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alina1380 [7]
2 years ago
14

Would you like Brainliest?

Chemistry
2 answers:
lubasha [3.4K]2 years ago
6 0

Answer:

yes please

Explanation:

LuckyWell [14K]2 years ago
5 0
Answer:
may i have brainiest??

explanation:
i don’t have one. but if you wouldn’t mind.
if not that’s ok.
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What is handling of materials and chemicals
Serjik [45]
Exsperements? labs? chemesty? it could be a few things...
5 0
3 years ago
Semimetals is a term which refers to what
zvonat [6]

Answer:

Metalloids, also known as semimetals are elements containing properties similar and midway between metals and nonmetals. They are found to divide the periodic table between the metals on the left and the nonmetals on the right. Metalloids often have the following properties: could be dull or shiny.

3 0
3 years ago
Read 2 more answers
How much water would need to be added to 1092 mL of a 54.7 M NaCl solution to make a 0.25 M solution?
babunello [35]

Answer:

237.8L of water would need to be added.

Explanation:

The first thing to do is to identify that the equation to be used is M1V1=M2V2. (This equation works because it turns everything into moles which can then be compared).

Then figure out what information you have and what is being found. In this case:

M1 = 54.7 M

V1 = 1092 mL = 1.092 L

M2 = 0.25 M

V2 = unknown

Then solve the equation for whatever you are trying to find.

M1V1=M2V2

V2=M1V1/M2

Now you need to plug everything in.

V2=(54.7M*1.091L)/0.25M

V2=238.93L

That means that the solution needs a volume of 238.7L to gain a molarity of 0.25M but the starting solution already had a volume of 1.092 L meaning that to find the amount of solvent that needs to be added you just subtract the starting volume by the volume that the solution needs to be.

238.93L - 1.091L = 237.8L

Therefore the answer is that 237.8L needs to be added to a 1.092L 54.7M NaCl solution to make the concentration 0.25M.

I hope this helps.  Let me know if anything is unclear.

8 0
3 years ago
What is the speed of each vehicle? (Remember S=d/t)
Aleksandr [31]

Answer:

A: 20 km/h, B: 10 km/h

Explanation:

Speed of Vehicle A = 40-20/ 2-1

=20 km/h

If A is 20km/h, B is 10km/h as given in option

5 0
3 years ago
This is the chemical formula for Chormium (III) nitrate Cr(NO3)3Calculate the mass percent of nitrogen in chromium(III) nitrate.
butalik [34]

Answer:

The percent composition for nitrogen in chromium(III) nitrate is 6%.

Explanation:

6 0
3 years ago
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