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laiz [17]
4 years ago
11

The total number of subatomic particles in the nucleus is known as what

Chemistry
1 answer:
aliya0001 [1]4 years ago
6 0
It is known as the atomic weight
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Which of the following choices is an <br> example of gathering evidence
-BARSIC- [3]

Answer: Taking measurements

Explanation:

Apex

3 0
3 years ago
What is the percent yield of LiCl if I produced 30.85g LiCl and my theoretical yield was calculated to be 35.40g LiCl?
marissa [1.9K]

Answer:

87.15%

Explanation:

To find percent yield, we can use this simple equation

\frac{Actual}{Theoretical} *100

Where "Actual" is the amount in grams actually collected from the reaction, and "Theoretical" is, well, the theoretical amount that should have been produced.

They give us these values, so to find the percent yield, just plug the numbers in.

\frac{30.85}{35.40} *100\\\\ =87.15

So, the percent yield is 87.15%

An easy trick to remember how to do this is just to divide the smaller number by the bigger number and move the decimal back two places. If you have a percent yield greater than 100%, something is wrong in the reaction.

7 0
3 years ago
What example of mixture could be seperated using two or more techniques? Explain your answer
STatiana [176]
You can take two liquids of different densities (how much mass is in a given volume) and pour them into a funnel. An example is oil and water. When the mixture settles, the denser liquid will be at the bottom, and drips through the funnel first. This is a separation that you can just let occur naturally.
8 0
3 years ago
What produced the sulfuric acid that helped form the Lechugilla caves
Mila [183]
The answer you need is B. Pollution. Have in mind that Caves contain carvings and depictions that are formed from acids running through the limestones of the cave. The sulfuric acid that helped form the Lechugilla caves come from pollution.I hope this info can help you
7 0
3 years ago
Suppose the mass spectrum of a hypothetical monatomic element X contains a signal at mass number 13 and another of identical hei
aksik [14]
1. Ur graph should have 2 vertical lines || , of equal height at mass 13 and 15.
 
2. One, because you have the mass, which in this case is 13 and the other 15, which has the same height. So it must be the isotope. By definition, an isotope has the same number of protons, but different number of neutrons.
 
3. to solve for fractional abundance, Let x = fraction of element: "I"-13 then fraction of "I"-15 must be 1-x so you have: 13x + (15<span>)(1-x) = 13 solve for x.</span>
7 0
3 years ago
Read 2 more answers
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