Answers: 2
Biology, 21.06.2019 16:00
Every compound can be represented by a chemical formula. a chemical formula is the set of symbols showing the elements that make up a compound and their proportions. water’s chemical formula is h 2 2 o. that means a molecule of water contains two atoms of hydrogen and one atom of oxygen chemically bonded. a molecule is a group of two or more atoms bonded together. molecules can range in size from two to thousands of atoms. a molecule of a compound is the smallest unit of that compound. every molecule of water has all the physical and chemical properties of water. that’s because every molecule of water is made of the same elements in the same proportions: two hydrogen atoms and one oxygen! which of the following is a true statement? a every molecule of the same compound will have different properties. b every molecule of a compound has the same proportion of elements. c molecules can be physically separated into smaller units of a compound. d molecules cannot be represented by chemical formulae.
Answers: 1
Biology, 21.06.2019 17:30
Which system revise and send electrical signals throughout the body
Answers: 1
Biology, 22.06.2019 03:30
Which type of respiration takes place when there is no oxygen present
Answers: 2
Biology, 22.06.2019 10:00
Suppose you use three different scale to weigh a bag of organges. one scale says the nag weighs 2.1 lb, and third says it weighs 2.1 lb. the actual weight of the bag of organges is 2.153 lb. which of the following best decribes these results?
Answers: 3
These cells are part of the domains archaea and bacteria. prokaryotes eukaryotes...
History, 19.10.2019 18:10
History, 19.10.2019 18:10
History, 19.10.2019 18:10
Mathematics, 19.10.2019 18:10
Physics, 19.10.2019 18:10
Mathematics, 19.10.2019 18:10
Social Studies, 19.10.2019 18:10
Chemistry, 19.10.2019 18:10
Arts, 19.10.2019 18:10
History, 19.10.2019 18:10
English, 19.10.2019 18:10