What type of matter is 100 grams of sodium chloride?
Homogeneous mixture
Heterogeneous mixture
Pure substance that is an element
Pure substance that is a compound
A nonmetal has higher reactivity than sulfur. Which of the following statements about the location of this nonmetal on the periodic table can be true?
The nonmetal is to the right of sulfur in the same row.
The nonmetal is to the left of sulfur in the same row.
The nonmetal is below sulfur in the same column.
The nonmetal is above sulfur in the same column.
Answer:
The nonmetal is to the right of sulfur in the same row.
The table below shows the number of sub-atomic particles in an atom of magnesium.
Sub-atomic Particles
Sub-atomic Particle Number
Protons 12
Neutrons 12
Electrons 12
What is the amu of a magnesium atom?
0
12
24
36
Answer:
24
Explanation:
I'm not sure but I'm pretty sure this is right. I'm sorry if it's not right