Periodic Table
Which 2 of the following element(s) is not apart of the alkali metal?
lithium, hydrogen, cesium, oxygen, potassium
hydrogen and oxygen
Which of the following is not a heterogenous mixture
sodium chloride, chocolate chip cookie, vegetable soup, soil
sodium chloride
300.22 has how many significant figures
5
Which scientist discovered the nucleus?
Rutherford
Name the following compound
CaCl2
calcium chloride
Iron is apart of what group name
Transistion metals
What is the name of the process that changes a solid directly to a gas without going through the liquid phase
sublimation
0.000008 has how many significant figures
1
How many protons does calcium with a +2 charge have?
20
Name the following compound
Na C2 H3 O2
sodium acetate
How many valence electron and core electrons does aluminum have
3 valence
10 core
What is an ionzable form of gas called?
Plasma
Convert 300 into scientifc notation
3 * 102
How many electrons does potassium with a +1 charge have?
18
Write the formula for
trisulfur dinitride
S3 N2
Which group contains inactive gases?
noble gases
Which of the following is a compound
iron
chocolate chip cookie
isopropyl alcohol
salt dissolve in water
isopropyl alcohol
299 rounded to 2 significant figures is
3.0 *102
Which subshell holds a maximum of 14 electrons?
f
What is formula for nitric acid?
HNO3
The most active nonmetal group is called
Halogen group
Kinetic energy is known as energy of
Motion
2450 rounded to 2 significant figures is
2400
Which of the following set is an isotope
19p, 19 e, 20 n
11p, 11e, 14n
3p, 2e,4 n
11p, 11e, 14n
What is formula for iron III oxide
Fe2O3