How many moles of carbon dioxide are present in 14g of co2

The net force acting on an object is 0 N. Which of the following best describes the motion of the object?

Explain why losing an electron gives an atom a positive charge

A protein is a polymer that is made of a. simple sugars. c. amino acids. b. nitrogen and carbon dioxide. d. DNA.

A substance can be classified by it's physical properties, which are properties that ...

A 2-column table with 3 rows. The first column labeled mechanical waves has entries ocean water, light waves, earthquake waves. The second column labeled electromagnetic waves has entries sound waves, radiation waves, X-ray waves.

What mass (in mg) does 2.63 moles of nickel have? 3.56 * 105 mg 1.54 * 105 mg 2.23 * 104 mg 129 mg?

Given the propane molecule C3H8 (g) ! a) What is the balanced equation for the combustion of propane in O2? (20 pts.) b) What is the standard enthalpy change ΔH0 for the reaction at 25°C? (20 pts.

Which of the following happens during a chemical change? Check all of the boxes that apply. One atom or more changes into atoms of another element. New substances with different properties are formed. Solids, liquids, or gases may form.

Which has more inertia: a kilogram of cotton balls or a kilogram of gold?

Democritus who lived in greece during the fourth century b. c suggested that matter is made up of tiny particles that cannot be divided. what did he called them