Free points first one to answer and tell me about your day gets the brainleist

What statement is true about all chemical changes? a) chemical changes can be undone. b) chemical changes cannot be reversed. c) chemical changes change the color of objects. eliminate d) chemical changes do not form new products.

How can symbols and absolute value you to order sets of integars

Which of the following is a resource outside the workplace that will you find information on safety and health issues? a.safety data sheets b.medical manuals c.the osha website d.work task and procedures intruction