Upon hearing a small sample of red powder, it darkens and then suddenly changes into a shiny silvery liquid. This student can conclude:

What is inside the nucleus of an atom

Why is it appropriate that galileo galilei is known as a leader in the study of space

Calculate the mass of ethylene glycol (C2H6O2) that must be added to 1.00 kg of ethanol (C2H5OH) to reduce its vapor pressure by 12.0 torr at 35∘C. The vapor pressure of pure ethanol at 35∘C is 1.00*102 torr.

How many valence electrons are in a phosphorous ION? Would it have a full shell? A. 5 B. 8

Conceptos de agentes químicos

Is a sample of liquid nitrogen more dense than a sample of nitrogen gas

You have a balloon containing 1 L of air at STP in a vacuum chamber. What will the volume of the balloon be when you reduce the pressure by half and increase the temperature to 373 K?

Which method will correctly determine whether the forces on an object are balanced or unbalanced? A. Multiply the forces in the horizontal direction by the forces in the vertical direction. B.

Carbon is found in all known forms of life. Which statement best describes why carbon is uniquely suited to forming macromolecules such as those found in living organisms? A. Carbon forms large compounds that are not chemically reactive. B.

Name a type of asteroid and give a description.