WILL VOTE BEST & GIVE 15 POINTS
When
you
walked in to Mrs. Bateast's lab today, you...
WILL VOTE BEST & GIVE 15 POINTS
When
you
walked in to Mrs. Bateast's lab today, you noticed that your partner group had a 0.05432
ml mixture sample of sand and water in a beaker. When your group began the lab to separate the
mixture in to different weight boats, you thought it would be very difficult to remove the sand. As a
result, you added another 5.2ml of water to assist with removing it.
Determine The number of significant figures in your original sample.
Answers: 3
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Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
Answers: 1
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Astudent states that 9.0 g of baking soda will form an unsaturated solution in 100 g of water. what do you need to know to decide whether this statement is correct? a. the temperature of the water and the molar mass of baking soda b. the percent by volume of the solution and the solubility of baking soda c. the temperature of the water and the solubility of baking soda at that temperature
Answers: 1
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