Match each metric unit to the instrument and units used for measurement

mass a. graduated cylinder (milliliters)
length. b. triple-beam balance (grams)
volume c. ruler (meters)

Used the balanced equation 2h2+ o2 - -> 2h2o. if you have 7.2 grams of o2 , how many grams of h2o can you produce ?

What happens when light is scattered?

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.