Chemistry

Complete the following molecular models to represent balanced equations bydrawing additional molecules but not changing the identity of them. When you aredone, the total number of atoms of each element on the reactant side of the equationmust equal the total number of atoms of the same elements on the product side.a)
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Convert 1.65 moles of nitrogen gas at STP to liters.What is the coefficient of the scientific notation answer ? What is the exponent of the scientific notation answer ? How many significant figures are there in the answer ? What is the right most significant figure in the answer ?
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A bottle contains 2.5 moles of KOH dissolved in water, and the molarity of the solution is 0.16 M. What volume of solution is in this bottle?
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The _______________________________________ of a plant cell are where photosynthesis takes place.
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Describe how the size of the sun compares to the sizes of the other stars.
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How does Gibbs free energy predict spontaneity?O A. If AG > 0, the reactigais spontaneous.B. If AG = 0, the reaction is spontaneous.C. If AG < 0, the reaction is spontaneous.O D. If AG = TAS, the reaction is spontaneous.
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plz help im gonna cry im in class rn
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Which of the following adaptations found in animals in deciduous forests protects against predators?a.fat storageb.migrationc.hibernationd.camouflagePlease select the best answer from the choices providedABCDShould be D
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what are twin primes between 1 to 100
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Please answer as many question as possible ty
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Investigation Question: How do organisms get their genes?THIS ANSWER SHOULD BE 3 OR MORE SENTENCES.
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What is the poh of a solution with a ph of 1.30? PLZZ ANSWER
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URGENT PLZ HELPWhich of the following statements is true?a. In an endothermic process heat is transferred from the surroundings to thesystem.b. In an exothermic process heat is transferred from the surroundings to thesystem.C. The surroundings will feel cooler in an exothermic process.d. The surroundings will feel warmer in an endothermic process.
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Regions that receive up to 20 inches of rainfall per year are referred to as __________ because they receive more precipitation than most deserts.semiarid desertspolar desertscoastal desertssubtropical deserts
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help i give more point this time
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Ethanol is a common laboratory solvent and has a density of 0.789 g/mL. What is the mass, in grams, of 133 mL of ethanol?
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how is acid different from base
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LEVEL 3Write the correct orderof letters to the finish line.A E B E CExample:ABCGHGHNezaNot correct
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What must happen in order for water to change state?A. It must maintain its thermal energy level.B. It must absorb or release energy.C. It must be insulated.D. It must convert thermal energy to solar energy.
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If you start with 13 mole H2O and 50 grams of O2 what is the percent yield of H202 if 100 grams of H202 is actually made?
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1. Which of the following would not be a good way to describe a body system?A. Body systems are like computer programs that have to communicate with eachother in order to make the computer work.B. Body systems are like runners in a marathon who each run alone and don't need theother runners to finish the race.C. Body systems are like machines with many different moving parts.D. Body systems are like individual parts of one big story.
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I NEED HELP PLEASE ASAP THANK YOU!
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An ideal gas in a sealed container has an initial volume of 2.80 L. At constant pressure, it is cooled to 18.00 C, where itsfinal volume is 1.75 L. What was the initial temperature?Ti ='c
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What is the formula for sodium selenide?
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