True or false a scientists opinion is a valid source of information to use in a scientific investigation?

Is bromine a impure substance?

Which best explains why water boils in a pot sitting over fire? Heat energy is created from the thermal energy in the air. Heat energy is transferred from the water to the fire. Thermal energy from the fire moves to the water in the form of heat.

How do molecules appear in gas

What is spring tide and neap tide? How are they different from daily tides?

For beta radiation, what stops its penetrating abilities? aluminum a piece of paper skin thin fabric

What Word means the gradual change and build up of organisms in an enviroment

If you see the Sun is high in the sky, what can you say about the SUN as viewed from the opposite side of Earth at the same moment?

What element has 8 valence electrons

Which of the following best describes a metal? Brittle, shiny, and solid Brittle, dull, and low density Malleable, shiny, and able to conduct heat or electricity Malleable, dull, and solid, liquid, or gas at room temperature?

Which of the following errors could cause your percent yield to be falsely high, or even over 100%? Select ALL that apply. A.) Heating the sample too vigorously. B.) Handling the crucible directly with your hands. C.