There are four substances, a, b c and d. a and c are pure substances. they cannot be broken down into anything simpler by chemical methods. b consists of a and d, which are not chemically bonded together. d is a pure substance. we can decompose d into a and c using chemical methods. how would we classify substance a, c, and d? substances abcd question 14 options: substances a and c are compounds, because they are pure substances that bond together to make substance d and cannot be broken using chemical processes . substance d is a mixture, because it is a pure substance made up of a and c. substances a and c are elements, because they are pure substances that bond together to make substance d and cannot be broken using chemical processes. substance d is a compound, because it is a pure substance made up of a and c. substances a and c are elements, because they are pure substances that bond together to make substance d and cannot be broken using chemical processes . substance d is a mixture, because it is a pure substance made up of a and c. substances a, c, and d, are elements. all pure substances are elements.
Answers: 1
Chemistry, 22.06.2019 09:00, yogibear5806
Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.
Answers: 2
Chemistry, 22.06.2019 14:20, greenbyron88
Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull
Answers: 1
There are four substances, a, b c and d. a and c are pure substances. they cannot be broken down int...
Mathematics, 30.04.2021 23:00
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