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snow_lady [41]
4 years ago
10

Distinguish between atom molecules, and ions

Chemistry
1 answer:
NNADVOKAT [17]4 years ago
7 0

Explanation:

Atoms are the smallest unit of matter that can't be broken down chemically. Molecules are groups of two or more atoms that are chemically bonded. Ions are atoms or molecules that have gained or lost one or more of their valence electrons and therefore have a net positive or negative charge.

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If there are 10 navy beans,3 pinto beans,and 17 lentils in a container,what is the percent composition of the container by bean?
Stells [14]

The percent abundance in the container by bean will be 43.33 %  if there are 10 navy beans, 3 pinto beans, and 17 lentils in a container

<h3>What is Percentage composition ?</h3>

The percentage composition of a given compound is defined as the ratio of the amount of each element to the total amount of individual elements present in the compound multiplied by 100.

% composition by bean = number of beans / total number of objects in container x 100

  • Total object = 10 ( navy beans) + 3 (pinto beans) + 17 ( lentils) = 30 objects
  • Total beans = 10 ( navy beans) + 3 (pinto beans) = 13 beans

hence ;

  • % composition by beans = 13/30 x 100 = 43.33 %

Therefore, the percent composition of the container by bean is 43.33 %

Learn more about Percentage composition here ;

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7 0
2 years ago
The dating of geological formations is an example of a beneficial use of
Nitella [24]
The answer is (4). You may recall the term "radiometric dating," which refers to the dating of old artifacts by measuring proportions of certain radioactive isotopes they contain and making calculations based on their estimated half-lives. Geological formations are dated in this way.
3 0
3 years ago
i need help in chemistry i will cash app money just please send me ur number i am going to fail my class
ohaa [14]

Answer:

Woah don't cash app whats the question

7 0
3 years ago
2.<br> Why does<br> a chemical equation<br> need to<br> be balanced?
arlik [135]

<em>Answer:</em>

<em>Chemical equations must be balanced to satisfy the law of conservation of matter, that states that matter cannot be produced or destroyed in a closed system. The law of conservation of mass governs the balancing of a chemical equation.</em>

Explanation:

7 0
3 years ago
.The vapor pressure of a volatile liquid can be determined by slowly bubbling a known volume of gas through it at a known temper
Elis [28]

Explanation:

It is given that the initial mass of benznene is 7.9286 g

Mass of benzene left = 5.9987 g

So, mass of benzene with which gas get saturated will be calculated as follows.

               = 7.9286 g  - 5.9987 g  = 1.9299 g

Therefore, moles of benzene with which gas get saturated = \frac{mass}{ molar mass}

                = \frac{1.9299 g}{78.112 g/mol}

                = 0.0247 moles

Temperature = 27.3^{o}C = 27.3 + 273.15 = 300.45 K

Volume = 5.01 L

So, according to ideal gas equation PV = nRT

Putting the given values into the ideal gas equation as follows.

                       PV = nRT

           P \times 5.01 L = 0.0247 mol \times 62.36 torr-liter/mol K \times 300.45 K

                   P = \frac{462.781 torr-liter}{5.01 L}

                      = 92.371 torr

Hence, we can conclude that vapor pressure of benzene is 92.371 torr.

8 0
3 years ago
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