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3 years ago

7

Looking at the periodic table, which group consists of elements that will not form an acid when combine with hydrogen?

2 answers:

PSYCHO15rus [73]3 years ago

5 0

Looking at the periodic table, which group consists of elements that will not form an acid when combine with hydrogen?

Sodium group - Reacts vigorously with water.

Magnesium group - Shiny, silvery, soft metal.

Fluorine group - Forms an acid in solution when combined with hydrogen.

Xenon group - Colorless and odorless gas.

A) radon, neon, calcium

B) neon, bromine, barium

C) beryllium, iodine, krypton

D) lithium, potassium, fluorine

The answer is A) radon, neon, calcium

Rainbow [258]3 years ago

3 0

Group 8 nonmetals; <span>He, Ne, Ar, Kr, Xe, and Rn</span>

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3 years ago

When 55.0 grams of metal at 75.0°C is added to 100. grams of water at 15.0°C, the temperature of the water rises to 18.7°C. Assu

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The specific heat of the metal is 0,50 J/gºC

Explanation:

Assume that no heat is lost to the surroundings

(Q = m . C . ΔT)metal + (Q = m . C . ΔT)water = 0

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55g . C . (18,7ºC - 75ºC) + 100g . 4,184 J/g·°C . (18,7ºC - 15ºC) = 0

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