Gold has a melting point of 1064 degrees celsius and and a boiling point of 2700 degrees celsius at what temperature will gold become a liquid

The gold will become liquid at 1064°C.

Explanation:

Melting point is defined as the temperature at which solid state starts to change its phase into liquid state at constant temperature.

Boiling point is defined as the temperature at which liquid state starts starts to change its phase into gaseous state at constant temperature.

For the given gold substance:

Melting point is given as 1064°C and boiling point is given as 2700°C.

This substance will be in liquid state after its melting point which is 1064°C.

Hence, the gold will become liquid at 1064°C.

as given the equation is

2al + 6 hcl > 2 alcl3 + 3 h2(g)

as per equation two moles of aluminum reacts with six moles of hcl to give two moles of alcl3 and three moles of hydrogen gas

given: three moles of al are present and 7 moles of hcl

for three moles of aluminum nine moles of hcl will be required

however as 7 moles of hcl are present so the limiting reagent is hcl

hcl is going to decide the number of moles of product formed

when six moles of hcl are present = 3 moles of h2 are formed

when one mole of hcl is present == 3/6 mole sof h2 will be formed

when 7 moles of hcl are present = 3 x 7/ 6 moles of h2 will be formed = 3.5 moles of h2