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Kristen

Questions (296)

What do the following lines from the Gettysburg Address mean?34. It is for us the living, rather, to be dedicated here to the
1. 1 answer
2. 145 views
The lead casket contains3000 gold ducats Portia's portrait nothing a jeweled dagger
1. 7 answers
2. 118 views
Annie Sullivan was from Australia.true false
1. 1 answer
2. 119 views
What is the balanced net ionic equation of mixed AgNO3 and MgBr2 solutions?-Ag3+(aq) + 3Br–(aq) → AgBr3(s) -Mg2+(aq) +
1. 1 answer
2. 144 views
In which of the following equilibrium systems will an decrease in the volume have no effect on the concentrations of products
1. 1 answer
2. 113 views
If the system 2CO(g) + O2(g) ⇌ 2CO2(g) has come to equilibrium, what happens when more C(g) is added?[CO2] increases and [O2]
1. 1 answer
2. 190 views
What is the balanced net ionic equation of mixed Co(NO3)2 and Na3PO4 solutions?Co+(aq) + NO3–(aq) → CoNO3(s) Co2+(aq) +
1. 1 answer
2. 247 views
According to Le Chatelier’s principle, which direction will the equilibrium shift if the concentration of the I2 is increased
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2. 144 views
Raising the temperature of reactants in a system will result in which of the following?will disturb the system so that the
1. 1 answer
2. 131 views
Which of the following factors are likely to affect the rate of a chemical reaction?1. The presence of a catalyst 2. The
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2. 131 views
Is the following reaction endothermic or exothermic?2 H2 + O2 --> 2 H2O H= -571.6 kJ endothermic exothermic
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2. 121 views
According to the solubility rules, Al2(SO4)3 is soluble in water. When it dissolves, what is the charge on the aluminum ion?+2
1. 1 answer
2. 107 views
What is the balanced net ionic equation of mixed K3CO3 and NH4OH solutions?K+(aq) + OH–(aq) → KOH(s) 2NH4+(aq) + CO32–(aq)
1. 1 answer
2. 186 views
In the equation shown, what represents the concentrations of the products?K = WX divided by YZ [Y] and [Z] WX divided by YZ [W]
1. 1 answer
2. 109 views
As the concentration of a reactant increases, how does the rate of a chemical reaction change?it will increase there is no way
1. 1 answer
2. 148 views
How do enzymes in the body affect chemical reactions?providing an alternate pathway with a lower activation energy increasing
1. 1 answer
2. 136 views
Which attempts to explain chemical reactions and physical interactions of molecules?thermochemistry collision theory chemical
1. 1 answer
2. 166 views
What is the minimum energy required for an effective collision called?Activation energy Energy of enthalpy Free energy Kinetic
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2. 129 views
What is the minimum energy required for an effective collision called?Activation energy Energy of enthalpy Free energy Kinetic
1. 1 answer
2. 166 views
For the reaction of gaseous nitrogen with gaseous hydrogen to produce gaseous ammonia, the correct equilibrium constant
1. 1 answer
2. 171 views
.Which of the following are included in the equilibrium constant expression? aqueous and liquid solid and gas gas and aqueous
1. 1 answer
2. 147 views
.Is the following phase change endothermic or exothermic? melting ice exothermic endothermic
1. 1 answer
2. 181 views
In an endothermic reaction, the total energy at the beginning of the reaction isgreater than the total energy at the end of the
1. 1 answer
2. 106 views
At equilibrium, how does the concentration of reactants compare to the concentration of products?The concentrations are
1. 1 answer
2. 145 views
Write an equilibrium constant expression for each of the following chemical equations. Remember that only (aq) and (g) are kept
1. 1 answer
2. 232 views
2Ce(IO3)4(aq) + 24H2C2O4(aq)→Ce2(C2O4)3(aq) + 4I2(aq) + 42CO2(g) + 24H2O(l)What would it look like if Decrease the
1. 1 answer
2. 147 views
2Ce(IO3)4(aq) + 24H2C2O4(aq)→Ce2(C2O4)3(aq) + 4I2(aq) + 42CO2(g) + 24H2O(l)What would it look like if Decrease the temperature
1. 1 answer
2. 128 views
2Ce(IO3)4(aq) + 24H2C2O4(aq)→Ce2(C2O4)3(aq) + 4I2(aq) + 42CO2(g) + 24H2O(l)What would it look like if Decrease the volume.
