You uses 500 mg of sucrose and placed it into 200ml of water what is the concentration of this solution?

21 Which mathematical expression represents the heat of reaction for a chemical reaction? (1) (the heat of fusion) - (the heat of vaporization) (2) (the heat of vaporization) - (the heat of fusion) (3) (the potential energy of the products) - (the

There are two isotopes of boron: boron-10 and boron-11. Explain, in terms of weighted average atomic mass, the difference in percent abundance of each of the isotopes of boron.

Which best describes the Tyndall effect? the scattering of light by solutes in a mixture the scattering of light by solvent in a solution the scattering of light by solutes in a solution the scattering of light by particles in a mixture

Which type of eruption appears to be the more hazardous to humans?

Which atom in the ground state requires the least amount of energy to remove its valence electron? (1) lithium atom (2) potassium atom (3) rubidium atom (4) sodium atom

Trisha and her lab partner filled a beaker with 150 milliliters of a 0.10 M HCl solution. How many moles of HCl are in the beaker? Remember, molarity = moles liter.

Why is the correct name of compound Silicon Pentoxide and NOT Silicon Pentoxide?

10. The density of aluminum is 2.7 g/cm². A 27g piece of aluminum will have what volume?

Which type of heat transfer involves the movement of warmed material? A. radiation B. conduction C. convection

During which stage of the cell cycle dies the cell condense chromosomes and break down the nuclear envelope