You can conclude that your substance is a solid because of the slow moving particles and their being little space for those particles to be moving around.
Answer:
Best regards.
Explanation:
Hello,
In this case, we relate the heat, mass, heat capacity and temperature when a thermal change is carried out as shown below:
Now, for the given data, we compute the absorbed heat (due to the temperature increase) as follows:
Best regards.
Answer:
Calcium
Explanation:
is a silver-gray metal which takes its name from the Latin word calx, which means lime. It is the fifth most abundant element in the earth's crust and is widely distributed as limestone (CaCO3), quicklime (CaO) and calcium fluoride.
N=6.98*10²⁴
Nₐ=6.022*10²³ mol⁻¹
n(Mg)=N/Nₐ
m(Mg)=n(Mg)M(Mg)=M(Mg)N/Nₐ
m(Mg)=24.3g/mol*6.98*10²⁴/(6.022*10²³mol⁻¹)=281.7 g
