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2 years ago

Which of the following questions can be answered by science?

Chemistry

2 answers:

Irina18 [472]2 years ago

7 0

Answer:

A. What is the composition of air?, B. Should the driving age be reduced?, D.

Should students be allowed to bring toys to school? Answer: A,B,D.

Hunter-Best [27]2 years ago

6 0

Answer:

<h2>(a), (b) and (c) I guess</h2>

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Ins1502 assignment 03

dezoksy [38]

Answer:

I think you forgot to post the question or picture

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2 years ago

When 13.6 grams of kcl are dissolved in enough water to create a 180-gram solution, what is the solution's concentration, expres

bonufazy [111]

7.6% KCl I had the same problem on my semester exam for summer school

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3 years ago

Read 2 more answers

The reduction of nitrogen monoxide is described by the following chemical equation: 2H2 (g) +2NO (g) 2H20 ()N2 (g Suppose a two-

Ipatiy [6.2K]

Answer:

Reasonable Second step- $N_{2}O(g)+H_{2}(g)\rightarrow N_{2}(g)+H_{2}O(g)$

Explanation:

The given single step chemical reaction is as follows.

$2H_{2}(g)+2NO \rightarrow 2H_{2}O(g)+N_{2}(g)$

Suppose a two-step mechanism is proposed for this reaction,

The reaction occured in two steps they are as follows.

$Step -1:H_{2}(g)+2NO \rightarrow N_{2}O(g)+H_{2}O(g)$

$Step-2:N_{2}O(g)+H_{2}(g)\rightarrow N_{2}(g)+H_{2}O(g)$

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3 years ago

How does carbon cycle through the ocean, atmosphere, soil, and biosphere?

saw5 [17]

Carbon moves from one storage reservoir to another through a variety of mechanisms. For example, in the food chain, plants move carbon from the atmosphere into the biosphere through photosynthesis. Respiration, excretion, and decomposition release the carbon back into the atmosphere or soil, continuing the cycle.
make sure to paraphrase and give thanks:) good luck

3 0

3 years ago

I don’t understand this question and need help!!

Dafna1 [17]

Medium about 3 second? Not sure lol just need more points honestly lol

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2 years ago