What volume of hydrogen gas is produced at STP as sulfuric acid reacts with 120 g of solid metallic calcium in a single replacement reaction?

a. 67.2 liters

b. 65.2 liters

c. 68 liters

d. 66

A 20.0 L gas cylinder has been filled with 4.00 moles of gas. You measure the pressure to be 4.20 atm. What is the temperature inside the tank? Express your answer to three significant figures and include the appropriate units.

Which of these following terms are made of matter and which or not made of matter: air, light, radio, magnetic field, car, radio wave, feeling, flashlight, heat, textbook, human body, and thought

A student observes what happens when two different aqueous solutions are mixed in a test tube. Which of the following observations would be most indicative of a precipitation reaction? a. Gas bubbles are produced. b. A solid settles out. c.

When does the breaking of chemical bonds release energy?

Which best explains why water is able to "stick" to the side of glass? Strong adhesive forces exist between different water molecules. Strong cohesive forces exist between different water molecules.

Aqueous concentrated nitric acid is 69% HNO3 by weight and has a density of 1.42 g/mL. What is the molarity of this solution? What is the molality of the solution?

As the elements in Group 17 are considered in order of increasing atomic number, the chemical reactivity of each successive element (1) decreases (2) increases (3) remains the same

What is the concentration of an acid with a pH of 2?

g Assuming that the specific heat of the solution is 4.18 J / (g⋅∘C), that its density is 1.00 g/mL, and that the calorimeter itself absorbs a negligible amount of heat, calculate ΔH in kilojoules for the reaction.

Calculate the percent ionization of 0.0075 m butanoic acid (ka = 1.5 x 10-5) in a solution containing 0.085 m sodium butanoate.