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lidiya [134]
4 years ago
10

State the Periodic Law. Why is it so important in the study of chemistry?

Chemistry
1 answer:
gayaneshka [121]4 years ago
8 0

Answer:

Summary. To summarize, the periodic table is important because it is organized to provide a great deal of information about elements and how they relate to one another in one easy-to-use reference. The table can be used to predict the properties of elements, even those that have not yet been discovered.

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What is the relationship between the electronic configuration, group and period numbers?
Margaret [11]

Answer: the number of circles in the electronic configuration of an element is represented in the periodic table as the period number that element is situated in. the number of electrons in the outermost shell of an element is represented in the periodic table as the group number that element is situated in.

Explanation: hope it helps :)

6 0
3 years ago
A chemist determines by measurements that 0.0200 moles of chlorine gas participate in a chemical reaction. Calculate the mass of
Schach [20]

Answer:

1.4200 g

Explanation:

The chlorine gas has a molecular formula Cl2. In table periodic, the molar mass of one atom of chlorine is 35.5 g/mol, so the molar mass of Cl2 is 71 g/mol.

Molar mass, mass and number of moles are related by the equation below:

n = \frac{m}{MM}

Where n is the number of moles, m is the mass, and MM is the molar mass of the compound.

So, for 0.0200 moles of Cl2 produced:

0.0200 = \frac{m}{71}

m = 71x0.0200

m = 1.4200

8 0
4 years ago
What is the mass in grams of 366mL of ethylene glycol
pshichka [43]

Answer:

m=406.26g

Explanation:

Hello,

In this case, since the density is defined as the degree of compactness of a substance and it mathematically defined as the ratio of the mass and volume:

\rho = \frac{m}{V}

By knowing that its density is 1.11 g/mL, the mass in 366 mL is:

m=\rho V=366mL*1.11\frac{g}{mL}\\ \\m=406.26g

Regards.

6 0
4 years ago
Which is the right answer
Anettt [7]

Answer:

NH3

Explanation:

there is one nitrogen and 3 hydrogen

8 0
3 years ago
Which of the following is an example of how prosthetics engineering differs
Tcecarenko [31]

Answer:

A. Designing a device that is biologically compatible

Explanation:

4 0
3 years ago
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