Perform the following operation, observing significant digits: (26.9 m)(5.0 m). 1.3 m2
13 m2
0
130 m2
1300 m2

Which real-world scenarios below represent physical and chemical changes? -running a car -exploding fireworks -mixing water and powdered drink mix -combining oil and vinegar to make salad dressing -taking aspirin for a headache -diluting bleach with water-digesting dinner-spreading peanut butter on bread

How did planetesmals form planets? a. they broke apart into smaller chunks.b. they collided and stuck together.c. they cooled and pulled ice together.d. they began to rotate.

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.