Directions: the diagram shows a chemistry demonstration. use the diagram to answer any questions that follow. what happened to the substances in the test tube during step 2? group of answer choices the heat started a chemical reaction between the iron and sulfur resulting in the product iron sulfide. the heat started a chemical reaction in the compound iron sulfide. breaking it down to iron and sulfur. the heat started a physical reaction between the iron and sulfur resulting in the product iron sulfide the products iron and sulfur reacted making the reactant iron sulfide.
Answers: 2
Biology, 22.06.2019 03:30
Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.
Answers: 1
Biology, 22.06.2019 08:50
Blood stem cells may develop into any kind of human blood cells. what kind of stem cells are blood stem cells? a. multipotent stem cells o b. totipotent stem cells o c. pluripotent stem cells o d. unipotent stem cells
Answers: 1
Biology, 22.06.2019 09:30
During binary fission, what events must occur before the cell splits into two new cells?
Answers: 2
Directions: the diagram shows a chemistry demonstration. use the diagram to answer any questions th...
Mathematics, 07.04.2021 21:30
Mathematics, 07.04.2021 21:30
Biology, 07.04.2021 21:30
Mathematics, 07.04.2021 21:30
Mathematics, 07.04.2021 21:30
Computers and Technology, 07.04.2021 21:30
Mathematics, 07.04.2021 21:30
Mathematics, 07.04.2021 21:30
Computers and Technology, 07.04.2021 21:30
History, 07.04.2021 21:30
Mathematics, 07.04.2021 21:30