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Serggg [28]
3 years ago
12

Ahhh&hhh&hhhhhhhhhhhhhh

Chemistry
1 answer:
drek231 [11]3 years ago
8 0

Answer:

Thanks you for the points

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Which of the following descriptions would not be considered a chemical property of the substance?
Margaret [11]
Answer: D. sugar dissolves when placed in water.

Why:
Chemical properties/changes produce NEW substances.

So when sugar dissolves in water, it breaks down, but NOT to a chemical level that separates its elements. Therefore, it would still be sugar and will not create a new compound/element.

This results in the conclusion that when sugar dissolves in water, it is a physical property, NOT chemical.
4 0
3 years ago
In a laboratory experiment, a student titrates 10.0 mL of acetic acid, CH3COOH, solution with 0.5 M NaOH. The endpoint was reach
Rzqust [24]

Answer:

Concentration of acetic acid=2.3mol/L

Explanation:

Write the balanced chemical reacion:

CH_3COOH +NaOH = Na(CH_3COO) +H_2O

N1 and N2 normality of CH3COOH and NaOH respectively;

V1 and V2 volume of CH3COOH and NaOH respectively and they are taken upto end point of titration;

we have given molarity but we need normality;

Normality =molarity \times n-factor

but in case of NaOH and CH3COOH n-factor is 1 for each.

hence

normality=molarity;

N_1V_1=N_2V_2

N_1 \times 10 =0.5\times 46

N_1=2.3=molarity=concentration;

Concentration of acetic acid=2.3mol/L

8 0
3 years ago
Which of the following movements of ocean water has the greatest direct effect on the growth of producers.
zalisa [80]

Answer:

A- Upwelling

Explanation:

3 0
3 years ago
Where do the radioactive elements tend to be located on the table
MAVERICK [17]

Answer:

They are concentrated between atomic numbers 84 and 118 on the periodic table.

4 0
3 years ago
4. How would you calculate the poH of a base when given the<br><br> concentration of [OH]-?
Novay_Z [31]

Answer:

Use pOH = -log₁₀ [OH-]

Explanation:

pOH can be calculated from the concentration of hydroxide ions using the formular below:

pOH = -log₁₀ [OH-]

The pOH is the negative logarithm of the hydroxide ion concentration.

3 0
3 years ago
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