How many moles are contained in a 4.67-l sample of gas at 30°c and 199 kpa?

What are the main ways that carbon dioxide enter the atmosphere?

Object A has a density of 10 g/cm3 and a mass of 9 g. Object B has a density of 10 g/cm3 and a mass of 4 g. Which object has a greater volume and by how much?

A neutral atom has the atomic number of 10 and the atomic mass is 22 amu. what is the number of neutrons and electrons for this atoms?

A certain alcoholic beverage contains only ethanol (C₂H₆O) and water. When a sample of this beverage undergoes combustion, the ethanol burns but the water simply evaporates and is collected along with the water produced by combustion.

What will happens if you mix acetone and hydrogen peroxide?

The change in energy needed to change the state of a substance is

What is the main goal of sustainable agriculture? A. To rely heavily on mechanization, pesticides, and fertilizers B. To produce cheap and abundant food at a high cost C. To feed a growing world without damaging the ecosystem D.

A student requires 2.00 L of 0.100 M NH4NO3 from a 1.75 M NH4NO3 stock solution. What is the correct way to get the solution?

Are roots or plant growth making cracks in concrete chemical or mechanical weathering?

In a particular genetic cross, the probability of the offspring having a certain traitis 3/4 Which percentage represents this probability? O 25% O 50% O 75% O 100%