2. a geologist working in a national park finds a mineral. they are carrying a kit that contains a penny, a hand lens, a piece of tile, a geologic hammer, and a jackknife. describe how the geologist can use these items to determine some of the mineral’s characteristics. (4 points)

you will need to write about all 5 tools in the geologist’s kit and what properties of the mineral that they could observe with them. remember to also write about all 5 properties of minerals: streak, luster, cleavage, fracture, and hardness

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?

2ki + pb(no3)2 → 2kno3 + pbi2 determine how many moles of kno3 are created if 0.03 moles of ki are completely consumed.

Chris is about to do an experiment to measure the density of water at several temperatures. his teacher has him prepare and sign a safety contract before beginning the experiment. which term is mostlikely part of the safety contract