-phenyl propane. This would be a two-step synthesis.
olganol [36]
Sorry man, this isn’t really my cup of tea
4 0
3 years ago
Please help me! Please explain!
Ksju [112]

Answer: Total number of Protons PLUS Neutrons

Explanation:

Hopes that helps

8 0
3 years ago
What is the psychoactive ingredient in alcoholic beverages? ethylene glycol methanol isopropyl alcohol ethanol?
Virty [35]
The psychoactive ingredient in alcoholic beverages is Ethanol (Ethyl Alcohol). 
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7 0
3 years ago
How many moles of O2 are required to react with 2.4 mol of H2 ?
Leokris [45]

Answer:

1.2 moles

Explanation:

this is the balanced equation for the reaction of oxygen (O2) and hydrogen (H2), usually we don't write the 1 in front of O2

2H₂ + 10₂ → 2H₂O

the molar ratio of hydrogen to oxygen is 2 : 1

we are trying to react with 2.4 mol of H2 so the moles of O2 is half the number of moles of H2 = 2.4 ÷ 2 = 1.2 mol

another way to think of it:

2H₂ + 10₂

2 : 1

2.4 mol : x mol

to get from 2 to 2.4 multiply by 1.2, so do the same to the other side

1 × 1.2 = 1.2 mol

8 0
2 years ago
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