You need to prepare 250. mL250. mL of a 0.500 M0.500 M aqueous solution using a pure solid with a molar mass of 276.2 g/mol. Which type of glassware should you use to make this solution, assuming that the accuracy of the concentration is important

hloride, what is the mass of calcium in

explanation:

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.

it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

hope this mark me brainliest