The diagram below represents a beaker of water being heated by a flame. The arrows represent heat transfer occurring in the beaker.
Which process is represented by the arrows in the diagram?
O condensation
O conduction
O convection
O radiation

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.)

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?