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15 questions
1. A substance that dissolved the solute is ____________.
a. solution
b. saturation
c. solvent
2. The majority of the universe is made of this phase or state of matter?
a. solid
b. gas
c, liquid
d. plasma
3. Showing substance's acidity or how basic it is, is what type of change?
a. mechanical
b. physical
c. vaporization
d. chemical
4. Mixture is always combination of of compound that are in different state of matter.
a. true only
b. false only
c. neither true or false
5. _____________ it means to combine together.
a. melt
b. mix
dissolve
6.
a. physical chance
b. chemical change
7.
a. physical change
b. chemical change
8.
a. physical change
b. chemical change
9.
a, physical change
b. chemical change
10.
a. physical change
b. chemical change
11. What two types of particles exist within an atom's
nucleus?
a. proton and electron
b. neutron and electron
c .element and neutron
d. proton and neutron
12. Oxygen has an atomic number of 8. What can you consider from this fact?
a. An atom of oxygen weighs 8 grams
b. An atom of oxygen has 4 protons and 4 electrons
c. An atom of oxygen has 8 protons
d. An atom of oxygen has 8 neutrons
13. How are molecules different than atoms?
a. They consist of several atoms bonded together
b. They do not contain neutrons
c. They do not have nuclei
d. Their particles do not have electrical charges
14. Atoms of an element are determined by which of the following?
a. same number of electrons
b. same number of neutrons
c. same number of protons
d. same number of protons and electrons
15. When an atom has a different number of electrons which gives it a charge what is it called?
a. ion
b. isotope
c. radioactive
d. magnetic
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