Can you name some natural disasters

Calcium reacts with sulfur forming calcium sulfide. what is the theoretical yield (g) of cas (s) that could be prepared from 1.6 g of ca (s) and 4.25 g of sulfur (s) ? enter your answer with two decimal places. do not type units with your answer.

Which one of the following statements is true? The internal energy of a system will not chage if there is no heat exchange between the system and its surroundings.

Explain the difference between how a lamp and a TV use of energy?

A mineral must be in this state of matter

The following conditions exist in a bacterium and its environment. Environment: 5M NaCl; 1M glucose Inside cell: 3M NaCl; 10M glucose The bacterium needs more glucose in the cell. True or false.

The flow of energy in an ecosystem is the best described as energy moving in

Which bond other than the c-c bond is the least polar in the molecule?

The warmest temp ever measured in the us is 134 degrees F. Convert that temp to C and K

Compared to the oceanic crust the continental crust is usually

What is the study of matter called? O A. Chemistry O B. Philosophy O O C. Biology D. Physics