hustle4bread123
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1. What is 0.000 020 3 expressed in scientific notation?
a. 2.03 x 10^5
b. 2.03 x 10^-5
c. 2 030 000
d. 203
2. What is 976.23 expressed in scientific notation?
a. 976.23
b. 976.23 x 10^2
c. 976.23 x 10^-2
d. 976.23 x 10^4
3. Avogadro's number is
a. 6.022 x 10^23
b. 1.602 x 10^-24
c. 3.1416.
d. 3.0 x 10^-8.
4. One mole of iron atoms
a. is more massive than one mole of aluminum atoms.
b. is less massive than one mole of aluminum atoms.
c. is a larger quantity of atoms than one mole of aluminum atoms.
d. is a smaller quanitity of atoms than one mole of aluminum atoms.
10 PTS!!!
a. 2.03 x 10^5
b. 2.03 x 10^-5
c. 2 030 000
d. 203
2. What is 976.23 expressed in scientific notation?
a. 976.23
b. 976.23 x 10^2
c. 976.23 x 10^-2
d. 976.23 x 10^4
3. Avogadro's number is
a. 6.022 x 10^23
b. 1.602 x 10^-24
c. 3.1416.
d. 3.0 x 10^-8.
4. One mole of iron atoms
a. is more massive than one mole of aluminum atoms.
b. is less massive than one mole of aluminum atoms.
c. is a larger quantity of atoms than one mole of aluminum atoms.
d. is a smaller quanitity of atoms than one mole of aluminum atoms.
10 PTS!!!