Answer with Explanation:
Density of copper(Cu)=
Density of zinc(Zn)=
Atomic mass of copper=
Atomic mass of zinc=65.38 g
We know that
Volume=
Using the formula
Volume of copper=
Volume of zinc=
Volume is inversely proportional to the density.
Pre -1982 penny made by copper and post-1982 penny made by zinc.
Therefore, volume of post-1982 penny is greater than the volume of pre-1982 penny because density of zinc is less than the density of copper.
Answer:
I'm sorry i do not speak spanish , so i dont understand.
Explanation:
do you know english
Answer:
Explanation:
The amount of Kinetic energy is dependent on the mass and speed of an object. Kinetic energy is the energy of motion. If we know the mass of an object and its velocity we can determine the amount of kinetic energy..
There are 6 Carbon atoms and 14 Hydrogen which makes it a Hexane
Answer:
Silicon forms four covalent bonds with hydrogen. The formula of the compound is SiH4. Germanium forms four covalent bonds with chlorine, the formula of the compound is GeCl4
Explanation:
The outermost shell of group 14 elements contains four electrons, which can combine with four other atoms having one unpaired electron in their outermost shell to form four electron pairs or a complete octet as required by the octet rule.