Screw has very high efficiency.

a. True

b. False

Comparing the movement of particles in the three states of matter

Scientific theories are explanations for naturally occurring events or phenomena. Although scientific theories require extensive observations and experimentation, they can change over time as new evidence is discovered.

Witch equations are correctly balanced. H 2 O + 2O 2 H 2 O 2 Fe 2 O 3 + 3H 2 2Fe + 3H 2 O Al + 3Br 2 AlBr 3 CaCO 3 CaO + CO 2

Which of these is the smallest? atom molecule proton an ant

If an object has a density of 1.35 g/ml, will it float or sink in water?

What is an exothermic chemical reaction? a. It is a reaction that converts matter to heat. b. It is a reaction that requires heat to proceed. c. It is a reaction that draws heat from its surroundings. d.

Chemical equation for liquid ethyltoluene

Who is the discover of x-rays

Using complete sentences, explain how to predict the products and balance the reaction for the combustion of butane, C4H10. C4H10 + O2

which of the following is true? soil forms from weathered rocks and organic materials. fertile soil usually forms in areas with steep slopes.