you have 500 ml of 5 m hci already made. you need to dilute the solution to 1 m hci. how much water will you need to add?
a 2500 ml
062.01
cc 2.51
d 2.5 ml

a. 2500 ml of water is needed

Explanation:

V1C1=V2C2

(500)(5)=(1)V2

2500/1=V2

2500 = v2

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.