A sample of a compound contains 65.4 grams of zinc, 12.0 grams of carbon, and 48.0 grams of oxygen. What is the mole ratio of zinc to carbon

to oxygen in this compound?

(1) 1:1:2 (3) 1:4:6

(2) 1:1:3 (4) 5:1:4

What are the Number of molecules of 14 grams of NO2

Calculate how many Calories would be found in a breakfast consisting of the following: two eggs two pieces of toast buttered with one tablespoon of butter one 9 oz glass of orange juice

A 35.0 mL sample of 1.00 M KBr and a 60.0 mL sample of 0.600 M KBr are mixed. The solution is then heated to evaporate water until the total volume is 50.0 mL. What is the molarity of KBr in the final solution?

An adult human lung has a volume of 2.9 liters. If its volume decreases to 1.2 liters and it contains 0.049 mole of air after it exhales, how many moles of air does it contain when full?

What is the physical state of fluorine at room temperature?

How are chemical methods of determining salinity dependent on the principle of constant proportions?

What does oxidation mean

Which is the correctly balanced chemical equation for the reaction of KOH and H2SO4?

Disintegration is the word geologists use for A. when a rock becomes moist. B. when rock is physically broken into smaller pieces. C. when rock is chemically broken into smaller pieces. D. when rock undergoes a rather large chemical change.

There us no sound in the vacuum of space Why? Answer all that are correct A) sound must travel through something that vibrates B) there is no energy in space C) there is no air to vibrate in the human eardrum