Answer:
Explanation:
First, we must find the density of the unknown metal.
Density is found by dividing the mass by the volume.
The mass of the metal is 89 grams and the density is 10 cubic centimeters.
Substitute the values into the formula.
Divide.
Now we know the density and can identify the unknown metal.
- Nickel: 8.9 g/cm³
- Silver: 10.5 g/cm³
- Lead: 11.35 g/cm³
- Mercury: 13.55 g/cm³
The density matches nickel's density. Therefore, this metal must be <u>nickel.</u>
<span><span>The tendency of a less dense substance to float in a more dense liquid is called</span> buoyancy. Ice floats in water because it is less dense than water. Hope this helps!!</span>
A table would show the exact values at certain times, while some kinds of graphs only show approximate values but for the “slight changes” it is best to have the exact numbers.
Answer:
Equation 3
Explanation:
It combines all the gas laws and it is called the ideal gas equation
First, assume ideal gas behavior for simplicity. To simplify even further, let's use the formula for special cases. In cases where the system is at constant volume,we will use the Gay-Lussac's Law written below:
P₁/T₁ = P₂/T₂
Note that T should be absolute. Let's solve for T₂.
1 atm/25+273 K = 0.5 atm/T₂+273 K
Solving for T₂,
<em>T₂ = 124°C</em>