Which of the following elements is classified as a metalloid on the periodic table?

Which of the following elements is a nonmetal essential for life and known for its role in respiration?

Which element is classified as a metalloid and is commonly used in semiconductors?

Which of the following elements is a metal commonly used for its excellent conductivity properties in electrical wiring?

Which of the following elements is classified as a nonmetal and is primarily responsible for the acidity in car batteries?

Which of the following is an example of a chemical change?

What type of change occurs when baking soda and vinegar are mixed and bubbles form?

When a piece of paper is torn into smaller pieces, what type of change has occurred?

Which process is an example of a physical change?

Which action is an example of a physical change?

Which of the following illustrates a physical change?

Which element is shiny, dense, and classified as a metal on the periodic table?