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julia-pushkina [17]
3 years ago
7

The periodic table below shows which elements are metals, nonmetals, and metalloids. the element with the chemical symbol ______

_ is a nonmetal.
a. al
b. na
c. h
d. k
Chemistry
1 answer:
aleksandr82 [10.1K]3 years ago
8 0
H.
represents hydrogen element. under non metal classification.

for others, you'll find them under metal element classification.
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The alkali metals all react with water. which is the most reactive metal?
kifflom [539]
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Quite frankly, you do not want Francium to react with water- that's a huge explosion on your hand.

8 0
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Classify each of these reactions. A single reaction may fit more than one classification. Ba ( ClO 3 ) 2 ⟶ BaCl 2 + 3 O 2 Ba(ClO
Lena [83]

Answer: a) Ba(ClO_3)_2\rightarrow BaCl_2+3O_2:  Decomposition

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Explanation:

Decomposition is a type of chemical reaction in which one reactant gives two or more than two products.

Ba(ClO_3)_2\rightarrow BaCl_2+3O_2

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NaNO_2+HCl\rightarrow NaCl+HNO_2

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3 years ago
0.00099989<br> 3 sig figs, scientific notation
mixas84 [53]
1.00*10^3
You’d need to lower the exponent because rounding to 3 sig figs changes the 9’s to - 1000. Keep the 0’s.
5 0
3 years ago
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creativ13 [48]

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zubka84 [21]

Answer:

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Explanation:

6 0
3 years ago
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