The temperature of the room is 75 degree F. What is its temperature in Celsius 2

Question

The temperature of the room is 75 degree F. What is its temperature in Celsius 24 degree C 27 degree C 30 degree C 43 degree C 59 degree C Which one of the following elements is an alkali metal? Al Ag Au Pb Rb A good example of an ionic compound is water sugar dry ice sodium chloride natural gas The symbols for a metal, a non-metal and a noble gas in that order are Ag, Ga, Xe Ce, Ge, Ne Ca, Sn, Kr Ba, P, Ar P, Pb, Kr Which of the following is a chemical property of water? its density is 1.000 g/cm^3 at 4 degree C its melting point is 0 degree C it forms bubbles when calcium is added it causes light rays to bend its heat of fusion is 6020 J/mol Which of the following is an example of a chemical change? water boiling ice melting natural gas burning iodine vaporizing dry ice subliming of the masses 86.30 g, 0.0863 kg and 8.630 times 10^5 mg, which (if any) is the large 86.30 g 0.0863 kg 8.630 times 10^5 mg they are the same two are the same, one is smaller

Explanation / Answer

8.

relation between ºC to ºF

ºC = ºF - 32 / 1.8

he has given ºF value put that one in this equation

answer will be 23.88 ºC = 24 ºC

option a is correct answer

9.

elements whichg are present in first group is called alkali metals

Rb is the first group

option e is the correct answer

10

NaCl is the best exaple for the ionic compound

option D is the correct answer

remaining all options are examples for the covelent compounds

11

option D is having the correct order for

metal, non metal and noble gas

12

option C is the correcty answer

it is the chemical property

13

option C is the correct answer

14

option D is the correct answer

Ca + H2O <==> Ca(OH)2 + H2

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