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ladessa [460]
3 years ago
10

The combining of hydrogen and oxygen gas into liquid water is an example of what kind of change?

Chemistry
2 answers:
exis [7]3 years ago
7 0

Answer:

chemical change

Explanation:

itit is a chemical change because they are both gases and gases mixed together would be chemical change

Zolol [24]3 years ago
4 0

Answer:

chemical change

Explanation:

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A solution with a pH of 2 is (Choose) acidic than(as) a solution with a pH of 6.
Licemer1 [7]

Answer:

more acidic

Explanation:

The closer to 0 the more acidic a solution.

- Hope that helps! Please let me know if you need further explanation.

3 0
4 years ago
A. They have a larger number of core electrons
NARA [144]
B. Their electrons are assigned to s and p orbitals only.
5 0
4 years ago
Consider the reaction represented by the equation?2SO2(g) + O2(g) 2SO3(g).?For the system at chemical equilibrium, which of the
rewona [7]

Answer:

b. The amount of SO3(g) decreases and the value for K increases.

Explanation:

Hello,

In this case, for the given reaction:

2SO_2(g) + O_2(g)\rightleftharpoons  2SO_3(g)

The change in the stoichiometric coefficient is:

\Delta \nu=2-2-1=-1

In such a way, since the reagents have more moles than the products, based on Le Chatelier's principle, if the volume is increased, the side with more moles is favored. In addition, since the formation of reagent is favored, K is diminished based on the law of mass action shown below:

K=\frac{[SO_3]_{eq}^2}{[SO_2]_{eq}^2[O_2]_{eq}}

Therefore the answer is:

b. The amount of SO3(g) decreases and the value for K increases.

Best regards.

3 0
4 years ago
The correct sequence where reactivity towards oxygen increases.
ziro4ka [17]

Answer:

Option D is good to go!

Explanation: as per the reactivity series more reactive substances will react with the counterpart substance.The most reactive substance here is calcium while the least reactive is aluminium, the magnesium comes in between.As per their reactivity, these substances will react with oxygen.

Explanation:

3 0
3 years ago
Which of the following are considered pure substance??
Shkiper50 [21]

Answer:

Explanation:

I’m 99.9% sure that it’s an element because it can’t be broken down any more than it already is.

7 0
4 years ago
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