Chemistry, 09.12.2020 17:20, brianamcorchadp
Hree friends are talking about what they think causes shiny pennies to turn dull. Deandre says, "I think they turn dull because they're exposed to the air over time." Jamie says, "I think they turn dull because they get dirt on them from being dropped on the ground." Selina says, "I think there is dull metal inside the penny the entire time." Who do you agree with most and why?
Answers: 2
Chemistry, 23.06.2019 01:30, mindofnyny
Which is an example of a highly unstable isotope that is often used in fission reactions?
Answers: 1
Chemistry, 23.06.2019 06:30, madelineb6243
Which of these describes how heat is transferred by convection* a. sunlight travels through space without the aid of fluids or solids. b. warm air rises and takes the heat with it, eventually, it cools and sinks c. air at the equator rises and sinks at the poles. d. air molecules touch the warm ground, heating them up *not conduction
Answers: 3
Chemistry, 23.06.2019 07:30, 22emilyl530
Chris is about to do an experiment to measure the density of water at several temperatures. his teacher has him prepare and sign a safety contract before beginning the experiment. which term is mostlikely part of the safety contract
Answers: 3
Hree friends are talking about what they think causes shiny pennies to turn dull. Deandre says, "I t...
Mathematics, 08.06.2021 20:50
Mathematics, 08.06.2021 20:50