Is evaporation exothermic or endothermic

5. Hail forms from the strong updrafts of these clouds. A. stratus B. cumulous C. cirrus D. cumulonimbus

A major component of gasoline is octane c8h18. when octane is burned in air, it chemically reacts with oxygen gas o2 to produce carbon dioxide co2 and water h2o. what mass of oxygen gas is consumed by the reaction of 6.0g of octane?

A material made from combining two materials from other categories is called a what

Who developed a system of classifying organisms by genus and species A) Darwin B) Linnaeus C) Watson D) Mendel P. S. - This is Science not Chemistry

From which of the following do spiral galaxies form? A. rapidly cooling protogalactic clouds high-density protogalactic clouds rapidly spinning protogalactic clouds colliding/merging protogalactic clouds

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.