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3 years ago

How is energy causing motion or creating a change in this image? (2 points)

Chemistry

2 answers:

Angelina_Jolie [31]3 years ago

8 0

Answer:

Energy from the sun allows the plant to grow and make its own food.

Explanation:

From this image, we clearly see the leaves exposed to sun which supplies solar energy to the plant.

Plants are capable of producing their food from inorganic chemical sources.
In the process of photosynthesis, plants takes carbon dioxide and water in the presence of sunlight to manufacture their own food.
The food provides energy that allows the plant to grow.

anzhelika [568]3 years ago

7 0

Answer:

Energy from the sun allows the plant to grow and make its own food

Explanation:

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Use the following equation to answer the questions below:

Gala2k [10]

Explanation:

The equation of the reaction is given as;

Be + 2HCl → BeCl2 + H2

What is the mass of beryllium required to produce 25.0g of beryllium chloride?

1 mol of Be produces 1 mol of BeCl2

Converting to mass;

Mass = Molar mass * Number of moles

9.01g of Be produces 79.92g of BeCl2

xg of Be produces 25g of BeCl2

Solving for x;

x = 25 * 9.01 / 79.92

x = 2.82 g

What is the mass of hydrochloric acid required to produce 25.0g of beryllium chloride? g

Converting 25.0g of beryllium chloride to moles;

Number of moles = Mass / Molar mass

Number of moles = 25 / 79.92 = 0.3128 mol

2 mol of HCl produces 1 mol of BeCl2

x mol of HCl would produce 0.3128 mol of BeCl2

solving for x;

x = 0.3128 * 2 = 0.6256 mol

Converting to mass;

Mass = 0.6256 * 36.5 = 22.83 g

What is the mass of hydrogen gas produced when 25.0g of beryllium chloride is also produced? g

25g of BeCl2 = 0.3128 mol of BeCl2

From the equation;

1 mol of H2 is produced alongside 1 mol of BeCl2

This means;

0.3128 mol of H2 would also be produced alongside 0.3128 mol of BeCl2

Mass = Number of moles * Molar mass

Mass = 0.3128mol * 2.0159 g/mol = 0.6306 g

3 0

3 years ago

g Gaseous methane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 0.96 g of methane

galben [10]

Answer: 2.64 g of carbon dioxide that could be produced by the chemical reaction.

Explanation:

To calculate the moles :

$\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}$

$\text{Moles of} CH_4=\frac{0.96g}{16g/mol}=0.06moles$

$\text{Moles of} O_2=\frac{6.37}{32}=0.20moles$

$CH_4(g)+2O_2(g)\rightarrow CO_2(g)+2H_2O(g)$

According to stoichiometry :

1 mole of $CH_4$ require = 2 moles of $O_2$

Thus 0.06 moles of $CH_4$ will require= $\frac{2}{1}\times 0.06=0.12moles$ of $O_2$

Thus $CH_4$ is the limiting reagent as it limits the formation of product and $O_2$ is the excess reagent.

As 1 moles of $CH_4$ give = 1 mole of $CO_2$

Thus 0.06 moles of $CH_4$ give = $\frac{1}{1}\times 0.06=0.06moles$ of $CO_2$

Mass of $CO_2=moles\times {\text {Molar mass}}=0.06moles\times 44g/mol=2.64g$

Thus 2.64 g of carbon dioxide that could be produced by the chemical reaction.

7 0

4 years ago

The number of mgs of Cl- in a 750 mL bottle of mineral water is 21

love history [14]

Answer:

For instance, one liter of Mendocino mineral water contains more than 30% of the Ca2+ and Mg2+ DRIs in adult women, and 1 liter of Vichy .

Explanation:

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3 0

3 years ago

To the nearest gram, what is the mass of of one spoonfull of sugar? g

Vaselesa [24]

Answer:

the mass of one spoonful of sugar to nearest gram is 10g

4 0

3 years ago

What happens when you mix acid and base?

kap26 [50]

Acids are chemicals with a pH less than 7 that can donate a proton or H+ ion in a reaction. Bases have a pH greater than 7 and can accept a proton or produce an OH- ion in a reaction. If you mix equal amounts of a strong acid and a strong base, the two chemicals essentially cancel each other out and produce a salt and water. Mixing equal amounts of a strong acid with a strong base also produces a neutral pH (pH = 7) solution. This is called a neauturization and looks like
HA + BOH → BA + H2O + heat

6 0

3 years ago

Read 2 more answers