An emerald gemstone is an impure form of the mineral beryl, be3al2si16o18. what is the percentage of silicon in the mineral?
a. 6.59%
b. 54.9%
c. 35.2%
d. 3.30%
e. 3.43%

Clouds form when water vapor to form small droplets. a. humidifies b. condenses c. evaporates d. precipitates

Janel’s class studied properties of matter and how matter can change. janel decided she would do an experiment mixing baking soda and vinegar.question: describe the properties of baking soda and vinegar, and explain the changes that janel should see when she mixes the two types of matter. •first, identify the physical state of matter of baking soda. describe another property of baking soda. •next, identify the physical state of matter of vinegar. describe another property of vinegar. •then, explain what janel should see when she mixes the baking soda and vinegar. •describe the states of matter of the new materials that are formed. •explain how janel can be certain a change has occurred. me

When you perform this reaction, what could remain at the end of the reaction? check all that apply. excess reactant aqueous copper chloride excess reactant aluminum oxygen product solid copper carbon dioxide product aqueous aluminum chloride water