A child pulls a sled up a snow-covered hill. The child does 405 J of work on the sled. If the child walks 15 m up the hill, how large of a force must the child exert?

What is the amount of solute per given amount of solvent? 1.) dilution 2.) solubility 3.) saturation 4.) concentration

Let us assume that cu (oh) 2 (s) is completely insoluble, which signifies that the precipitation reaction with naoh (aq) (presented in the transition) would go to completion. cu2 + (aq) + 2naoh (aq) → cu (oh) 2 (s) + 2na + (aq) if you had a 0.

In term of molecules explain what happen to a sugar cube when it is placed into a beaker of water

The process in which a substance changes from a gaseous state to the liquid state is a. critical temperature. b. evaporation. c. absolute zero. d. condensation. user: the transmission of heat requiring the movement of a liquid or a gas is a.

Classify the substances as atomic elements, molecular elements, molecular compounds, or ionic compounds. drag each item to the appropriate bin.

The elements in a star can be determined by analyzing the star's spectrum. Which statement explains why no two elements have the same spectrum? A. Each element has a unique arrangement of electrons. B.

What's the difference between cation and an anion

Where does the largest percent of water exist on Earth?

True or False: It is recommended to use sugar cubes to sweeten lemonade because they have a low surface area.

54,000,000 nanometers equals 0.000000054 megameters.