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, 22.06.2019 04:30
Sexual reproduction in the parent cell will result in offspring with a) identical genetic information. b) half the genetic information. c) double the genetic information. d) four times the genetic information.
Answers: 1
Biology, 22.06.2019 17:00
Evolution acts upon the population of organisms and not on each individual organism
Answers: 3
Biology, 22.06.2019 19:30
Many humans consume both plants and animals. these humans are considered to be which of the following? herbivores carnivores omnivores
Answers: 1
Biology, 22.06.2019 22:30
Which of the following best demonstrates the unity among all organisms? matching dna nucleotide sequencesdescent with modificationthe structure and function of dnanatural selectionemergent properties
Answers: 1
Elements and compounds are pure substances that cannot be broken down physically into a simpler subs...
English, 14.05.2021 15:50
History, 14.05.2021 15:50
Mathematics, 14.05.2021 15:50
Mathematics, 14.05.2021 15:50
Mathematics, 14.05.2021 15:50
English, 14.05.2021 15:50
Mathematics, 14.05.2021 15:50