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Nina [5.8K]
2 years ago
13

PLEASE HELP ME NOW! WHATS NEWTONS FIRST LAW?!!!

Chemistry
1 answer:
Sergeu [11.5K]2 years ago
5 0

Answer:

Newton's first law states that if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.

Explanation:

Hope this helps!

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Urea (CH4N2O) is a common fertilizer that can be synthesized by the reaction of ammonia (NH3) with carbon dioxide as follows: 2N
Lera25 [3.4K]

Answer:

NH3

Explanation:

2NH3(aq)+CO2(aq)→CH4N2O(aq)+H2O(l)

So for two moles of NH3 we need one mole of CO2. So let's count moles for each reagent.

n(NH3)=m(NH3)/M(NH3)=135700/17,03=7968.29 mol

n(CO2)=m(CO2)/M(CO2)=211400/44.01=4803.45 mol

From equation we have to divide n(NH3) by 2 because we need two equivalent per one CO2. That will be 3984.145. So the limiting agent is NH3 because it's not enough of it to react with all CO2

4 0
3 years ago
The electron configuration for an element in the halogen group should always end with Question 16 options:
ludmilkaskok [199]

Answer:

ns²np⁵

Explanation:

The electronic configuration of elements of halogen group ends with 7 electrons in its outer most shell and they distributed as ns²np⁵.

Such as Cl (17 electron): 2,8,7 which is 1s²2s²2p⁶3s²3p⁵.

5 0
3 years ago
Which of the following decomposition reactions is/are correct?
Valentin [98]
<span>The generalized reaction for chemical decomposition is: AB → A + B

NaOH is sodium hydroxide. When sodium and water is combined it makes sodium hydroxide and hydrogen

When sodium hydroxide decomposes under thermal decomposition, it breaks down into sodium oxide and water.

Thus, </span><span>C) 2NaOH Na2O + H2O</span>
4 0
2 years ago
Consider the arrangement of gases shown below. If the value between the gases is opened and the temperature is held constant, de
goblinko [34]

Answer:

I don't know what to say . just for points

7 0
3 years ago
How many electrons does N 3-have?​
Allushta [10]

Answer: 10 electrons

Explanation:

N represents Nitrogen. Nitrogen has an atomic number of 7, this means in ground state it has 7 electrons also.

But N-3, means Nitrogen has gained 3 more electrons. So, we have 10 electrons

8 0
3 years ago
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