A Science 30 student is provided with three unknown substances. He is told that the identities of them are methanol(CH3OH)

methanoic acid(CHOOH)

and methyl methanoate,(CHOO-CH3)

To identify what each of the unknown substances is, he performs a conductivity, litmus,
and odour test on each of the substances.

Conductivity Test
1 - Positive
2- Negative

Litmus Test

1- no change
2- red turns blue
3 - blue turns red

Match the descriptions below to the correct results from the tests above:

42. Conductivity of methanol

43. Litmus test of Methyl methanoate

44. Conductivity rest of Methanoic acid

45. Litmus test of Methanoic acid

Ase your answer to this question on the information below. hydrocarbons and fissionable nuclei are among the sources used for the production of energy in the united states. a chemical reaction produces much less energy than a nuclear reaction per mole of reactant. the balanced chemical equation below represents the reaction of one molecule of a hydrocarbon with two molecules of oxygen. chemical equation: ch4 + 2o2 → co2 + 2h2o + 1.48 × 10−18 jthe nuclear equation below represents one of the many possible reactions for one fissionable nucleus. in this equation, x represents a missing product. nuclear equation: write an isotopic notation for the missing product represented by x in the nuclear equation.

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

22. a flask containing 450 ml of 0.50 m h2so4 was accidentally knocked to the floor. how many grams of nahco, do you need to put on the spill to neutralize the acid according to the following equation: h2so4(aq)+2 nahcos(aq) na, so(aq) +2 h20()+2 co2(g) d) 38 g a) 2.3 g b) 9.5 g c) 19 g