Which of these statement is conclusive evidence that mixing sugar in water is a physical change? A). there is no change in color B). there is no precipitate formed. C). there is no gas given off. D). there is no molecular change.

During a laboratory activity, a student combined two solutions. In the laboratory report, the student wrote "A yellow color appeared." The statement represents the student's recorded (1) conclusion (3) hypothesis (2) observation (4) inference

How many protons and electrons are present in Au+?

True or false? A weather station gathers data about weather conditions for a specific spot on land.

Which enzyme will be most involved in the digestion of high protein food? A. salivary amylase B. pancreatic lipase C. protease D. sucrase

Which of the following is not a stage in the development of a thunderstorm? developing stage dissipating stage mature stage updraft stage

Is MgCO3 a correct chemical formula

Water is an exaple of a mixture because it is made up of hydrogen and oxygen atoms bonded together true or false

Chlorine plus lithium bromide

What is the independent and dependent variable of the sentence" you decide to clean the bathroom. You notice that the shower is covered in a strange green slime. You decide to try to get rid of this slime by adding lemon juice.

M=40g V=31cm^3 what is the density