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Free_Kalibri [48]
3 years ago
10

In a Lewis diagram for methane, which atom or atoms is outside

Chemistry
1 answer:
Alik [6]3 years ago
7 0
The hydrogen atoms are on the outside.
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which of the following best helps explain why an increase in temperature increases the rate of a chemical reaction?
NeTakaya

The given question is incomplete. The complete question is as follows.

Which of the following best helps explain why an increase in temperature increases the rate of a chemical reaction?

(a)   at higher temperatures, high-energy collisions happen less frequently.

(b)  at low temperatures, low-energy collisions happen more frequently.

(c)   at higher temperatures, less-energy collisions happen less frequently.

(d)  at higher temperatures, high-energy collisions happen more frequently

Explanation:

When we increase the temperature of a chemical reaction then molecules of the reactant species tend to gain kinetic energy. As a result, they come into motion which leads to more number of collisions within the molecules.

Therefore, chemical reaction will take less amount of time in order to reach its end point. This means that there will occur an increase in rate of reaction.

Thus, we can conclude that the statement at higher temperatures, high-energy collisions happen more frequently, best explains why an increase in temperature increases the rate of a chemical reaction.

6 0
3 years ago
What is 2.15•(6.022•10^23)
sp2606 [1]

Answer:

The answer is 1.29473 x 10^24

Explanation:

6 0
3 years ago
A solution is made by adding 20 g table salt to 100 mL water. The solubility of salt is 36 g/100 mL water. Which term best descr
marysya [2.9K]

Answer:

We say that the solution is unsaturated.

Explanation:

If the salt solubility is 36 g in 0.1 L of water then we can dissolve 360 g of salt in 1 L of water.

Because the solution contains 200 g of salt in 1 L of water, the solution is unsaturated because more salt can be added until we reach the saturation point.

We call the solution dilute when we compare the concentration of a solution with the concentration of another solution, but here we do not compare different solutions.

3 0
2 years ago
Read 2 more answers
How many bonds can a hydrogen atom form?<br> O A. 3<br> O B. 1<br> O c. 4<br> O D. 2
Slav-nsk [51]

Answer:

the right answer is b !!!

8 0
2 years ago
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A model of fossils formed on land, on the shore, and in water was set up in Ms. Bill’s classroom. One of the students commented
zubka84 [21]

Answer:

d.- The model does not provide information about the type of rock in which fossils form.

Explanation:

The fossils can be located in different parts like on land, shore and water. But, they were formed at different time, that means, they live in different ages, that is the reason why the model need to include the type of rock. Remember fossil form at different ages and with the pass of time different layers of rock formed.

Hope this info is useful.

7 0
3 years ago
Read 2 more answers
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