How is a mixture different from a compound? question 9 options: a. mixtures are commonly found in nature, whereas compounds are not. b .each substance in a mixture keeps its characteristic properties, but in a compound the different elements are bonded together to form a new substance. c. solids, liquids, and gases can form mixtures, but compounds can only be liquids. d. mixtures have two or more components, and compounds are only made up of one type of element.

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.

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

Given the following equation: 2a1 + 3mgcl2 --> 2alcl3 + 3mg how many moles of aluminum chloride are produced from 2.5 moles of magnesium chloride?