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Questions (404)

In this reaction, 407 mL of CO2 are collected over water. The temperature in the room is 19 ºC and the barometric pressure is
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A community 5K race has if there are distinct awards for first second and third place how many ways can the war be given?
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8!
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P(8, 12)
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P(not 8)
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P(6 or 8)
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P( bouncy balls or yo-yo
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P12 in geometry
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A DVD case contains 7 comedies and 9 action movies. Suppose you select a movie at random on Friday night, don’t replace the
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A number is randomly chosen between 1 and 50. What is the probability that the number is not a multiple of 6?
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2. 47 views
What’s the partial pressure of carbon dioxide in a container that holds 5.0 moles of carbon dioxide, 3.0 moles of nitrogen,
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If I place 3.0 moles of N2 and 4.0 moles of O2 in a 37 L container at a temperature of 250 C, what will the pressure of the
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To generate a new seating chart, a number between 1 and 30 is randomly assigned to each student. Let A = an even number and B =
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Samples of Neon and helium are placed into separate containers connected by a pinched rubber tube as shown. The sample of Ne is
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Determine the pressure CHANGE when a constant volume of gas at 1.00 atm is heated from 20.0 °C to 30.0 °C.
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A 3.5 liter sample at 20 ºC and a pressure of 650 mmHg is allowed to expand to a volume of 8570 mL. The final pressure of the
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If 15.0 liters of neon at 25.0 °C is allowed to expand to 45.0 liters, what is the new temperature in ºC?
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The volume of a gas is 5.80 L, measured at 2.54 atm. What is the pressure of the gas in mmHg if the volume is changed to 9.65 L?
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A 3.44 L expandable container is heated until its temperature increases from 0.0 ºC to 70 ºC. What is the new volume if the
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A toy balloon has an internal pressure of 1.05 atm and a volume of 5.0 L. If the temperature where the balloon is released is
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567.8 kPa = ? atm
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convert 25 °C into K
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Convert 5.38 kPa into mmHg
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Convert 3.20 atm into kPa
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Convert 125 mmHg into atm
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Find the pH of a solution containing 0.258 g of nitrous acid in 978 mL of water
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The hexagonal prism and hexagonal pyramid have the same base and the same height. The volume of the hexagonal prism is 66 cubic
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custom fish tank shaped like a rectangular prism needs to have a length of 20 inches, a width of 18 inches and hold a volume of
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Find the molarity of the base. If the acid is has 0.1627 M and 25.00 mL
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Write a balanced equation for the neutralization of hydrochloric acid and barium hydroxide
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Find the molarity of the calcium hydroxide solution, given that 428 mL of it is neutralized in a titration by 115 mL of 6.7 x
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Write a balanced equation for the neutralization of calcium hydroxide and nitric acid
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If it takes 10.0 mL of 2.0 M H 2SO4 to neutralize 30.0 mL of KOH, what is the molarity of KOH?
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How many moles of NaOH are needed to neutralize 0.010 L of 0.20 M of chromic acid
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How many mL of 0.10 M barium hydroxide are required to neutralize 25.0 mL of 0.50 M of nitrous acid?
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2. 64 views
If it takes 15.0 mL of 0.40 M NaOH to neutralize 5.0 mL of sulfurous acid, what is the molarity of the acid solution?
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2. 39 views
How many moles of phosphoric acid are needed to neutralize 5.0 moles of sodium hydroxide?
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2. 63 views
What is the molarity of calcium hydroxide if 20.0 mL of it is neutralized by 28.0 mL of 0.56 M hydrobromic acid?
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Find ka of h3o+ +C6H706-\ Hc6H706 + H2O assuming HC6H7O6 is aqueous
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You will first need to make 100.0 mL of a 0.010M solution of HC6H7O6
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You begin with a 0.050 M initial solution of HClO2 and when the reaction comes to equilibrium, the pH is measured to be 2.1. Use
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What is the Ka value for the acid H3PO4 + H2O -> H2PO4- + H3O+.Fill in the following ICE table to help you.
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What is the Ka value for this acid? Fill in the following ICE table to help you.
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Write the reaction of phosphoric acid in water. Assume that only one H+1 is ionized
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Find the pH of a solution containing 0.344 g of barium hydroxide in 620 mL of water.
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2. 66 views
Find the pH of a solution containing 0.344 g of barium hydroxide in 620 mL of water.This is a base. That means the M you find
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The pOH of a solution is 2.3, what is the hydroxide ion concentration?
