Which of the following is a clue of a chemical change? a. iron changes color when heated b. gas bubbles form in boiling water c. balls of wax form when melted wax is poured into ice water d. a gas forms when vinegar and baking soda are mixed

The summit of chimborazo, in ecuador, which is at a distance of about 6,384 km from the earth's center. the bottom of the mariana trench, in the western pacific ocean, which is nearly 6,370 km from the center of the earth. on the surface of earth on the equator line.

While you are driving in the lane next to the curb on a multi-lane road the car on your left suddenly moves toward you lane. they are about toy crash into your front fender. you

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass