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Wewaii [24]
3 years ago
7

Explain the difference between a positive ion and a negative ion.

Chemistry
1 answer:
GenaCL600 [577]3 years ago
7 0
1)An element forms a positive ion when it loses an electron called Cation, whereas it forms a negative ion when it gains an electron called Anion.
2) Cations have smaller atomic radii than that of an Anions.
3) Metals have the tendency to form Cations by losing an electron, while non metals have tendency to form Anions by gaining an electron.
4) etc
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PLEASE HELP ME WITH MY CHEM TEST
fgiga [73]

Answer:

8. 0.96

9. d

10b

11. 3

12 d

Explanation:

4 0
3 years ago
For each row in the table below, decide whether the pair of elements will form a molecular or ionic compound. If they will, then
Olin [163]

Answer:

\begin{array}{cccll}\textbf{Element 1} & \textbf{ Element 2} &\textbf{Compound?} &\textbf{Formula} &\textbf{Type}\\\text{Ar}&\text{Xe} &\text{No} &\text{None}&\text{Neither}\\\text{F}& \text{Cs} &\text{Yes} &\text{CsF} &\text{Ionic}\\\text{N} &\text{Br} &\text{Yes} & \text{NBr}_{3}&\text{molecular} \\\end{array}

Explanation:

You look at the type of atom and their electronegativity difference.

If ΔEN <1.6, covalent; if ΔEN >1.6, ionic

Ar/Xe: Noble gases; no reaction

F/Cs: Non-metal + metal; ΔEN = |3.98 – 0.79| = 3.19; Ionic

N/Br: Two nonmetals; ΔEN = |3.04 - 2.98| = 0.

4 0
3 years ago
Write the formula and calculate the molecular mass of
Reika [66]

The molecular formula is the sum of the atomic masses of all atoms in the molecule.

The formula of Soda Ash:

Na₂CO₃ is also known as Sodium Carbonate.

The molecular mass of Soda Ash is

(2×Na)+(1×C)+(3×O)=106g/mol

The formula of Baking Soda:

NaHCO₃ is also known as Sodium bicarbonate.

The molecular mass of Baking Soda is

(1×Na)+(1×H)+(1×C)+(3×O)=84g/mol

The formula of Lime Stone:

CaCO₃ is also known as Calcium carbonate.

The molecular mass of Lime Stone:

(1×Ca)+(1×H)+(1×C)+(3×O)=100g/mol

The formula of Ethanol:

C₂H₅OH is the formula of ethanol.

The molecular mass of Ethanol:

(2×C)+(6×H)+(1×O)=46g/mol

The formula of Common Salt:

NaCl is also known as Sodium chloride.

The molecular mass of Common Salt:

(1×Na)+(1×Cl)=58.5g/mol

Learn more about chemical formulas here:

brainly.com/question/26694427

#SPJ10

7 0
2 years ago
Human blood has a pH of 7.4. A urine test
Ostrovityanka [42]

Answer:

the difference between blood and urine is it is red, it is yellow, it has a ph of 7.4 and it has a ph of 4.6

4 0
3 years ago
Often express in psi, pressure is the term for force per unit of
taurus [48]

Answer:

Surface area

Explanation:

psi =  pound square inch

Often expres in psi, pressure s the term for force per unit of surface area.

8 0
2 years ago
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