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3 years ago

How is beryllium (Be) similar to calcium (Ca)?

Chemistry

2 answers:

Stolb23 [73]3 years ago

8 0

Explanation:

beryllium, calcium, strontium, barium, and radium; they are in the same group of table.

alukav5142 [94]3 years ago

8 0

Answer:

Both Beryllium and Calcium have 2 valence electrons, i.e. in ther electronic configuration there are 2 electrons remaining in the outermost shell. Thus their valencies are also 2.

Electronic Configurations:

Beryllium (4) : - [2, 2]

Calcium (20) : [2, 8, 8, 2]

Hope it helps

Thank you for the question

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Edit

a. both are very reactive

b. both react readily with elements in group 1

c. both rarely combine with other elements

d. both are rare metals

(As per the suggestion of bvbfanforeverap5j54d)

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3 years ago

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2 years ago

12 G of carbon react with 16 G of oxygen how much carbon monoxide is formed

elena55 [62]

Answer:

28 g CO

Explanation:

First convert grams to moles.

1 mole C = 12.011 g (I'm just going to round to 12 for the sake of this problem)

12 g C • $\frac{1 mol C}{12 g C}$ = 1 mol C

1 mol O = 15.996 g (I'm just going to round to 16)

16 g O • $\frac{1 mol O}{16 g O}$ = 1 mol O

So the unbalanced equation is:

$C + O_{2}$ -> $CO$ (the oxygen has a 2 subscript because it is part of HONClBrIF meaning when not in a compound these elements appear in pairs - called diatomic elements)

The balanced equation is:

$2 C + O_2$ -> $2 CO$

However, carbon is the limiting reactant in this equation and two moles cannot react because only 12 g (1 mole) are present. Therefore, use the equation

$C + \frac{1}{2} O_2$ -> $CO$ .

1 mole of CO is formed, therefore 12 g + 16 g = 28 g CO.

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3 years ago

How is beryllium (Be) similar to calcium (Ca)?​

How is beryllium (Be) similar to calcium (Ca)?