1. Intro to General Chemistry

Which indicator most likely suggests that a chemical change is taking place?

Which of the following gases is a major contributor to the greenhouse effect?

Chemical products such as hair colors, lighteners, perms, and relaxers primarily affect which property of hair?

Which of the following is a reliable indicator that a chemical change has occurred during a reaction?

Which of the following best explains why both nuclear and chemical changes can occur in matter?

Which element present in a CFC or HCFC molecule is primarily responsible for ozone depletion in the stratosphere?

Which of the following best explains why different substances have different chemical properties?

Which statement correctly describes glucose (C6H12O6)?

Which of the following best explains why noble gases are so unreactive?

Why is photosynthesis described as a chemical reaction?

What typically happens when zinc is exposed to air?

Which of the following compounds contains nitrogen?

Which of the following is represented in a chemical formula?

Which analytical technique examines both physical and chemical properties to determine the presence of abnormal elements in a sample?

Which of the following statements about minerals is true?