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Leno4ka [110]
3 years ago
6

Match each scientist with the best description of his work.

Chemistry
1 answer:
Alinara [238K]3 years ago
7 0
C i hope i helped u sorry forgive me of i'm wrong
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How many grams are there in 10.0 moles of Al2O3?
irinina [24]

Explanation:

1 mole is equal to 1 moles Al2O3, or 101.961276 grams.

8 0
3 years ago
Which acide will have more strength<br>out of two acids of pH<br>value 2<br>and 5 why<br>​
gladu [14]

Ph 2 will ahve more strength due to the fact that its more acidic compared to pH 5.

the lower the number of a pH, the more it is heading towards being acidic, but the higher the number, the more it heads towards being an alkali. here is a ppt i made along time ago. hope it can help you . have a nice day

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5 0
2 years ago
3. How many grams of potassium permanganate will react with 36 grams of iron(III)<br>hydroxide? ​
Mrac [35]

7 would be correct because I divide it

8 0
3 years ago
Calculate the molarity of 13.1 g of NaCl in 727 mL of solution
valentina_108 [34]

Answer:

The molarity of the solution is 0,31 M

Explanation:

We calculate the weight of 1 mol of NaCl from the atomic weights of each element of the periodic table. Then, we calculate the molarity, which is a concentration measure that indicates the moles of solute (in this case NaCl) in 1000ml of solution (1 liter)

Weight 1 mol NaCl= Weight Na + Weight Cl= 23 g + 35, 5 g= 58, 5 g

58, 5 g-----1 mol NaCl

13,1 g ---------x= (13,1 g x 1 mol NaCl)/58, 5 g= 0, 224 mol NaCl

727 ml solution------ 0, 224 mol NaCl

1000ml solution------x= (1000ml solutionx0, 224 mol NaCl)/727 ml solution

x=0,308 mol NaCl---> <em>The solution is 0,31 molar (0,31 M)</em>

5 0
3 years ago
2. Water is a great example of a molecule with polar covalent bonds. How does this bond affect the
Rzqust [24]

Answer :

Example of polar covalent molecules H-O-H(water), ammonia

Explanation:

The presence of intermolecular Hydrogen bonding makes the boiling point of water unexpectedly high, and the polar covalent nature makes it dissolve polar solute/compound

8 0
2 years ago
Read 2 more answers
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