Which of the following forces can make a ball move?

A - A balanced force

B - An unbalanced force

C - Equal and opposite forces along a horizontal plane

D - Equal and opposite forces along a vertical plane

A) How much CO is required for the production of Fe from 1000 tonnes of magnetite (Fe2O4). Assume that the iron ore is 100% pure.

Concentrations of lead in the bloodstream are often quoted in units of μg/dL. Averaged over an entire region, the mean concentration of lead in the blood was measured to be 1.5 μg/dL. Express this concentration in ppb.

Which elements combine by forming an ionic bond A) Sodium and potassium B) Sodium and oxygen C) carbon and oxygen D) Carbon and sulfur

What is the total number of atoms in CaCO3

A student performs an experiment to see how catalysts affect the rate of a reaction. He notices that when the reaction is nearly finished, it stops bubbling. He wants to know how much faster the reaction occurs when a catalyst is used.

The equilibrium constant for the production of carbon dioxide from carbon monoxide and oxygen is kc=2*1011 this means that the reaction mixture at equilibrium is likely to consist of

Arrange these compounds in order of increasing standard molar entropy at 25°C: C3H8 (g), C2H4 (g), ZnS (s), and H2O (l).

A gas has a temperature of 14 degrees C and volume of 4.5 liters. If the temperature is raised to 29 degrees C and the pressure is not changed, what is the new volume of the gas? .

What groups of elements do not have a charge and why

How many grams of Br are in 2.0 moles of CaBr2?