<span>
</span>Basic Calcium Facts
Name: Calcium
Atomic Number: 20
Element Symbol: Ca
Group: 2
Period: 4
Block: s
Element Family: Alkaline Earth
Atomic Mass: 40.078(4)
Electron Configuration: [Ar]4s<span>2
</span>
Full: 1s22s22p63s23p64s2 (full)
Answer:
The correct option is FALSE
Explanation:
Mole ratio is the ratio of the number of moles of two compounds in a balanced chemical reaction. Number of moles of a compound in a chemical reaction is the number written before the compound.
For example, the mole ratio of Iron (Fe) and water (H₂O) in the equation below is 3:4
3Fe + 4H₂O ⇒ Fe₃O₄ + 4H₂
Thus, mole ratio does not compare subscripts of compounds.
C) 45 2 y=x -x - Tran khoaung 2;+
<u>Answer:</u>
<em>We know water can exist in all three states be it solid or liquid or gas the only difference between the three states is the temperature at which they exist. </em>
<u>Explanation:</u>
When the temperature moves towards colder region the state of water changes to solid while when the temperature moves to water region the state of water changes to gas.
This little experiment can be done with the help of ice at room temperature. The more ice is applied to water it will turn to ice but removal of eyes in room temperature. And will make it turn to water and complete removal of eyes with application of heat would make it into vapour.