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3 years ago

Please help me I will give you the brain thing and extra points. image below part 9

Chemistry

2 answers:

marshall27 [118]3 years ago

8 0

Answer:B

Explanation:Factors that influence the reaction rates of chemical reactions include the concentration of reactants, temperature, the physical state of reactants and their dispersion, the solvent, and the presence of a catalyst.

blsea [12.9K]3 years ago

5 0

Answer:

I think D but dont count on me

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neutralization, the chemical reaction combining an acid with a base to produce a neutral solution produce produces a salt and

Contact [7]

Water (H2O).

Neutralization is a double replacement reaction in which an acid and base combine to creaet water and a salt.

Hope this helps!

7 0

4 years ago

The density of ethanol is 0.789 g/mL. If you need 460.0 g of ethanol for an experiment, how many milliliters would you measure o

4vir4ik [10]

Answer:

The volume is 583.02 mL

Explanation:

Given that the density is:-

$\rho=0.789\ g/mL$

The mass, $m=460.0\ g$

The expression for the calculation of density is shown below as:-

$\rho=\frac{m}{V}$

Using the above expression to calculate the volume as:-

$V=\frac{m}{\rho}$

Applying the values to calculate the volume as:-

$V=\frac{460.0\ g}{0.789\ g/mL}=583.02\ mL$

The volume is 583.02 mL.

3 0

4 years ago

Mechanically weathered rock is broken down into smaller _________________________. (four word phrase)

scoundrel [369]

Weathering because Weathering is the process where rock is dissolved, worn away or broken down into smaller and smaller pieces. There are mechanical, chemical and organic weatheringprocesses. Organic weathering happens when plants break up rocks with their growing roots or plant acids help dissolve rock.

5 0

3 years ago

Read 2 more answers

The graph below shows how solubility changes with temperature.

Otrada [13]

The two solutions that have similar solubilities at 40°C will be Na₂HAsO₄ and Na₂SO₄.

<h3>What is solubity ?</h3>

It is the ability of a solute to be dissolved, especially in water.

As the temperature increases the solubility of the gas generally decreases"

According to given information and graph attached as reference ;

Solubility of NaCl (sodium chloride) at 40°C is 36.3 grams.
Solubility of Na₂SO₄ (sodium sulfate) at 40°C is 48.8 grams.
Solubility of Na₂HAsO₄ (sodium arsenate dibasic) at 40°C is 48.9
grams.
Solubility of Ba(NO₃)₂ (barium nitrate) at 40°C is 14.1 grams.
Solubility of Ce₂(SO₄)₃·9H₂O (ceasium sulfate nonahydrate) at 40°C is 6.2 grams.

Lear more about solubility here ;

brainly.com/question/19221092

#SPJ1

4 0

2 years ago

In what type of solution was the human cell placed

White raven [17]

Answer:

Isotonic Solution.

Explanation:

There are three types of solutions that can occur in your body based on solute concentration: isotonic, hypotonic, and hypertonic. An isotonic solution is one in which the concentration of solutes is the same both inside and outside of the cell.

4 0

4 years ago