Name: Pure Substances and Mixtures 2.How do we measure … · 2018-09-05 · 1.What is matter?...
Transcript of Name: Pure Substances and Mixtures 2.How do we measure … · 2018-09-05 · 1.What is matter?...
Name:
Pure Substances and Mixtures
Read pages 152155 of your textbook and answer the following questions in point form.
1. What is matter?
2. How do we measure matter in the classroom? Give two examples
3. How many different elements are there? (see back inside cover of your text or look in your agenda)
How many different types of atoms are there?
4. When two atoms are bonded together, what is the new, larger particle called?
5. Are compounds always molecules? Explain with an example.
6. Is it possible to have a molecule of an element? Explain and give an example.
7. How is a pure substance different from a mixture? 8. Define the following terms:
a. Homogeneous:
b. Heterogeneous:
c. Alloy:
9. Fill in the charts below: Formula Draw the Particle Molecule or Atom? Element or Compound?
CH 4
NaCl
Cu
O2
H 2 O
C 6 H 12 O6
Substance Pure Substance or Mixture Homogeneous or Heterogeneous?
Milk
Salt
N2
Cookies
Air
Gasoline
Ocean Water
Chlorine gas