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viva [34]
2 years ago
14

Mass is measured in= a. Liters b. centimeters c. newtons d. kilograms

Chemistry
1 answer:
ale4655 [162]2 years ago
5 0
Mass is measured in kilograms.
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In air, a silver object can tarnish due to the reaction of silver with hydrogen sulfide, a gas found in the air as a result of c
cluponka [151]

Answer:

The coefficient of Ag is 2.

Explanation:

___Ag (s) + ___H₂S (g) ⇒ ___ Ag₂S (s) + ___ H₂(g)

The Law of Conservation of Matter is also called the law of conservation of mass or the Law of Lomonósov-Lavoisier. This law postulates that "the mass is not created or destroyed, only transformed." This means that the reagents interact with each other and form new products with physical and chemical properties different from those of the reagents because the atoms of the substances are ordered differently. But the amount of matter or mass before and after a transformation (chemical reaction) is always the same, that is, the quantities of the masses involved in a given reaction must be constant at all times, not changing in their proportions when the reaction ends.

In others words, the law of conservation of matter states that since no atom can be created or destroyed in a chemical reaction, the number of atoms that are present in the reagents has to be equal to the number of atoms present in the products.

Then, you must balance the chemical equation. For that, you must first look at the subscripts next to each atom to find the number of atoms in the equation. If the same atom appears in more than one molecule, you must add its amounts :

Left side: 1 Ag, 2 H and 1 S

Right side: 2 Ag, 2 H and 1 S

The coefficients located in front of each molecule indicate the amount of each molecule for the reaction. This coefficient can be modified to balance the equation, just as you should never alter the subscripts.

By multiplying the coefficient mentioned by the subscript, you get the amount of each element present in the reaction.  

You can see that the elements H and S are balanced because we have the same quantity on both sides of the reaction. Then you must balance the Ag, so the reaction is:

2 Ag (s) + 1 H₂S (g) ⇒ 1 Ag₂S (s) + 1 H₂(g)

Now you have:

Left side: 2 Ag, 2 H and 1 S

Right side: 2 Ag, 2 H and 1 S

So, you have the same amount of each element to both of the reaction and this is balanced.

Then, <u><em>the coefficient of Ag is 2.</em></u>

7 0
2 years ago
What is science......?​
den301095 [7]

\huge \underbrace \mathfrak \blue{Answer}

<u>Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe. The earliest roots of science can be traced to Ancient Egypt and Mesopotamia in around 3000 to 1200 BCE.</u>

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5 0
3 years ago
Read 2 more answers
What statement bets explain how deforestation affects organisms
kati45 [8]

Answer:

It increases the amount of carbon dioxide in the air, enhancing global warming.

Explanation:

When deforestation occurs, carbon dioxide ultimately gets released in the

surrounding environment, causing global warming to increase in proximity

and way. Thus, the answer is greatly supported with legitimate facts.

I hope this helped!!

~Penny

7 0
3 years ago
Which statement explains how commercial land use negatively impacts watersheds?
prisoha [69]

Answer:

Option B, Production of clothing items makes pollutants that contaminate the water.

Explanation:

Clothes manufacturing is a commercial activity. Most of the clothes, now days are made up of synthetic fibers and hence are non-degradable under normal scenarios.  

Textile and fabric industries use lot of water for washing and dyeing which ultimately is disposed of as waste water into the nearby water bodies. This leads to water pollution.  

Hence, option B is correct

7 0
3 years ago
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How many milliliters of 5.0M K2Cr2O7 solution must be diluted to prepare 250.0 mL of 0.37 M solution
creativ13 [48]
Hi, I am an AP chemistry student so I am confident this answer is correct.  The answer would be 3.38 L or 3380 mL
3 0
3 years ago
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