Which is not a property of a pure substance

Is mercury a terrestrial or gaseous planet

What is another name for the dependent variable in an experiment? A. A manipulated variable B. A responding variable C. A controlled variable D. An independent variable

Evaluate the force a skateboard exerts on you if ur mass is 60kg and you push on the skateboard with a force of 60N?

What happens when an object with a higher density is placed in a container with a lower density liquid?

Suppose you see two stars: a blue star and a red star. Which of the following can you conclude about the two stars? A) The blue star has a hotter surface temperature than the red star. B) The blue star is more massive than the red star.

Sulfur oxides (SO2) are responsible for A) global warming. B) greenhouse gases. C) producing acid rain. D) destroying the ozone layer.

During a collision between a photon and an electron, there is conservation of

To produce change in motion, a force must be a (n) A) balanced force B) unbalanced force C) frictional force D) gravitational force

What is meant when Earth's systems are said to be "dynamic"? they are all the same type they are slow moving they cannot be measured they are constantly changing

Which of the following statements about electrons is FALSE? Group of answer choices the closer an electron is to the nucleus, the more strongly the electron is attracted to the nucleus and therefore the more potential energy the electron has