We can easily move our hand in air, but to do the same through a solid block of wood, we need a karate expert. Why?

The combustion of ethane (C 2 H 6) produces carbon dioxide and steam. 2 C 2 H 6 (g) + 7 O 2 (g) ⟶ 4 CO 2 (g) + 6 H 2 O (g) How many moles of CO 2 are produced when 5.20 mol of ethane is burned in an excess of oxygen?

A teniss ball has more mass than a gold ball because it?

For a liquid substance, which item increases as heat is applied? density mass volume Odensity and volume

49. Which of the following statements regarding chemical equilibrium is true? Equilibrium is shown with a single arrow and/or an equal sign. A system at equilibrium maintains the concentrations of all reactants/products over time.

Calculate the value of K p for the equation C (s) + CO 2 (g) - ⇀ ↽ - 2 CO (g) K p = ? given that at a certain temperature C (s) + 2 H 2 O (g) - ⇀ ↽ - CO 2 (g) + 2 H 2 (g) K p 1 = 3.23 H 2 (g) + CO 2 (g) - ⇀ ↽ - H 2 O (g) + CO (g) K p 2 = 0.693

The compound KOH is called

A balloon contains 1.00 mol helium gas at STP. What will the volume of the balloon be if the pressure increases to 2.00 atm?

If 100 mL of a gas were enclosed in a buret at 500 mm Hg, what volume would the gas occupy at 1000 mm Hg at the same temperature? P1V1=P2V2

Would Mn (HPO4) 2 be manganese (II) monohydrogen phosphate?

The fundamental frequency of a violin string is 440 hz. the frequency of its second harmonic is