The formula mass of acetic acid, HC2H3O2, is ______________ u
Fill in the blank(s) with correct word
60.0
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Elephants are hunted illegally in Africa for ivory. If the current poaching experience is any guide, the number of elephants will decrease by half in about 25 years
If the elephant population in 1995 was 16,000, by what date would you expect the number to have decreased to 1000? a. 2011 b. 2045 c. 2070 d. 2095 e. 2120
When unequal resistors are connected in series across an ideal battery,
A) the same power is dissipated in each one. B) the potential difference across each is the same. C) the current flowing in each is the same. D) the equivalent resistance of the circuit is less than that of the smallest resistor. E) the equivalent resistance of the circuit is equal to the average of all the resistances.
What is the symbol for the element copper?
a. Co b. Ce c. Cr d. Cu
A soda straw is stuck into water at an angle of 36° to the vertical. Looking straight down, what does the angle of the submerged portion of the straw to the vertical appear to be?