Answer:
Explanation:
She would have about 21,000 back
For part 1, just copy them off of the periodic table. For example, element 1 is Hydrogen, and its symbol is H
Elements on the left usually lose electrons and elements on the right tend to gain them. Noble gases have no charge.
Answer:
1.16 mol
Explanation:
Given data:
Mass in gram Mg(OH)₂ = 68 g
Number of moles of Mg(OH)₂ = ?
Solution:
Formula:
Number of moles = mass/molar mass
Molar mass of Mg(OH)₂ = 58.32 g/mol
By putting values,
Number of moles = 68 g/ 58.32 g/mol
Number of moles = 1.16 mol
Answer:
The answer should be Sodium chloride
When two electrons are added to chlorine has, Cl2, each atom of Cl will receive one electron. Hence, the atoms becomes ions having a negative charge, Cl-
<h3>Ions</h3>
Ions are atoms or group of atoms possessing an electrical charge which may be positive or negative.
Negatively charged ions are formed when atoms accept or gain electrons. The negative charge is because there are more electrons than protons in the atom.
Negatively charged ions are usually formed by non-metals. For example, chlorine gas accepts two electrons to become 2 Cl-
Cl2 + 2e- ----> 2 Cl-
Therefore, when two electrons are added to chlorine has, Cl2, each atom of Cl will receive one electron. Hence, the atoms becomes ions having a negative charge, Cl-
Learn more about negative ions at: brainly.com/question/1046561