NH3 is an example of A. an element. B. an atom. C. a mixture. D. a compound.

The average adult human male has a total blood volume of 5.0 L. if the concentration of sodium ion in this average individual is 0.135 M, what is the mass of sodium ion circulating in the blood?

Calculate the amount of heat transferred when 2.60 g of c2h2 (g) is consumed in this reaction at constant pressure

A thief plans to steal a gold sphere with the radius of 28.9cm from a museum. If the gold has a density of 19.

A solid magnesium flare has a mass of 1300 g and a volume of 743 cm to the third power. What is the density of the magnesium?

How do you write a word equation

The use of fertilizers in agriculture has significantly altered several nutrient cycles including:

If 31.6 g of KMnO4 is dissolved in enough water to give 160 mL of solution, what is the molarity? AND what mass of oxalic acid, H2C204, is required to make 300 mL of a. 74 M solution?

From where do the kinetic tiles collect energy?

For the reaction 2Fe + 3Cl2 → 2FeCl3 which of the following options gives the correct reactant:reactant ratio? Fe:Cl2 = 1:1 Fe:Cl2 = 2:3 Fe:Cl2 = 3:2 Fe:FeCl3 = 1:1

A 2.575 g piece of gold (specific heat = 0.129 J/g°C) at a temperature of 75°C is placed into cold water at 10°C. If the gold loses 10.0 J of energy, what is its final temperature in the water? Enter your answer to the nearest whole number of °C.