Master Chemistry with Fun Quizzes & Brain Teasers!

What is the charge of a Liion?
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Convert 15.5 pounds to kilograms. Please and thank you so much!!
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What is the sum of the fractions 2/9+5/9
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1. True or False? The scientific method is defined as a method of researchin which a problem is identified, data is gathered, and a hypothesis iscreated based off the data, then the hypothesis is tested.
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Which of the following elements form +1 ions?A sodium, magnesium, aluminumB strontium, magnesium, calciumC lithium, sodium, potassium
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What components does the solar system appear to have formed from?
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PLSSS HELP WILL GIVE A LOOT OF POINTSThe diagram below shows two metal plates at different temperatures. Plate X is 30 degrees Celsius ( oC) and Plate Y is 50 degrees Celsius ( oC).A.Plate X will become cooler and Plate Y will become cooler.B.Plate X will become warmer and Plate Y will become cooler.C.Plate X will become cooler and Plate Y will become warmer.D.Plate X will become warmer and Plate Y will become warmer.
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Why is the state of matter a physicalproperty of matter?
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Family members on a camping trip decide to make hot cocoa after dinner. They add instant cocoa mix to hot water. What can they do to make the cocoa mix dissolve faster? A stir the hot cocoaB halve the amount of waterC double the amount of cocoa mix addedD add the cocoa mix after the water cools
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b. Water has a specific heat of 4.184 J/gC. If the temperature of 250 g ofwater changes from 22.9C to 14.7C, how much heat energy was removedfrom the water?
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Lakes, rivers, and streams are created due to what stage of the water cycle?
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What large city in Texas will have its third day of rain?
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An increase in which of the following would increase the boiling point of aliquid?
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Which of the following best describes the structure of a nucleic acid?a. Carbon ring(s)b. Globular or fibrousc. Single or double helixd. Hydrocarbon(s)
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Today scientists know that organisms are much less diverse than Darwin imagined. True or false?
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How should this combustion reaction be balanced?C5H8+O2 + CO2 + H20
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Which experimental setup would let a student investigate the connection between kinetic energy and temperature? (1 point) placing one drop of food coloring in a cup with 60 ml of water at 10",placing one drop of od coloring in a second oup with 60 mL of water at 40C placing one drop of food coloring in a cup with 50 ml of water at 10" placing one drop of food coloring in a second cup with 100 ml of water al 10" placing one drop of food coloring in a cup with some of water al 10 placing two drops of food coloring in a second cup with 100 ml of water an 100 placing one drop of food coloring in a cup with some of water at 100 placing two drops of food coloring in a second cup with 50 ml of water at To ONO type here to search
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CAN SOMEONE HELP ME!!!!!!!!!!!!!
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Question 2 of 11Which of these are part of a scientific way of gathering information?A. Fairy talesB. Religious beliefsC. InvestigationsD. OpinionsSUBMIT
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Which of the following units would be best for measuring the mass of a penny?A. Grams B. Kilograms C. Milligrams D. Centigrams
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A petroleum refinery is producing the four products shown in the table. The table also shows the state of matter at room temperature of each of the substances. All of these compounds are molecular compounds consisting of only hydrogen and carbon. Which of the following products is likely to have the highest molecular weight? A. Natural gas B. Gasoline C. Jet fuel D. Paraffin wax
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in the 0 in 0.23 significant
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how many moles of water are in 1.23 times 10^18 water molecules
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What mineral is harder, Calcite or Olivine?
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