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Anna007 [38]
3 years ago
12

1

Chemistry
2 answers:
Volgvan3 years ago
6 0

Answer:

<h2> b)Potassium is the right answer </h2>
s2008m [1.1K]3 years ago
5 0

Answer:

B. Potassium

Explanation:

The element with 19 electrons, 19 protons, and 20 neutrons is potassium

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galben [10]
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According to the kinetic molecular theory, which statement describes the particles in a sample of an ideal gas?
MakcuM [25]

Answer:

The motion of the gas particles is random and in a straight-line. A sample of gas is contained in a closed rigid cylinder.

I hope this helps you if not soo advance sorry :)

3 0
3 years ago
How many grams of a solution that is 5.2% sucrose by mass are needed to obtain 18g of sucrose
kirill115 [55]

Answer:

346.g of solution

Explanation:

In this case, if we have 5.2 % by mass it means that in <u>100 g of the solution we will have 5.2 g of glucose</u>. Therefore we can do the calculation:

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So, if we need 8 g of glucose we had to have 346.15 g of solution

This logic can work for all types of solutions. By mass (as in this case), by volume or mass/volume.

I hope it helps!

3 0
4 years ago
Given the pH of 7. Explain how many hydroxide ions (-OH) and hydronium ions (H30+) are present in the solution.
irga5000 [103]
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6 0
3 years ago
if a magnet is broken which one of the following remains unchanged in each part mass, magnetisation, length
Aleks [24]

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