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trapecia [35]
3 years ago
12

1 CHEM QUESTION PLEASE HELP What is meant by the phrase, “conservation of mass”?

Chemistry
1 answer:
Pavel [41]3 years ago
5 0
It is a principle that states that mass cannot be loss or gained in a chemical reaction.
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What is a group of electrons orbiting at roughly the same distance from the nucleus
Alex Ar [27]
A shell of electrons.
5 0
4 years ago
Commercial agriculture can often lead to water-quality problems. In one to two sentences, explain how two of those problems occu
anygoal [31]

Commercial agriculture can often lead to water-quality problems in the following ways:

  • The washing of fertilizers and pesticides into water bodies from farms.

<h3>What is water quality?</h3>

Water quality refers to the state of a water body that encompasses it's physical, chemical and biological characteristics.

The water quality of a water body is crucial to its suitability for domestic or drinking purpose.

Commercial agriculture greatly affects water quality in the following ways:

  • The washing of fertilizers and pesticides into water bodies from farms.

Learn more about water quality at: brainly.com/question/20848502

#SPJ1

4 0
2 years ago
Quick question: Are water molecules attracted to each other because of the polar nature of water?
Colt1911 [192]

Answer:

Because the opposite charge between them

Explanation:

4 0
3 years ago
A dehydration reaction starting with 3.8 g cyclohexanol produces 2.6 g cyclohexene. Calculate the theoretical yield for this rea
diamong [38]

Answer:

Theoretical yield of C6H10 = 3.2 g.

Explanation:

Defining Theoretical yield as the quantity of product obtained from the complete conversion of the limiting reactant in a chemical reaction. It can be expressed as grams or moles.

Equation of the reaction

C6H11OH --> C6H10 + H2O

Moles of C6H11OH:

Molar mass of C6H110H = (12*6) + (1*12) + 16

= 100 g/mol

Mass of C6H10 = 3.8 g

number of moles = mass/molar mass

=3.8/100

= 0.038 mol.

Using stoichoimetry, 1 moles of C6H110H was dehydrated to form 1 mole of C6H10 and 1 mole of water.

Therefore, 0.038 moles of C6H10 was produced.

Mass of C6H10 = molar mass * number of moles

Molar mass of C6H10 = (12*6) + (1*10)

= 82 g/mol.

Mass = 82 * 0.038

= 3.116 g of C6H10.

Theoretical yield of C6H10 = 3.2 g

4 0
3 years ago
How many grams of KBr are contained in 150. mL of a 0.154 M solution of potassium bromide?
Lostsunrise [7]

Answer:

I think it is B

Explanation:

because the others don't look right

6 0
3 years ago
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