Need chemistry help Please

Question

Bromine is beneath chlorine in the Periodic Table. What is it more likely to have?

A) a lower boiling point

B) More protons

C) lower reactivity.

When the elements K, Li and Na react with water:

A) Which is the most vigorous?

B) Which is the least vigorous?

Compounds formed from metals in combination with non-metals such as chlorine conduct electricity when:

A) In solution

B) In solid form

C) Molten

Write a balanced symbol equation for the following reaction:

Sodium Chlorine = sodium chloride (REMEMBER to show the states of the reactants and products).

Please could you leave me a link that you think might help me with the last question. My textbook tells me a little about balancing chemical equations but I want to know more!

Answer 1

Ok now I will be solving by just giving the question no. and Answer no. to make the Answer more specific.

1.

Ans. Lower reactivity and more protons.

2. A)

Ans. K (potassium)

2. B)

Ans. Li (Lithium)

3.

Ans. Molten

4.

Ans. 2Na (solid) + Cl^2 (gas) =  2NaCl (solid)

As for the link you asked for well here it is:

http://en.wikipedia.org/wiki/Chemical_eq...

I found the article particularly helpful. I hope you do as well! Goodluck

Answer 2

Metal salts have free electrons when in a molten state. It has higher energy than the solid state and this allows elctrons to move around and therefore conduct electricty. Likewise in a solution, metal salts are spilt into positive and negative ions (in Sodium Chloride Na+ and Cl-) and electrons can move more freely than in water alone andf therefore will also conduct elecricity. Electrons in solid metal salts are tightly bound and are therefore are not good conductors of electricity.

The net reaction of Sodium and Chlorine is 2Na + Cl2 => 2NaCl. Chlorine is a gas at room temperature. It exists as molecular chlorine, with two Cl atoms combined to make chlorine gas Cl2 (in the same way that oxygen atoms combine to form molecular oxygen, O2). Sodium is a solid. The product is also a solid. This reaction is an example of a oxidation/reduction reaction. Sodium loses an electron and oxidized. Chlorine gains an electron and is reduced

Answer 3

Bromine is below chlorine so will be higher atomic weight and will therefore have more protons. It also will be less reactive than those atoms above it in the table. It is more likey to have a higher, not lower bioling point.

K, Li and Na are all alkali metals in the same group of the periodic table. So the most reactive will be Lithium the least reactive Potassium, with Sodium in between.

Metal salts have free electrons when in a molten state. It has higher energy than the solid state and this allows elctrons to move around and therefore conduct electricty. Likewise in a solution, metal salts are spilt into positive and negative ions (in Sodium Chloride Na+ and Cl-) and electrons can move more freely than in water alone andf therefore will also conduct elecricity. Electrons in solid metal salts are tightly bound and are therefore are not good conductors of electricity.

The net reaction of Sodium and Chlorine is 2Na + Cl2 => 2NaCl. Chlorine is a gas at room temperature. It exists as molecular chlorine, with two Cl atoms combined to make chlorine gas Cl2 (in the same way that oxygen atoms combine to form molecular oxygen, O2). Sodium is a solid. The product is also a solid. This reaction is an example of a oxidation/reduction reaction. Sodium loses an electron and oxidized. Chlorine gains an electron and is reduced.