Which statement describes what it means for energy to be conserved? Energy released by a reaction disappears.

Energy gained by a reaction is new energy.

Energy gained by a reaction must be taken from another reaction.

Energy released by a reaction is gained by the surroundings.

The ph of carrots are 5.0 how it is classified a.acidic b.basic c.indicator d.neutral

When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)

If a 12-v battery is connected to a circuit that has a current of 3.0 a, what is the total resistance in the circuit? 36 ohms 4 ohms 0.25 ohms