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3 years ago

In a chemical equation, what do the coefficients indicate?

Chemistry

2 answers:

just olya [345]3 years ago

8 0

The answer is D. a number preceding an elemental or molecular symbol.

example - <u>2</u>H2 + O2 -> <u>2</u>H2O

The underlined is the coefficient.

Mekhanik [1.2K]3 years ago

6 0

In a chemical equation coefficients indicate the number of molecules/atoms involved in the reaction.

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What is the number of moles in 10.62 L of H2S gas at STP?

Lina20 [59]

Answer:

0.474 moles

Explanation:

divide 10.62 by 22.4.

7 0

3 years ago

¿Cuál es el % m/m de una disolución en que hay disueltos 22 g de soluto en 44 g de disolvente?

Archy [21]

The question is as follows: What is the% m / m of a solution in which 22 g of solute are dissolved in 44 g of solvent?

Answer: The% m/m of a solution in which 22 g of solute are dissolved in 44 g of solvent is 50%.

Explanation:

Given: Mass of solute = 22 g

Mass of solvent = 44 g

The percentage m/m is calculated using the following formula.

$Mass percentage = \frac{mass of solute}{mass of solvent} \times 100$

Substitute the values into above formula as follows.

$Mass percentage = \frac{mass of solute}{mass of solvent} \times 100\\= \frac{22 g}{44 g} \times 100\\= 50 percent$

Thus, we can conclude that the% m/m of a solution in which 22 g of solute are dissolved in 44 g of solvent is 50%.

5 0

3 years ago

If the ribosomes of a cell were destroyed what effect would this most likely have on the cell

Serjik [45]

Cells will not able to produce proteins by translation as it's happens in ribosomes

8 0

3 years ago

Part 1: Cats falling out of windows

timurjin [86]

Answer:

A cat that falls out of the window even if it seems to be doing well, must urgently go to a veterinary clinic in order to be placed under surveillance for at least 24 to 72 hours

Explanation:

3 0

3 years ago

Most metals are solid at room temperature, malleable, ductile, good conductors of heat and electricity, and react in acids to pr

Evgen [1.6K]

Answer:

The answer to your question is: "react with acids to produce hydrogen gas"

Explanation:

Chemicals properties of matter: are properties that can be measured if there is a chemical change or chemical reaction.

Examples of chemical reactions:

Reactivity

Toxicity

Coordination number

Flammability

Of the properties listed, the only that implies a reaction is "react with acids to produce hydrogen gas"

7 0

3 years ago

Read 2 more answers