Which of the following are indicators of a healthy water source? Group of answer choices

high nitrates, high pH, and low temperatures

low temperature, high dissolved oxygen, and neutral pH

low pH, high nitrates, and low dissolved oxygen

high turbidity, high dissolved oxygen, and high temperature

is it a purebred? it looks more like a red nose, but it doesn't have the red could it be a staffordshire bull terrior? unsure if that's the right name for it sorry

option c: 1605.1 kj

the balanced chemical reaction for combustion of methane is as follows:

here, enthalpy formation of is -74.7 kj/mol, 0 kj/mol, -393.5 kj/mol and -241.82 kj/mol respectively.

the heat released or can be calculated as follow:

putting the values,

thus, heat released by combustion of 1 mol of methane is 802.54 kj/mol. thus, for 2 mol, heat released will be:

therefore, heat released by the combustion of 2 mol of methane is 1605.1 kj.