Part 1 of 5 - Question 1 of 32 True or False: In a chemical change, the matter changes its overall composition.
True False
Question 2
How many of the following numbers have 3 significant figures? 3.003
16.0
0.004
1.24 x 104 0.001204
A. 4 B. 2 C. 5 D. 1 E. 3
Question 3
`Given the sequence of temps below, which one represents the Fahrenheit boiling, room temp, and freezing points of water, in that order?
A. 0-75-100
B. 212-72-32
C. 0-25-100
D. 0-298-373
E. none of the above
Question 4
When left alone a boy ate a tremendous amount of gummi worms if left alone. He spent part of
his own allowance at the candy store. He could buy an entire pound of gummi worms for $7.99 (tax included). So if he bought 2.25 kg, how much did he pay in dollars?
A. 29.66 B. 17.98 C. 12.51 D. 8.