An atom in the ground state has seven valence electrons. This atom could be an atom of which element?

A. fluorine

B. Sodium

C. Calcium

D. oxygen

What would happen to the rate of a reaction with rate law rate = k no2 h2 if the concentration of h2 were halved?

Water is an example of a

Question 1 Acetone (CH3) 2CO is a volatile Liquid that can be readily converted to vapour. Calculate the density of acetone vapour at 100,000 Pa and 398 K in kg/m3. Assume ideal behaviour and use R=8.314 J/mol. K. Your Answer: Answer

Which compound is more soluble in water acetone or 2 - pentanone

A company is designing a new range of saucepans. The base of the saucepan should conduct heat well and evenly while the handle should be a good insulator.

It would take one light year to travel to the sun? True or false?

A specific, electrically neutral atom of boron has 5 protons, 5 electrons, and 6 neutrons. what is the mass number of this atom of boron? 6 5 11 16

When does hail happen?

For the reaction, calculate how many moles of the product form when 0.012 mol of O2 completely reacts. Assume that there is more than enough of the other reactant. 4Al (s) + 3O2 (g) →2Al2O3 (s) Express your answer using two significant figures.

Nuclei with too many or too few neutrons are?