Chemistry, 10.02.2020 21:27, icantspeakengles
The density of quartz mineral was determined by adding a weighed piece to a graduated cylinder containing 50.3 mL water. After the quartz was submerged, the water level was 64.8 mL. The quartz piece weighed 38.9 g. What was the density of the quartz?
Answers: 2
Chemistry, 23.06.2019 01:30, nikonee
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
Chemistry, 23.06.2019 02:00, xbeatdroperzx
Which statement is true about the model of the electromagnetic spectrum a: it change the frequencies of light. b: it compare wavelengths of light. c: the color of light waves can be changed using the model. d: the intensities of light waves can be decreased using the model.
Answers: 2
Chemistry, 23.06.2019 03:50, mobslayer88
How many moles of potassium are needed to react completely with 12.8 moles of magnessium bromide?
Answers: 2
The density of quartz mineral was determined by adding a weighed piece to a graduated cylinder conta...
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