Physics, 10.05.2021 01:00 sweetgigi2364
Can i get some help???
Suppose that a substance in a beaker is heated over a burner in a science lab. Which observation would most likely indicate that a chemical change has occurred in the substance?
A. If the substance is a liquid or solid, an increase in temperature would indicate a chemical change.
B. If the substance is a liquid, a change of some of the liquid to gaseous form would indicate a chemical change.
C. If the substance is a solid, a change of some of the solid to liquid form would indicate a chemical change.
D. If the substance is a liquid or solid, production of an odor would indicate a chemical change.
Answers: 3
Physics, 22.06.2019 03:00
An equinox occurs when a. neither end of earth's axis is tilted toward or away from the sun. b. the north end of earth's axis is tilted away from the sun. c. the north end of earth's axis is tilted toward the sun. d. earth's axis is parallel to the sun's rays. select the best answer from the choices provided a b c d
Answers: 1
Physics, 22.06.2019 11:30
If forces acting on an object are unbalanced. true or false
Answers: 1
Physics, 22.06.2019 18:40
Which body is in equilibrium? (1) a satellite orbiting earth in a circular orbit (2) a ball falling freely toward the surface of earth (3) a car moving with a constant speed along a straight, level road (4) a projectile at the highest point in its trajectory
Answers: 2
Can i get some help???
Suppose that a substance in a beaker is heated over a burner in a science l...
Mathematics, 25.05.2021 20:10
Mathematics, 25.05.2021 20:10
Physics, 25.05.2021 20:10
Chemistry, 25.05.2021 20:10
Mathematics, 25.05.2021 20:10
Mathematics, 25.05.2021 20:10
Mathematics, 25.05.2021 20:10
Mathematics, 25.05.2021 20:10