1 pts Question 1
583 g of potassium react with 18.1 g of oxygen
X-02 --> 2K20
How much potassium oxide is formed?

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what

Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88