What is the molarity of a solution containing 55.8 g of MgCl2 dissolved in 1 L of solution?

The coefficients of a balanced chemical equation indicate the relative number of

A solution of CaCl₂CaCl₂ in water forms a mixture that is 31.0%31.0% calcium chloride by mass. If the total mass of the mixture is 650.5 g, 650.5 g, what masses of CaCl₂CaCl₂ and water were used?

Explain why c 12 6 and c 14 6 are istopes of carbon

What is the mole ratio of oxygen to water in the following equation? C3H8 + 5O2 - > 3CO2 + 4H2O 10:8 10:9 5:4 7:7

How many moles of O_{2} molecules are present in a 0.301 L sample of dry air at 0.0395 atm and 23.8 °C? (Oxygen constitutes 20.94% of the molecules in dry air.) (Enter your answer using either standard or scientific notation.

An atom of beryllium (m = 8.00 u) splits into two atoms of helium (m = 4.00 u) with the release of 92.2 kev of energy. if the original beryllium atom is at rest, find the kinetic energies and speeds of the two helium atoms

The most penetrating neclear radiation is

Certain object has a mass of 60 g and a volume of 32.6 cm³ what type of objects is the density

Which of the following statements is true? A. A producer usually obtains food by hunting other organisms. B. Humans that prepare their own meals are producers. C. A producer must be a plant. D. Consumers depend upon producers for food.

If the coral and the fish were removed from the ocean ecostyem. How would the ecostyem change?