What would be considered the strongest base?

Which of these statements about resonance is true? (a) when you draw resonance structures, it is permissible to alter the way atoms are connected. (b) the nitrate ion has one long n-o bond and two short n-o bonds.

How many grams of hcl is dissolved in 500 ml of a 0.2 m hcl solution?

All substances are composed of which type of matter? a. ions b. mixtures c. elements d. molecules

How many molecules (not moles) of nh3 are produced from 4.14*10-4 g of h 2?

If a chemist has a stock solution of HBr that is 10.0 M and would like to make 450.0 mL of 3.0 M HBr, how would he do it?

Compared to a potassium atom, a potassium ion has A) a smaller radius B) a larger radius C) fewer protons D) more protons

Which unit measures mass?

The mechanism for the reaction described by 2N2O5 (g) - - - > 4NO2 (g) + O2 (g) is suggested to be (1) N2O5 (g) (k1) - - - > (K-1) NO2 (g) + NO3 (g) (2) NO2 (g) + NO3 (g) - - - > (K2) NO2 (g) + O2 (g) + NO (g) (3) NO (g) + N2O5 (g) - - - > (K3) 3NO2

Which question can be answered using the scientific method? A) Which dog food is best for healthy teeth? B) What color is the most attractive? C) What is my purpose in life? D) Which flower smells the best?

For the galvanic cell reaction, expressed below using shorthand notation, what half-reaction occurs at the cathode?