How many calories of energy will 20 grams of carbohydrates provide if 1 gram provides 4 calories? A. 80 calories
B. 100 calories
C. 200 calories
D. 240 calories
(free points bc the answer is A.)

Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.

Acandle’s wick is the fabric string that holds the flame, and it burns down at a constant slow pace when the candle is lit. the wick is usually surrounded by wax. which is the most important property of covalent compounds that makes them useful for making candle wax? a low boiling point a low melting point a high boiling point a high melting point

What is the empirical formula of a compound that is 50.7% antimony and 49.3% selenium ?