What is the MOLAR heat of combustion of methane(CH4) if 64.00g of

methane are burned to heat 75.0 ml of water from 25.00°C to 95.00°C?

(Water heat capacity-4.184 J/g°C)

5492 J/mol

21970 J/mol

343.0 J/mol

O

1373 J/mol

What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots

Citric acid has a ph between 1 and 3.  it is considered to be aa. weak acidb. weak basec. strong based. strong acid

Which would freeze at a higher temperature: the great salt lake or lake tahoe? a. lake tahoe would freeze at a higher temperature. b. the great salt lake would freeze at a higher temperature. c. both lakes would freeze at the same temperature.