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Colt1911 [192]
3 years ago
10

What are the answers to all of these, I NEED HELP ASAP

Chemistry
1 answer:
Alina [70]3 years ago
4 0

Answer:

well you see here if you add 15+15 it equals 30

Explanation:

please put the question :)

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SOS TESTING:
andrezito [222]

Answer:

Condensation

Explanation:

An exothermic process is one in which heat is lost. Condensation is a change of state from gas to liquid. Thus is loses heat.

HOPE THIS HELPED

4 0
3 years ago
The decomposition of SOCl2 is first-order in SOCl2. If the half-life for the reaction is 4.1 hr, how long would it take for the
qaws [65]
4.1 h = 14760 s 

<span>t 1/2 = ln 2 / k </span>

<span>k = rate reaction = 4.97 x 10^-5 </span>

<span>ln 0.045 / 0.36 = - 4.97 x 10^-5 t </span>

<span>2.08 = 4.97 x 10^-5 t </span>

<span>t = 41839.9 s = 11 h 37 min 19 s</span>
3 0
3 years ago
Explain why you usually can't use just a single spectrum line to confirm the identity of an element
Agata [3.3K]
You can't usually just use a  single spectrum line to confirm the identity of an element because there are cases that the emission line id not clearly defined.  When the emission line is very weak compared to surrounding noise, in which case the more datapoints you have to build up confidence for the existence of a particular emission spectra, the better.
8 0
3 years ago
Which of the following undergoes change during a chemical reaction? A. atomic masses of elements in reactants B. element identit
Virty [35]

Chemical bonds between atoms in reactants undergo change during a chemical reaction.

 

<span>The substance (or substances) initially involved in a </span>chemical reaction<span> <span>are called reactants or reagents. </span></span>Chemical reactions<span> <span>are usually characterized by a </span></span>chemical<span> change, and they yield one or more products, which usually have properties different from the reactants.</span>

 

The correct answer between all the choices given is the last choice or letter D. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

8 0
3 years ago
Which of the following locations would experience the highest rate of sublimation?
g100num [7]
I think its the arctic ice caps
6 0
3 years ago
Read 2 more answers
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