2 years ago

Please help !!!!!!!!!!!!

Chemistry

1 answer:

Bogdan [553]2 years ago

6 0

What the hell is that

You might be interested in

Can matter be created or<br> destroyed?<br><br> Yes or No

anzhelika [568]

Answer:

Explanation:

The same amount of matter is present before and after chemical and physical changes. Matter cannot be created or destroyed

5 0

2 years ago

Read 2 more answers

A certain protein was found to contain 0.292% manganese by mass. Determine the minimum molecular mass of the protein.

Lisa [10]

$55u \ \ \ \ \ \ \Rightarrow \ \ \ \ \ 0,292\%\\
x \ \ \ \ \ \ \ \ \ \Rightarrow \ \ \ \ \ 100\%\\\\
x = \frac{55u*100\%}{0,292\%}\approx18835,62u$

4 0

3 years ago

PLS HELP ASAP!! Why is titanium known as a strategic metal??

Rom4ik [11]

__________________________________________________

Titanium is known as a strategic metal because it is one of the most abundant items on Earth! Also, it is used to build structures, such as space crafts, aircrafts, etc.

__________________________________________________

Hope this helps!

7 0

2 years ago

A chemistry student weighs out 0.027 kg of an unknown solid compound X and adds it to 550. mL of distilled water at 30.° C. Afte

QveST [7]

Answer:

1. Yes

2.The solubility of X is 34.55g/L

Explanation:

Solubility of solute refers to how readily a solute will dissolve in a solvent at a particular temperature. Its the amount of moles or grams required to saturate 1dm $^{3}$ or 1 Litre of water.

From the problem, when the liquid was drained off and amount of X which didn't dissolve was measured, it weighed 0.008kg, this means out of 0.027kg, 0.027-0.008 actually dissolved

= 0.019kg*1000 = 19g.

if 19g is required to saturate 550mL at 30°C,

then $\frac{19*1000}{550}$ will saturate 1L