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GenaCL600 [577]
2 years ago
12

What type of bond holds the complementary bases together?.

Chemistry
1 answer:
olga55 [171]2 years ago
3 0

Answer:

hydrogen bonding

Explanation:

The two strands of DNA are held together by hydrogen bonds between complimentary nucleotides.

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Which statement is true about the compound ammonium sulfate [(NH4)2SO4] ?
BabaBlast [244]

Answer:

It is a salt of two polyatomic ammonium ions and one polyatomic sulfate ion

Explanation:

Ammonium Sulfate is an ionic compound formed by two polyatomic ions, Ammonium NH+4 and Sulfate SO−4 . ... Therefore, it will take two +1 ammonium ions to balance the one -2 sulfate ion. This will make the formula for Ammonium Sulfate (NH4)2SO4

4 0
3 years ago
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Alborosie

Answer:  See below

Explanation:

1.  a)  0.15 moles calcium carbonate  (15g/100g/mole)

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2 years ago
What controls the electrical properties of the atom? the valence electron is referred to as a __________ ? when silicon atoms co
Drupady [299]
<span>It is the valence orbit that controls the electrical properties of the atom. The valence electron is referred to as a "free electron.' Valence electrons have the highest energy of all electrons in an atom; they are also the most reactive, meaning they are usually the electrons involved in bonding. When silicon atoms combine to form a solid, they arrange themselves into an orderly pattern called a crystal.</span>
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3 years ago
What element has 81 protons in the nuclei of its atoms?
WITCHER [35]
Thallium has got 81 protons

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Which mixture is classified as a solution?
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