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Questions (54)
A base has a pH of 8.5. What is the concentration of OH- ions in the solution?
1 answer
50 views
What would be the pH of .002 moles of HNO3 dissolved in 2 L of water?
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45 views
The pH of a strong acid might be _____ while the pH of a strong base might be _____
The pH of pure water is _____.
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51 views
If the weights of carbon, hydrogen, and oxygen are approximately 12, 1, and 16 g/mol respectively, about how much would 1 mole
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53 views
10 billion oxygen molecules (1 x 1010) is how many moles of molecular oxygen are there?
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42 views
______________ particles can be referred to as one mole of particles.
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12 eggs can be referred to as one dozen eggs.
______________ particles can be referred to as one mole of particles.
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46 views
Coffee is a solution containing caffeine, acids, alkaloids, water, phenols, and many other chemicals. The solvent in the coffee
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59 views
Use the "My solution mode" simulation to complete the activity.
Acid-Base Solutions Describe how you could adjust the settings of
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55 views
Hydrogen selenide (H2Se) reacts with water according to the following equation.
H2Se + H2O → SeH– + H3O+ In three to five
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61 views
The opposing charges of Li+ and Cl-ions cause the solvent molecules to round the ions when LiCl is introduced to the polar
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61 views
In two to five sentences, describe the process by which the ionic compound, LiCl, would dissolve in the polar solvent, CH3COCH3.
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51 views
Divers who go to great depths in the ocean experience large differences in pressure between the surface and their final
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68 views
Divers who go to great depths in the ocean experience large differences in pressure between the surface and their final
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50 views
When running for a national office, what do candidates have to do within 15 days of raising $5,000 in campaign funds?(1 point)
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53 views
Dante is making a necklace with 18 rows of tiny beads in which the number of beads per row is given by the series 3 + 10 + 17 +
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71 views
Robin bought a computer for $1,250. It will depreciate, or decrease in value, by 10% each year that she owns it.
a) Is the
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73 views
Robin bought a computer for $1,250. It will depreciate, or decrease in value, by 10% each year that she owns it.
a) Is the
1 answer
79 views
The numbers of seats in the first 12 rows of a high-school auditorium form an arithmetic sequence. The first row has 9 seats.
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53 views
Robin bought a computer for $1,250. It will depreciate, or decrease in value, by 10% each year that she owns it. Is the sequence
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57 views
Nora created a tiled mosaic for display in her local art museum. The numbers of tiles in
the rows of the mosaic form an
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73 views
Determine the sum of the following arithmetic series.
^22E_ k=1(-5k+12)
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46 views
What is the 10th term of the following sequence?
16, -8, 4, -2, …
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37 views
Show your work. Determine the value of the first term and write a recursive definition for the following
sequence. (12, 7, 2,
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53 views
Show york work. Determine the value of the first term and write a recursive definition for the following sequence:
12, 7, 2,
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49 views
Determine the value of the first term and write a recursive definition for the following sequence:
12, 7, 2, -3,-8,
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57 views
Determine the first five terms of the sequence defined by the following explicit formula:
a_n= -4n-5
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61 views
Determine the first five terms of the sequence defined by the following explicit formula:
a^_n= -4n-5
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50 views
Determine the first five terms of the sequence defined by the following explicit formula:
a_n= -4n-5
1 answer
51 views
Liquid water can be separated into hydrogen gas and oxygen gas through electrolysis. 1 mole of hydrogen gas and 0.5 moles of
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66 views
Ammonia gas has a molar mass of approximately 17 grams per mole. At 290K and 1.2 atm, a sample of ammonia has a volume of 3.7 L.
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80 views
Ammonia gas has a molar mass of approximately 17 grams per mole. At 290K and 1.2 atm, a sample of ammonia has a volume of 3.7 L.
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81 views
in 2 to 5 sentences describe a scenario using the combined gas law in which changes occur in the pressure and temperature of an
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Describe a scenario using the combined gas law in which changes occur in the pressure and temperature of an enclosed gas but the
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60 views
Assess the meaning of the Sixth Amendment.(1 point) Responses
The Sixth Amendment protects against self-incrimination. The Sixth
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99 views
The molar mass of NaCl is 58.44 g/mol. How many molecules of NaCl are there in 10 g of NaCl? (use avogadro's number)
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2 AgI + Na_2S → Ag_2S + 2 NaI
Refer to the above chemical reaction, how many moles of NaI form from every 1 mol of Na_2S?
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54 views
A student starts a reaction with two solids and measures the mass to be 100 grams. The reaction ends with one solid and a gas as
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A chemist will use a sample of 30 g of ethanol (CH3CH2OH) in an experiment. In one to two sentences, make and justify a claim
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The molar mass of ammonium acetate is 77.083 g/mol. A student uses 0.100 mol of ammonium acetate in a chemical reaction. The
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68 views
The molar mass of ammonium acetate is 77.083 g/mol. A student uses 0.100 mol of ammonium acetate in a chemical reaction. The
1 answer
61 views
The molar mass of ammonium acetate is 77.083 g/mol. A student uses 0.100 mol of ammonium acetate in a chemical reaction. The
1 answer
55 views
Can the law of conservation of mass be applied when cooking? In one to two sentences, explain why or why not.
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72 views
5. y= x + 1/x^2 - 6x - 7
A. Vertical Asymptote: x = 7; Hole: x = 0 B. Vertical Asymptote: x = 7; Hole: x = -1 C. Vertical
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38 views
What is the answer
3. x^2- 49/x - 2 • x^2 - 5x + 6/x^2+ 4x-21 A. x-7x-2; x≠2, x≠-7 B. x+7; x≠2, x≠-3, x≠7 C.
1 answer
32 views
What is the answer
3. x^2- 49/x - 2 • x^2 - 5x + 6/x^2+ 4x-21
1 answer
30 views
Show your work
1. m^2 + m -12/m^2-16 2. Suppose p and q vary inversely and p=14 when q=4. Find p when q=8. 3. x^2- 49/x - 2 •
1 answer
62 views
1. m^2 + m -12/m^2-16
2. Suppose p and q vary inversely and p=14 when q=4. Find p when q=8. 3. x^2- 49/x - 2 • x^2 - 5x +
1 answer
62 views
is McCulloch v. Maryland cooperative or dual federalism?
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50 views
Research for a case that considered whether a state law was constitutional.What was the court case? what was the public policy
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67 views
Search online to find a recent (within the past 5 years) law passed by the Florida Legislature dealing with civil rights. What
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61 views
Research a Supreme Court case between two states that involved original jurisdiction. What issues were at stake? What states
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59 views
If you were to do an Internet search of the word Frankenstein, you would get over 13 million results, most of which do not refer
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102 views
A symbol in literature is a word, image, object, event, or person that has greater meaning than its literal definition. Authors
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72 views
