List the symbol for each of the following: Liquid, Solid, and Gas
Question 12
12.
State the parts of a chemical equation in the correct format.
Question 13
13.
State the name and number of each element represented in the compound: NaCl
Question 14
14.
State the name and number of each element represented in the compound: K3PO4
Question 15
15.
State the name and number of each element represented in the compound: Ca(OH)2
Question 16
16.
State the relative mass and charge for the subatomic particle of an atom: proton
Question 17
17.
State the relative mass and charge for the subatomic particle of an atom: electron
Question 18
18.
State the relative mass and charge of the subatomic particle of an atom: neutron
Question 19
19.
Define the term Mass Number (A).
Question 20
20.
Define the term Atomic Number (Z).
Question 21
21.
Define the term ion.
Question 22
22.
Define the term isotope.
Question 23
23.
The element vanadium has two isotopes, 5023V and 5123V, and a relative atomic mass of 50.94. State the number of protons, electrons and neutrons in 5023V.
Question 24
24.
The element vanadium has two isotopes, 5023V and 5123V, and a relative atomic mass of 50.94. State and explain which is the more abundant isotope.
Question 25
25.
Chlorine exsists as two isotopes, 35Cl and 37Cl. The relative atomic mass of chlorine is 35.45. Calculate the percentage abundance of each isotope.
Question 26
26.
Calculate the relative atomic mass using hte following mass spectrum data for Rubidium.
Which process happens as a substance changes from the liquid state to the gaseous state?
melting
freezing
boiling/vaporizing
condensing
Which state of matter has a fixed volume and takes the shape of the container?
solid
liquid
gas
all of the above
Which of the following is compound?
Gold
Sodium Chloride
Boron
Air
Which of the following is a homogenous mixture?
pure air
soda
salad
orange juice
Which statement about the numbers of protons, electrons and neutrons in a neutral atom is always correct?
The number of neutrons minus the number of electrons is zero.
The number of protons plus the number of neutrons equals the number of electrons.
The number of protons equals the number of electrons.
The number of neutrons equals the number of protons.
What is the difference between two neutral atoms represented by the symbols 5927Co and 5928Ni?
The number of of neutrons only.
The number of protons and electrons only.
The number of protons and neutrons only.
The number of protons, neutrons, and electrons.
How many electrons are there in one 2412Mg2+ ion?
10
12
14
22
Consider the composition of the species, W, X, Y and Z below. What species is an anion?
W: protons= 9, neutrons = 10, electrons = 10
X: protons=11, neutrons=12, electrons=11
Y: protons=12, neutrons=12, electrons=12
Z: protons=13, neutrons =14, electrons =10
What is the correct number of each particle in a fluoride ion, 19F-1?
protons: 9, neutrons: 10, electrons:8
protons: 9, neutrons: 10, electrons: 9
protons: 9, neutrons: 10, electrons: 10
protons: 9, neutrons: 19, electrons: 10
A certain sample of element Z contains 60% of 69Z and 40% of 71Z. What is the relative atomic mass of element Z in this sample?