Which activity is an example of a chemical change?

a. sugar dissolving in water

b. water evaporating into water wapor

c. lighting a match

d. freezing water

What material most likely would form a aquiclude?

An electromagnet does not attract a piece of iron TRUE or FALSE

A temperature of 50°F is equal t °C. What is the number in between t and c

An insulated cup contains 75g of water at 24 degrees. A 26g sample of metal at 82.25 degrees is added. The final temperature of the water and metal is 28.34 degrees. What is the specific heat of the metal?

What's are some forms of chemical energy

V=345m/s, 7210Hz, X=?

As a mercury atom absorbs a photon of energy, an electron in the atom changes from energy level d to energy level e. Determine the energy of the absorbed photon in electronvolts.

During an exothermic reaction, the energy given off comes from atoms being consumed mass being burned into energy the breaking and forming of bonds mass being created

Can electrostatic attract both pull and pull?

Ways that charges can be transferred