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ludmilkaskok [199]
3 years ago
8

Which group served as the control in this investigation​

Chemistry
1 answer:
ozzi3 years ago
7 0

Answer:

What is the investigation?

Explanation:

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True or false, water boils at 100°c
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This is true

Explanation:

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Which of the following compounds contains both ionic and covalent bonds? KOH N2O5 CH3OH Na2O
dusya [7]

Answer: a.KOH

Potassium hydroxide is an ionic compound where the K+ is the cation and OH−is the anion. At the same time, the compound also contains a covalent bond since the anion, OH−is formed from electron sharing between the O and H atoms.

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Explanation:

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3 years ago
Solid aluminum hydroxide reacts with a solution of hydrobromic acid. Write a balanced molecular equation and a balanced net ioni
lora16 [44]

Answer:

Al(OH)_{3}(s)+3H^{+}(aq.)+3Br^{-}(aq.)\rightarrow Al^{3+}(aq.)+3Br^{-}(aq.)+3H_{2}O(l)

Al(OH)_{3}(s)+3H^{+}(aq.)\rightarrow Al^{3+}(aq.)+3H_{2}O(l)

Explanation:

Aluminium hydroxide (Al(OH)_{3}) is a base and hydrobromic acid (HBr) is a strong acid.

Hence an acid-base reaction occurs between Al(OH)_{3} and HBr

Balanced molecular equation:

Al(OH)_{3}(s)+3HBr(aq.)\rightarrow AlBr_{3}(aq.)+3H_{2}O(l)

Balanced total ionic equation:

Al(OH)_{3}(s)+3H^{+}(aq.)+3Br^{-}(aq.)\rightarrow Al^{3+}(aq.)+3Br^{-}(aq.)+3H_{2}O(l)

Balanced net ionic equation:

Al(OH)_{3}(s)+3H^{+}(aq.)\rightarrow Al^{3+}(aq.)+3H_{2}O(l)

(net ionic equation is written by removing common ions present in both side of total ionic equation)

5 0
3 years ago
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