Question

HELP ME PLEASE!!!

Answer 1

Gladly.

Answer 2

6. Match each term with its description or example.

Potential Matches:
1 : Mg2+ is an example
2 : two atoms with the same number of protons but a different number of neutrons
3 : atoms of iron are an example
4 : Br- is an example
5 : two different types of atoms combined in a fixed ratio
6 : Na+ and Cl- are examples
Answer
: element
: compound
: ion
: isotopes
: cation
: anion

Answer 3

1: Cation-positive charge
2: Isotope-diff # of neutrons
3: Element-it can be found on the periodic table(pure)
4: Anion-negative charge
5: Compound-even ration
6: Ion-element with a charge(cations and anions are a more specific way of describing ions)
Hope this helps!

Answer 4

*ratio

Answer 5

9. Which element is the most electronegative?

potassium (K)
manganese (Mn)
bromine (Br)

Answer 6

@JoyLin

Answer 7

look at the periodic table which element is furthest to the right and highest up on the periodic table that would be... Bromine :)

Answer 8

remeber electronegativity is a measure of how badly a element wants to gain an electron

Answer 9

Sorry. Dx Didn't get here in time. Yea. Basically what she stated. Bromine because it has 7 valence electrons(only needs 1 more).

Answer 10

19. Which of the following is a property of bases?
donate protons
feel slippery in water
increase the hydrogen ion concentration
would it be C?

Answer 11

i think bases feel slippery i could be wrong though

Answer 12

21. A soda drink is bubbly because of the addition of carbonic acid.
True <my answer

False


22. Which of the following values displays the pH of an acid?
3 < my answer
8
12


23. A substance that contains more hydroxide ions than hydronium ions in solution could have which pH value?
4
7
10 < my answer

Are these right?

Answer 13

Yup

Answer 14

25. Which of the following is an example of a mixture?
saltwater <my answer
salt
water


26. In a solution of seawater, water is the solute.
True <my answer
False


27. To make brass, small amounts of zinc are dissolved in copper. In this solution, zinc is the solvent.
True <my answer
False


28. In a solution, the solvent is the substance that dissolves another substance.
True < my answer
False
Are these right?

Answer 15

@JoyLin

Answer 16

if small amounts of zinc are dissolved in copper shouldn't copper be the solvent?

Answer 17

Are my other answers correct?

Answer 18

yep

Answer 19

Water can dissolve many substances because it has an overall negative charge, allowing it to attack positively-charged ions.
True
False