Which one of the following is not a balanced equation? Explain why.

A. C3H8 (g) + O2 (g) → CO2 (g) + H2O (g)

B. C3H8 (g) + 5O2 (g) → 3CO2 (g) + 4H2O (g)

C. 2Mg (s) + O2 (g) → 2MgO (s)

D. 4Na (s) + O2 (g) → 2Na2O (s)

When determining the mass of product used or reactant consumed, the number of moles must be determined before comparing two substances because a) moles react. b) atoms have the same mass but moles are different for each substance.

How many significant figures are there in the measurement 64,000 mg? A. 2 B. 3 C. 4 D. 5 (Possibly A but idk)

Fe2o3 (s) + 3co (g) →2fe (s) + 3co2 (g) in a reaction mixture containing 189 g fe2o3 and 63.0 g co, co is the limiting reactant.

The amount of I3 - (aq) in a solution can be determined by titration with a solution containing a known concentration of S2O3^2 - (aq) (thiosulfate ion).

What's the deffinition of solute in your own words?

Which does not add to the reliability of a scientific source of information? displaying data in a colored chart clearly identifying the sources of the data explaining how the data was collected showing that many scientists had reviewed the

Given that pH + pOH = 14, what is the pH of a solution if its pOH is 12.4?

How long does it take to anser this quesiton fist one gets brialyest

Which of the following quantities is conserved in a chemical reaction

Describe soda on the effect of baking stomach contents with ph4