Master Chemistry with Fun Quizzes & Brain Teasers!

the kind of friction that shows a falling object is it gravity, free fall
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If you have a substance that has molarity of .200M and then you increase the molarity to .300M, which molarity would increase the rate of reaction, if used in an experiment? Why? PLEASE ASAP due in an HOUR
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In which diagram would the block of wood have the greatest acceleration?
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Which element will reduce Mg2+ to Mg?a) Fe b) Ba c) Pb d) Ag
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NEED ASAP WILL MARK BRAINLIEST ON TIMERhi A student determines that she used 0.0665 mol of sodium hydroxide (NaOH) to completely titrate 25.00 mL of sulfuric acid solution (H2SO4). What is the molarity of the sulfuric acid?0.00131 M0.00262 M1.31 M2.62 M
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Describe, in detail, the arrangement of the periodic table, and why it is sometimes referred to as the "chemists' calendar". Describe the rows and columns. What do they tell us about the elements in each row or column? What other trends are on the periodic table?
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briefly describe how a potentiometric ph meter works. [Hint describe how the pH meter measures the amount of H+ or OH- ions in a sample]
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define the term inertia
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If the volume of a spherical ball is 113.04 cubic inches, what is the radius?3 inches9 inches18 inches27 inches
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1. Chromium metal is reacted with 40.0mL of 3.0M tin (IV) chloride in the following reaction:4Cr + 3SnCl4 --> 4CrCl3 + 3SnHow many grams of tin will be produced? (3 marks) Please upload your work.(Non-anonymous question )
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describe the law of conservation of momentum
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what does it mean to say that momentum is conserved
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the attraction between two oppositely charged atoms or group of atoms is which type of bond
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which law motion is used to explain how to a rocket takes off
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Paratrooper not hurt while landing,why?
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why do we need to standardize EDTA in determination of water hardness?
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Grains of sugar dissolve more quickly in tea than do sugar cubes. Which answer correctly describes why this occurs?The sugar grains form a saturated solution. The sugar cube is already at equilibrium.The sugar grains have a greater surface area.The sugar cube is at great pressure.
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Why is salt added to hot chicken soups during cooking besides giving the chicken soups a good taste?The freezing point of water decreases as salt dissolves.The freezing point of water increases as salt dissolves.The boiling point of water increases as salt dissolves.The boiling point of water decreases as salt dissolves.
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If the solubility of sugar at 25C is 211 g/100 g H2O, what mass of sugar can be dissolved in 300 g of H2O?633 g of Sugar105.5 g of Sugar422 g of Sugar844 g of Sugar
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what is the sex-ratio in rajasthan according to 2011 census?
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In a solid to liquid mixture and increase in temperature means?
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1. A 99.8 mL sample of a solution that is 12.0% KI by mass (d: 1.093 g/mL) is added to 96.7 mL of another solution that is 14.0% Pb(NO3)2 by mass (d: 1.134 g/mL). How many grams of PbI2 should form?Pb(NO3)2(aq) + 2 KI(aq) PbI2(s) + 2 KNO3(aq)
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5.Write word equations for the following reactionsa)Burning of Sulphur in oxygen b)Burning of carbon in excess oxygen c)Burning of Sulphur in presence of Iron fillings
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state two differences between metals and non metals with respect to their 1 physical properties 2 chemical properties
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