Mass is defined as anything that can be observed.

Question 4 options:

True

False

Consider the reaction 2no2 (g) → n2o4 (g) and δg∘ (no2 (g)) = 51.84 kj/mol, δg∘ (n2o4 (g)) = 98.28 kj/mol. calculate δg at 298 k if the partial pressures of no2 and n2o4 are 0.38atm and 1.64atm, respectively.

if 2.34 moles of tin (IV) chloride reacts with 4.36 moles of sodium, according to the following reaction, what mass of ammonia would be produced?

Al (s) + HCl (aq) - -> AlCl3 (aq) + H2 (g) a. Balance the eqaution b. determine the oxidation state of each atom on each side of the equation c. If 1.562 g of Al reacts completely, how many grams of AlCl3 will be formed? d.

What is the concentration (M) of a solution with a pH of 9.52?

How does a branched chain differ from a straight chain?

The dihydrogenphosphate ion, H2PO4 - is amphiprotic. In which of the following reactions is this ion serving as a base?

What is the reactant (s) of the reaction below? MgCO3 (s) → MgO (s) + CO2 (g) O A. Magnesium oxide and carbonate O B. Magnesium carbonate O O C. Magnesium and carbon dioxide D. Magnesium oxide

Temperatures in June in the Paradise City are distributed nearly normally with mean 82 degrees and standard deviation 6 degrees F. Which of the following temperatures would be considered unusual? A. 89.2 B. 75.4 C. 79 D. 86.2 E. 95.8

Which feature do all adult echinoderms have?

A scientist observed a 5-mL sample of an unknown substance. It is a blue liquid with a density of 1.2 g/cm. the substance reacts with carbon dioxide.