How do you know that matter is conserved during the process of cellular respiration? A) It has the same number of atoms in the inputs and outputs
B) It has the same number of molecules in the inputs and outputs
C) The same number of carbon molecules in the inputs is found in the outputs

Elements and compounds are pure substances that cannot be broken down physically into a simpler substance. a physical change doesn’t break the bonds between atoms of a substance or form new ones. compounds can be broken down by a chemical change. a chemical change breaks chemical bonds and/or forms new ones between atoms of a substance. what simple substance would a compound break into? the basic elements that make it up! for example, if you passed a very strong electric current through water you’d break the chemical bonds in water and be left with oxygen and hydrogen. which of the following is an example of a chemical change? a separating water into different glasses b breaking frozen ice cubes with a hammer c running an electric current through water d boiling water to evaporate it on a stove

How had the study of mitosis affected scientists knowledge of cancer

Dna is colied into chromosomes in a cell