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Varvara68 [4.7K]
3 years ago
7

Explain how elements can form compounds.

Chemistry
1 answer:
Rainbow [258]3 years ago
3 0

Answer:

by chemical reactions

Explanation:

by chemical reactions

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List the following elements in order of increasing number of valence electrons: C, CI, As, Na, He.
lorasvet [3.4K]
B is the correct answer
4 0
3 years ago
A 30ml sample of a liquid has a mass of 50 grams. What is the density of the liquid?
mash [69]

Answer:

<h2>Density = 1.67 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

Density =  \frac{mass}{volume}

From the question

mass = 50 g

volume = 30 mL

Substitute the values into the above formula and solve for the density

That's

Density =  \frac{50}{30}  \\  =  \frac{5}{3}  \\  = 1.66666...

Wr have the final answer as

<h3>Density = 1.67 g/mL</h3>

Hope this helps you

5 0
3 years ago
What function does the central vacuole in a plant cell performs
garri49 [273]
It functions to maintain the proper pressure within the plant cells to provide structure
5 0
2 years ago
Which of the following elements is the smallest?
Oliga [24]

Answer:

Explanation:

The atomic radius of elements are used to estimate the sizes of elements. The atomic radius is taken as half of the inter-nuclear distance between two covalently bonded atoms of non-metallic elements or half of the distance between two nuclei in the solid state of metals.

To solve this problem we will obtain the atomic radius values of the given elements from a standard atomic radius table;

          Si          111 pm

           P          98 pm

          Cl          79 pm

            S           87pm

pm = picometer

We see that chlorine has the least atomic radius

7 0
3 years ago
Read 2 more answers
How many grams is 2.50 moles of Beryllium
I am Lyosha [343]

Answer:

22.530455

Explanation:

4 0
2 years ago
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