A hybrid car averages 18 km per litre of petrol.

How many litres of petrol does the car use per

kilometre?

Objects in free-fall ___. do not experience air resistance do not experience gravity are accelerating faster than 9.8 m/s/s are completely weightless

Why is respiration an exothermic reaction? A large amount of energy is released into the surroundings. The heat content, q, of the reaction is positive. A large amount of energy is required to activate the reaction.

Based on our theory of how our own solar system formed, we would expect that other solar systems would be quite common. Based on our theory of how our own solar system formed, we would expect that other solar systems would be quite common.

True or false atoms are made up of tiny particles called molecules true or false

Is PbO2 ionic or covalent

What is the natural process by which yeast converts sugar into carbon dioxide and alcohol called?

What is the kinetic energy of a 55 kg girl walking at a velocity of 2m/s?

Name the compound K3 (PO4) 3

How many grams of silver chloride (AgCl) can be produced if you start with 12.5 grams of barium chloride (BaCl2) ? 2AgNO3 + BaCl2 = = > 2AgCl + Ba (NO3) 2

Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese (IV) oxide. 4 HCl (aq) + MnO 2 (s) ⟶ MnCl 2 (aq) + 2 H 2 O (l) + Cl 2 (g) 4HCl (aq) + MnO2 (s) ⟶MnCl2 (aq) + 2H2O (l) + Cl2 (g) A sample of 43.