How does a pulley system achieve a mechanical advantage

Shari was in the kitchen when she heard a crash. She went into her bedroom and found her window broken and a baseball lying on the ground. Shari said "this baseball broke my window.

What can elements be classified as?

What are 3 or 4 liquids that dont mix

A sample of gold (Au) has a mass of 45.65 g. A) Calculate the number of moles of gold (Au) in the sample. Show your work and highlight your final answer. B) Calculate the number of atoms of gold (Au) in the sample. (Use your answer from Part A.

Which statement describes nuclear binding energy? It is the difference between the masses of the protons and neutrons and the mass of the nucleus. It is the energy that is required to bind protons and neutrons together in a nucleus.

What does berkelium react with

Classifying living things

Find the parent acid and parent base of al2 (co33, determine if they are strong or weak, and determine if the salt is acidic, basic, neutral, or unpredictable.

A syringe contains 589 mL of CO at 325 K and 1.2 atm pressure. A second syringe contains 473 mL of N2 at 298 K and 2.6 atm. What is the final pressure if the contents of these two syringes are injected into a 1.00 L container at 0.00°C?

Which pair of elements can form an ionic compound? A) Two atoms of hydrogen B) One atom of sodium and one atom of fluorine C) One atom of calcium and one atom of chlorine D) Two atoms of hydrogen and one atom of oxygen