All categories

3 years ago

Question

Chemistry

1 answer:

Liula [17]3 years ago

8 0

Answer:

It’s caused by a disturbance.

It carries energy.

Explanation:

A wave is a disturbance that transmits energy from one point to another. It does no necessarily carry the particles or matter of the medium.

Waves usually carries energy. It is this energy they use in creating disturbances.

Not all waves carries matter; a good example is electromagnetic waves. Also, electromagnetic waves do not require a medium for propagation.

You might be interested in

Need help please help me

Mademuasel [1]

Answer:

The answer is most likely compound a

Explanation:

Covalent compounds have low melting and boiling points and conduct electricity poorly

8 0

3 years ago

Helppppppppppppppppppppppppp

sergey [27]

Answer:

lose 1 2+

Explanation:

I honestly don't know

8 0

3 years ago

What is the chemical reaction for respiration

Verdich [7]

Respiration is the chemical process by which organic compounds release energy. The compounds change into different ones by exergonic reactions. The hydrolysis of adenosine triphosphate (ATP) to adenosine diphosphate (ADP) and phosphoric acid (Pi) releases energy (it is an exergonic reaction).

5 0

3 years ago

What is responsible for storing urine

SpyIntel [72]

The bladder is responsible.

5 0

3 years ago

Read 2 more answers

When 22.0 g NaCl and 21.0 g H, SO4 are mixed and react according to the equation below.

alexdok [17]

Taking into account the reaction stoichiometry and limiting reagent, 26.72 grams of Na₂SO₄ are formed when 22 grams of NaOH reacts with 21 grams of H₂SO₄.

<h3>Reaction stoichiometry</h3>

In first place, the balanced reaction is:

2 NaCl + H₂SO₄ → Na₂SO₄ + 2 HCI

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

NaCl: 2 moles
H₂SO₄: 1 mole
Na₂SO₄: 1 mole
HCI: 2 moles

The molar mass of the compounds is:

NaCl: 58.45 g/mole
H₂SO₄: 98 g/mole
Na₂SO₄: 142 g/mole
HCI: 36.45 g/mole

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

NaCl: 2 moles ×58.45 g/mole= 116.9 grams

H₂SO₄: 1 mole ×98 g/mole= 98 grams

Na₂SO₄: 1 mole ×142 g/mole= 142 grams

HCI: 2 moles ×36.45 g/mole= 72.9 grams

<h3>Limiting reagent</h3>

The limiting reagent is one that is consumed first in its entirety, determining the amount of product in the reaction. When the limiting reagent is finished, the chemical reaction will stop.

<h3>Limiting reagent in this reaction</h3>

To determine the limiting reagent, it is possible to use a simple rule of three as follows: if by stoichiometry 116.2 grams of NaCl reacts with 98 grams of H₂SO₄, 22 grams of NaCl reacts with how much moles of H₂SO₄?

$mass of H_{2} SO_{4} =\frac{22 grams of NaClx98 grams of H_{2} SO_{4} }{116.2 grams of NaCl}$

<u><em>mass of H₂SO₄= 18.55 grams</em></u>

But 18.55 grams of H₂SO₄ are not available, 21 grams are available. Since you have less moles than you need to react with 22 grams of NaCl, H₂SO₄ will be the limiting reagent.

<h3>Mass of Na₂SO₄ produced</h3>

The following rules of three can be applied, considering the limiting reagent: if by reaction stoichiometry 116.9 grams of NaCl form 142 grams of Na₂SO₄, 22 grams of NaCl form how much mass of Na₂SO₄?

$mass of Na_{2}S O_{4} =\frac{22 grams of NaClx142 grams of Na_{2}S O_{4}}{116.9 grams of NaCl}$

<u><em>mass of Na₂SO₄= 26.72 grams</em></u>

Then, 26.72 grams of Na₂SO₄ are formed when 22 grams of NaOH reacts with 21 grams of H₂SO₄. The correct answer is first option.

Learn more about the reaction stoichiometry:

<u>brainly.com/question/24741074</u>

<u>brainly.com/question/24653699</u>

6 0

2 years ago