If you roll a ball down a ramp, which factor will have the greatest effect on the amount of friction created? (a) Force applied to the ball (b) Speed of the ball (c) Texture of the surface (d) Weight of the ramp

What is the heat of solution? A. the amount of heat released when a vapor changes into a liquid B. the amount of heat required to change a vapor into a liquid C. the amount of heat required to change a solid into a liquid D.

What is hydrophobic exclusion?

Which of the following explains how one of the postulates in John Dalton's atomic theory was later strengthened? Various scientists found that atoms of a particular element have unique properties.

What is the 250 green numbers on the side

Which sample has the lowest entropy? (1) 1 mole of KNO3 (l) (3) 1 mole of H2O (l) (2) 1 mole of KNO3 (s) (4) 1 mole of H2O (g)

Lewis dot structure for SeO

Why do you think the transition metals are 10 columns wide?

What is released when a election returns to a lower state of energy

Which of the following elements has its highest energy electrons in an "s" atomic orbital? radiium (Ra) neon (Ne) aluminum (Al) lanthanum (La)

About how long does it take for the Sun to make one rotation on its axis?