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2. 42 views
The pH of a solution is 1.3, what is the hydroxide ion concentration?
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Convert a pOH value of 12.1 to [H3O+].
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Convert a pH value of 3.7 to [OH-].
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Convert a pOH value of 9.95 to [OH-].
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Convert a pH value of 6.37 to [H3O+].
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pOH of [OH-] = 0.0074
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pOH of H3O+] = 0.00020
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Poh of [H3O+] = 0.00020
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Ph of [OH-] = 0.024
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What is the ph of [H3O+] = 0.0010
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Find the pOH of a solution containing 5.23 g of HBr in 628 mL of water.
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solution is made by diluting 22 mL of 4.2 M HCl until the final volume of the solution is 1.75 L. What is the pH? Recall how we
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Determine the pH of a 2.2 x 10-11 M NaOH solution.
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What is the [H +] of vinegar if the pH is 2.1
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What is the [OH-] of a solution of baking soda with a pH of 8.5
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2. 37 views
Which of the following is an example of pronoun antecedent agreement?The birds flew away with his nest. The dog wagged it's
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What is the correct active voice version of the sentence "The letter was sent by Jhon"?The letter sent jhon Jhon sent the letter
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Which of the following is an example of a gerund as a subject?They talked about going to the beach Running is good exercise He
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What is the function of the gerund I'm this sentence "I enjoy reading"?Direct object Complement Object of preposition Subject
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Which of the following is an example of a particular used as an adjective?She has already eaten dinner The broken vase lay on
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Which of the following is an example of a particular phraseThe broken vase Reading books His passion for singing Standing by the
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Which of the following is an example of a participle phrase?The broken vase Reading books His passion for singing Standing by
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Which two of the following is an example of a gerund phrase?Running in the park The broken vase Surprised by the news Holding
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Which of following sentences demonstrates subject-verb agreement?Someone enjoy a good laugh Someones enjoy a good laugh Everyone
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2. 87 views
Which of the following sentences demonstrates subject-verb agreement?Every students have their own textbook Each student has
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2. 89 views
Which of the following sentences demonstrates subject-verb agreement?The cats jumps over the fence. The cat jumps over the
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2. 69 views
The histories of kush and Egypt are intertwined with each other because they were reliant on each other how did their
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How were the ancient Egyptians achievements in the fields of astrology and mathematics helpful to farmers
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How were Egyptian farmers able to produce surplus?
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Because there was less land to farm in kush than in Egypt which of these is correctKushites were more motivated to trade Many
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Because there was less land to farm in kush than in EgyptKushites were more motivated to trade Many kushites moved to Egypt
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use the drop down box to answer this question because there was less land to farm in kush than Egypt
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What is the correct order of the social structure of ancient Egypt place the highest group at the top and the lowest group at
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2. 86 views
in order to overcome death the Egyptians believed that they needed to
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I'm ancient Egypt those responsible for using hieroglyphics to read important Information and maintain records were called
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How did its location help Kush become a powerful kingdomIt created competition with the powerful Egyptian kingdom It provided a
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2. 78 views
How bad does a girl jumping up and landing down on a boys balls hurt
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How did hatshepsut change Egypt during her reign as Pharoah
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Select the correct response from the drop down menu The purpose of tomb paintings was toProvide the buried person with the
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2. 81 views
Which effect did continued trade with Egypt have on Kush civilizationKushites adopted many elements into Egypt culture Kushites
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2. 72 views
Because the Egyptians constructed early forms of glass and mortar for setting bricks, scholars know they were skilled in which
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Which of the following were important achievements of the kushites?Select the three correct answers The defeat of the assyrian
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For which of the following is the great Pharoah Rameses 2 knownBuilt monuments Wrote famous literature Was a female Pharoah
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What does ambidextrous mean
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Which is the most likely meaning of the word anachronousAway from the correct time Happening quickly Not in the right time
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Which word defines the word subterraneanBelow ground Having both land and water Acting as a replacement Frightening
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Which word is the best definition of the word "altruism"Selfishness Wealth Generosity Patience
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Which word is a synonym for kindlyBelated Benighted Beguiled Benevolent
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Select the correct answer from the list l. Use digital reference materials to help you
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Which word has a prefix that means "against"?Distend Abnormal Contradict Excoriate
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Match the root or affix with its meaning-I've Omni- -ic Ultra-
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Rupert wants to write a program where an archer will shoot an arrow six times which of the following coding terms should be used
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River designs a program that will make a cartoon baby jump up and down but when it is run, the baby appears but doesn't move
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2. 113 views

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