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kramer
3 years ago
15

Of the well-characterized elements of group 7A, which would exhibit the following properties?

Chemistry
1 answer:
Nadusha1986 [10]3 years ago
4 0

Answer: it reacts with the alkali metals (M) to form a salt MX, where X is the halogen.

Explanation: Group 7A elements are halogen and they react with alkali metals like Sodium or potassium to form a salt like NaCl

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Answer:

44.01amu?

Explanation:

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In a chemical reaction, water decomposes to form hydrogen and oxygen. What is the correct term for the water?
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Which pair of substances would most likely result in the production of a gas when reacting with an acid?
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Answer: metal and carbonate

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1. When metal is treated with an acid such as HCl, if the metal is more reactive than hydrogen displaces hydrogen from its salt solution and thus produce zinc chloride and hydrogen gas.

M+xHCl(aq)\rightarrow MCl_x(aq)+xH_2(g)

2. When carbonates are treated with acid, double displacement takes place ad carbon dioxide is released as a gas.

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Caffeine, a stimulant found in coffee and soda, has the following elemental composition: 49.48% carbon, 5.19% hydrogen, 16.48% o
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= 4.123 : 5.19 : 1.03 : 2.06

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