Because if we didnt have chemical reactions we would have life because we use chemical reactions to live
The density of the metal is 7.11 g/mL.
<h3>What is the density of the metal?</h3>
The term density of the metal is defined as the ratio of the mass to the volume of the metal. The volume of the metal was obtained by the displacement method. The volume of water that was displaced is the volume of the metal.
Hence;
Mass of the metal= 56.188g - 1.429g = 54.759 g
Volume of the metal = 33.6mL - 26mL = 7.70 mL
Density of the metal = 54.759 g/ 7.70 mL
= 7.11 g/mL
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Yes, it is correct...........
Answer:
Precautions must be taken to remove all possibilities of fire or explosion.
Explanation:
Since Hydrogen is a very flamable or combustible gas, it is neccesary to avoid smoking, remove sourcs of sparks, flames or heat and hydrogen should be used in a well ventilated area.
We will use Ideal gas equation.
PV=nRT
where
P= pressure(in atm)=5.82atm
V=Volume=?
n= moles of gases=0.682
R = gas constant= 0.0821L atm / mol K
T = temperature= 68.2 C= 68.2 + 273.15 = 341.35 K
V= nRT/ P= 0.682 X 0.0821 X 341.35/ 5.82
V= 3.284 L.
