Chemistry, 11.07.2019 14:50 sakinahunt
What is one characteristic of a sample of matter that indicates it is a pure substance? a) it can be separated using by a physical means, such as filtering. b) the components in a pure substance do not have to be in definite ratios. c) if the composition of a sample varies, the sample is a pure substance. d) if the composition of a sample is fixed, the sample is a pure substance.
Answers: 1
Chemistry, 22.06.2019 06:00
An atom of lithium (li) and an atom of chlorine (cl) engage in a chemical reaction. which correctly describes the structure of the resulting chemical compound? hint: consider the class of each element. the chemical compound will have a network structure. the chemical compound will have triple bonds. the chemical compound will have a ball-and-stick structure. the chemical compound will have double bonds.
Answers: 2
Chemistry, 22.06.2019 11:30
Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.
Answers: 3
Chemistry, 22.06.2019 18:00
The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.
Answers: 1
Chemistry, 22.06.2019 19:00
Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions
Answers: 3
What is one characteristic of a sample of matter that indicates it is a pure substance? a) it can b...
Computers and Technology, 29.06.2019 22:00
History, 29.06.2019 22:00
Mathematics, 29.06.2019 22:00
Mathematics, 29.06.2019 22:00
History, 29.06.2019 22:00
Mathematics, 29.06.2019 22:00
Mathematics, 29.06.2019 22:00
Mathematics, 29.06.2019 22:00