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HACTEHA [7]
2 years ago
8

Frrrreeeeeee point freeeeee

Chemistry
1 answer:
ahrayia [7]2 years ago
7 0

Answer:

Ok the answer is 345

Explanation:

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What is the molarity of a solution containing 17.0 g of KCl in 213 mL of KCl solution?
Anarel [89]

Answer:

1.070MKCl

Explanation:

So we know that the original formula is M= n/L (n being moles of solute, L being liters of solvent)

Since we do not have liters in this problem, we would need to convert  milliliters to liters

<u>213 mL= 0.213 L</u>

We then see that we do not have moles, but we do have a mass, being <u>17.0 g.</u> we would need to convert these grams to moles, giving us <u>0.228 mol.</u>

Then, you would plug in <u>0.228 for your n</u>, and now you are ready to solve your original formula, plugging everything in.

M=n/L

M=0.228 mol/0.213L

M= 1.070MKCl

I know this was long, but I hope this helps (:

5 0
2 years ago
Like a battery this structure produces energy electrically
NeX [460]

Answer:

what stuture?

Explanation:

8 0
2 years ago
Imagine that you wanted to make a time capsule in which you would seal important artifacts from your life (pictures, poems, a lo
Elza [17]

Answer:

Argon gas

Explanation:

Between the options given, argon gas is the least reactive. Argon is known as a <em>noble gas</em>, this means that it is located in the group 18 in the periodic table. These gases are known for their low reactivity, under most circumstances.

The <u>electronic configuration</u> of argon helps us see why that is the case: With an atomic number of 18, it has an electronic configuration of 1s² 2s² 2p⁶ 3s² 3p⁶. This means the most external orbital is filled with electrons, meaning that there are not unpaired electrons able to react with other substances.

5 0
3 years ago
Can you help me with this question ​
Digiron [165]

Answer:

lithium is the most reactive alkali metal false as the reactivity of alkali metals increases from the top to the bottom of the group, so lithium (Li) is the least reactive alkali metal.

covalent bond is formed due to mutual sharing of electrons true

potassium is most reactive matal in activity series of metals false no lithium is more reactive than potassium

the process in which heat is given on surrounding is exothermic reaction not endothermic reaction

alkyl molecule is formed by removal of one hydrogen atom from alkane molecule true

Explanation:

3 0
3 years ago
N order for a double replacement reaction to take place, the reactants must be
Ivahew [28]
The reactants and products must be both compounds.

Ex. AB+CD --> AD+BC
4 0
3 years ago
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