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Questions in chemistry

[Done] Apply the law of conservation of mass to explain how mass is conserved when water evaporates.

[Done] What is the physical state of each of these materials at room temperature? a. gold b. gasoline c. oxygen d. neon e. olive oil f. sulfur g. mercury

[Done] The amount of space an object occupies (6-letter word): _______

[Done] How can there be more than 1000 different atoms when there are only about 100 different elements?

[Done] What are the charges of carbon-12, carbon-13, and carbon-14?

[Done] Classify these substances as acidic, basic, or neutral: - Vinegar - Baking soda - Tomato juice - Sugar

[Done] A camper burned a piece of paper to start a campfire. Is burning paper a physical or chemical change? Why? If you said chemical, what are the reactants and products? The ash has less mass than the paper. Was mass conserved during the reaction? Explain.

[Done] Argon has three naturally occurring isotopes: argon-36, argon-38, and argon-40. Based on argon's reported atomic mass, which isotope do you think is the most abundant in nature? Explain.

[Done] How does math relate to electrons and ion formation?

[Done] Photosynthesis is represented by the equation: [tex]6CO_2 + 6H_2O \rightarrow C_6H_{12}O_6 + 6O_2[/tex] 1) How many molecules of carbon dioxide are shown in this equation? A. 6 B. 12 C. 8 D. 24