Which of the changes are physical changes

State Boyle's, Charles's, and Gay-Lussac's laws using sentences, then equations

What causes the plates to be pulled apart?

What is the amount of protons neutron and electrons in the element Calcium?

Match the term with its description. Match Term Definition Aerobic respiration A) The breakdown of food to create energy in the presence of oxygen Alcoholic fermentation B) The production of energy without the presence of oxygen Anaerobic

Consider a 20.0 % (m/v) solution. how can this be written as a conversion factor?

Which of the following is true about a redox reaction? In a redox reaction, an electron is lost by the reducing agent. In a redox reaction an electron is lost by the oxidizing agent.

Is the equation above balanced? How do you know? Mg + 2HCl → MgCl2 + H2

What characteristics do atoms of carbon-12, carbon-13, and carbon-14 have in common?

Which of the following changes would decrease the rate at which a solid solute dissolves in a liquid solvent? A. Decreasing pressure B. Decreasing surface area C. Increasing rate of stirring D. Increasing temperature

Helium, neon, and argon are examples of A) metals B) metalloids C) noble gases D) transitional metals