Master Chemistry with Fun Quizzes & Brain Teasers!

for ever action forces there is (n) _ forces
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If I initially have a gas at a pressure of 12 atm, a volume of 23 Liters and a temperature of 200K, and then I raise the pressure to 14 atm and increase the temperature to 300K, what is the new volume?
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CAPITAL LETTERSin a genotypemean...
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Balance the equation below, using the smallest whole-number coefficients. ____Fe(s) + ____ O2(g) + ____ H2O(l) ____Fe(OH)2(s)
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What is the molarity of a solution formed by dissolving 100 g of Ca(No3)2 and 450 mL of solution
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If you are given a 2,900-gram sample of Hydrogen, and hydrogen has a half-life of 2,450 years. How much hydrogen is left after 19,600 years?
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Consider the following information. A+ KOH B+ 2 KNO3What is the molecular formula of A, what is the molecular formula for B? You have to balance the A + KOH part of the equation. MM of B = 62.068g/molB is 38.67 % C, 9.67% H and 51.56 % O
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How Do Glow Sticks Glow? Explain in 5-6 sentences. IF NOT, YOUR ANSWER WILL BE DELETED
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PLEASE HELP MEWhich statement is true about HCl? (15 points) Select one: a. It is a salt because it increases the concentration of metallic ions. B. It is a salt because it is formed by the reaction of an acid and a base. C. It is an acid because it increases the concentration of hydroxyl ions. D. It is an acid because it increases the concentration of hydrogen ions.
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How do you know a physical change has occurred when evaporating water produces gaseous water?AA chemical change has resulted in a new substance.BA chemical change has resulted in a change of state.CA physical change has resulted in a phase change, not a change in composition.
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URGENT HELP NEEDED! PLEASE ANSWER WITH EXPLANATION* Much appreciated 1) An 85.0 g sample of copper is initially at 22.2 C What is the final temperature if the sample absorbs 2.35 kJ of heat? The specific heat of Cu is 0.385 J/(g^ Degree C)-----------------------------------------------------------------------------------------------------------------------------2) A 75.0 g sample of aluminum is heated to 65.3 C then allowed to cool. What is the final temperature if the sample releases 2.07 kJ of heat? The specific heat of Al is 0.903 J/(g degree C)
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The particle picture is best described asa) a liquid compoundb) a liquid elementc) a solid elementd) a solid compounde) a liquid mixture
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the particle picture is best described as...an elementan atoma compounda pure substanceboth a pure substance and a compound
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Why do solids expand on heating?
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The temperature of a gas is 100 K and its volume is 500.0 ml. If the volume increases to 1,000.0 ml,what is the new temperature of the gas?
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A gas occupies 10.00L at 100k and exerts a pressure of 1.71atm. What volume, in liters, will the gas occupy if the temp is increased to 290.29K and the pressure is increased to 9.70atm?
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what is the drag force acting on a car with a resultant force of 600N when the engine is pushing it with a force of 11,000N
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how chemistry has affected the study microbiology
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Determine the total kilojoules in two tablespoons of crunchy peanut butter that contains 6 g of carbohydrate, 11 g of fat, and 9 g of protein.
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I really need to pass chem, someone please help me!
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Asap help It's very important
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Extra Stoichiometry Practice1. How many grams of aluminum oxide can be formed by the reaction of 38.8 g of aluminum withoxygen?4 Al (8) + 3 O2(g) 2 A12O(s)
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Which statements describe both male and female reproductive systems? Select three options
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6. How much water must be added to 600 mL of a 0.15 mol/L Ca(OH); solutionto make a solution with a concentration of 0.10 mol/L? (4 marks)
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