3 years ago

What are chemical properties of acids and bases?

1 answer:

3 0

Taste: sour (vinegar)
base: bitter (baking soda)

smell: frequently burns nose
base: usually no smell (except NH3)

texture: sticky
base: slippery

reactivity: frequently react with metals to form H2
base: react with many oils and fats

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One gram of an acid, HA of unknown molecular mass is dissolved in water and 22.72 cm3 of 0.60 M sodium hydroxide solution added

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3 years ago

Consider an ion with the symbol X2+ formed from a representative element. (5.2, 5.3)a. What is the group number of the element?b

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Answer:

a) the element belongs to group 2

b) see image attached

c) Magnesium

d) X3N2

Explanation:

Any ion with the formula X^2+ was derived from group 2 elements. The group two element found in period 3 is magnesium alone.

Since the nitride ion has a valency of -3 and X^2+ has a valency of +2 , then a compound formed between X^2+ and the nitride ion will have the formula X3N2.