1)Describe pure sand and pure salt. Use a hand lens if available to get more detail. Type a description. a)sand b)salt 2)Investigate the dissolving properties of pure sand and pure salt. Which one will be caught in the filter paper if each substance was mixed with water and then filtered? Filter both separately if you are not sure. Devise a plan to get pure sand and pure salt in different piles from a 1 gram sample of the mixture. Include in your plan:

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

Write the formula for the following chemicals. 7. e. trinitrogen tetraoxide a calcium phosphate f. magnesium acetate b. potassium sulfide g nickel(iii) cyanide c carbon dioxide h. silver sulfate d. cobalt(ii) chloride

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.