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3 years ago

8

Can someone help me plz

1 answer:

Alexus [3.1K]3 years ago

4 0

Answer:

Explanation

There is a direct proportional relationship between mass and volume of water. As volume of water increases, the mass of water increases as well.

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Behavior (defense mechanisms)definition

Gekata [30.6K]

A variety of usually unconscious mental processes used to protect oneself from shame, anxiety, loss of self-esteem, conflict, or other unacceptable feelings or thoughts, and including behaviors<span> such as repression, projection, denial, and rationalization.

(google)</span>

7 0

3 years ago

Earth is currently 150 million km away from the Sun. If Earth was 200 million km away from the Sun, why would it no longer be ab

timurjin [86]

Answer:

The temperature would be too cold

Explanation:

4 0

3 years ago

Consider the following reaction: NaHCO3 + HC2H3O2 → NaC2H3O2 + H2O + CO2 How many g of CO2 would be produced from the complete r

Alenkasestr [34]

<h2>1.25 g of $CO_2$ would be produced from the complete reaction of 25 mL of 0.833 mol/L $HC_3H_3O_2$ with excess $NaHCO_3$ </h2>

Explanation:

To calculate the number of moles for given molarity, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Moles of solute}\times 1000}{\text{Volume of solution (in L)}}$

$0.833M=\frac{\text{Moles of} HC_3H_3O_2\times 1000}{25ml}\\\\\text{Moles of} HC_3H_3O_2 =\frac{0.833mol/L\times 25}{1000}=0.0208mol$

$NaHCO_3+HC_2H_3O_2\rightarrow NaC_2H_3O_2+H_2O+CO_2$

According to stoichiometry:

1 mole of $HC_2H_3O_2$ will give = 1 mole of $CO_2$

0.0208 moles of $HC_2H_3O_2$ will give = $\frac{1}{1}\times 0.0208=0.0208 moles$ of $CO_2$

Mass of $HC_2H_3O_2=moles\times {\text {molar mass}}=0.0208\times 60g/mol=1.25g$

Thus 1.25 g of $CO_2$ would be produced from the complete reaction of 25 mL of 0.833 mol/L $HC_3H_3O_2$ with excess $NaHCO_3$

Learn more about molarity

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5 0

3 years ago

_ S8 +_02 +_ SO3

BigorU [14]

My educated guess should be the 3rd one

3 0

3 years ago

The total amount of energy in an object is called __________ energy.

allochka39001 [22]

The answer should be D) electrical

4 0

3 years ago

Read 2 more answers