Answers: 3
Biology, 21.06.2019 16:00
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
Answers: 2
Biology, 21.06.2019 18:50
Which of these organisms have the greatest amount of cell specialized
Answers: 2
Biology, 21.06.2019 19:00
Consider the diagram below, which represents components of the biosphere. what do the two arrows in the diagram most likely represent? a. radiation b. photosynthesis c. cellular respiration d. energy conversions will give to anyone who answers quickly
Answers: 1
These two processes cycle carbon and oxygen through ecosystems:...
Geography, 24.07.2019 00:00
English, 24.07.2019 00:00
Geography, 24.07.2019 00:00
English, 24.07.2019 00:00
History, 24.07.2019 00:00
Mathematics, 24.07.2019 00:00
English, 24.07.2019 00:00
History, 24.07.2019 00:00