Calculate the number of moles in 456 grams of lead, Pb

What is the molar mass of magnesium chloride

According to Le Chatelier's principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.

Lewis structure for 2O2 I'm okay with making lewis structures where there will be one 'thing' in the middle but in 2O2 I'm unsure because there are 2 oxygen's in the middle but is there an oxygen on either side or on top of the middle oxygen's?

What is the percent composition of muscovite mica if its chemical formula is (KF) 2 (Al2O3) 3 (SiO2) 6 (H2O)

A 20.0 g sample of a compound of nitrogen and oxygen contains 7.37 g of nitrogen. what is the formula of this compound?

How many moles of liquid water must freeze to remove 100 kJ of heat? (ΔHf = - 334 J/ g.

What is the power of a kitchen blender if it can perform 3750 joules of work in 15 seconds?

A 75.00 g a sample of a substance is analyzed and found to consist of 32.73 g phosphorus and 42.7 g oxygen. calculate the percent composition of this substance.

Which one of the following melts the fastest: rectangular prism, cylinder, and rectangular trapezoidal trough?

A 1.8-mL volume of seawater contains about 4.0 * 10^-10 g of gold. The total volume of ocean water is about 1.5 * 10^21 L. Calculate the total worth of all the gold in the world's oceans if the price of gold is $19.