Microwave ovens use microwave radiation to heat food. the energy of the microwaves is absorbed by water molecules in food and then transferred to other components of the food. typical microwaves have wavelength in the 10-12 cm range. suppose your microwave oven emits waves of length 11.2 cm. how many photons are required to heat 200 ml of water from 23oc to 95oc

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

What is the correct lewis structure for chloroform chcl3