1. 1 answer
2. 131 views
2Ce(IO3)4(aq) + 24H2C2O4(aq)→Ce2(C2O4)3(aq) + 4I2(aq) + 42CO2(g) + 24H2O(l)What would it look like if Increase the
1. 1 answer
2. 138 views
2Ce(IO3)4(aq) + 24H2C2O4(aq)→Ce2(C2O4)3(aq) + 4I2(aq) + 42CO2(g) + 24H2O(l)What would it look like if Argon gas is added.
1. 1 answer
2. 120 views
2Ce(IO3)4(aq) + 24H2C2O4(aq)→Ce2(C2O4)3(aq) + 4I2(aq) + 42CO2(g) + 24H2O(l)What would it look like if Increase the
1. 1 answer
2. 128 views
2Ce(IO3)4(aq) + 24H2C2O4(aq)→Ce2(C2O4)3(aq) + 4I2(aq) + 42CO2(g) + 24H2O(l)What would it look like if Increase the
1. 1 answer
2. 130 views
aq) + 42CO2(g) + 24H2O(l)1. Increase the concentration of carbon dioxide. 2. Argon gas is added. 3. Increase the concentration
1. 1 answer
2. 157 views
A recipe uses 5 cups of flour to 1 1/10 cups of milk if you have 2 cups of flour how much milk should you use the amount of milk
1. 1 answer
2. 1,064 views
Are the bases of the prism equilateral triangles? Why or why not? Note: The bases of a triangular prism are triangles.
1. 1 answer
2. 487 views
I need help to solve system by substitution.6x+3y=0 X+5y=9
1. 1 answer
2. 443 views
The loudness L of sound in decibels is given by L= 10log (l/lo) where l is the intensity of sound and lo is the intensity of the
1. 1 answer
2. 1,691 views
What are some real-life applications of prisms and surface area?
1. 0 answers
2. 2,387 views
In order for hurricane or tropical storm to develop the temperature of the ocean must beA) 20 degrees F B) 40 degrees F C) 60
1. 3 answers
2. 2,723 views
PLEASE CHECK MY ANSWERS!! I AM SOO FAR BEHIND IN THIS CLASS!1. Which of the following describes the effect of high altitude on
1. 5 answers
2. 3,543 views
A student drops a stone from the edge of a sea cliff. The sound of the stone striking the ocean is heard 3.8s after the stone is
1. 1 answer
2. 663 views
Construct a data set of 8 items that has a mean absolute deviation of 0.5 and for which average 8
1. 2 answers
2. 1,130 views
I need help answering this inferring question because I don't fully understand it.Q: Infer whether the size of an object's
1. 1 answer
2. 555 views
How can I use bar diagrams to divide unit fractions by whole numbers?
1. 4 answers
2. 1,361 views
The half-life of krypton-91 (91Kr) is 10 s. At timet = 0 a heavy canister contains 5 g of this radioactive gas. (a) Find a
1. 1 answer
2. 1,198 views
Find the constant as such that the function:f(x)= {x^2-a^2 x does not equal a {8, x equals a
1. 1 answer
2. 414 views
A box can hold 175 cubic inches of cereal. Of the box is 7 inches long and 2.5 inches wide, how talk is it ?
1. 3 answers
2. 1,425 views
"Rocket Man" has a propulsion unit strapped to his back. He starts from rest on the ground, fires the unit, and accelerates
1. 2 answers
2. 1,615 views
You buy 10 gallons of ice cream for a party, how many cup sized containers can you fill with this?
1. 4 answers
2. 2,761 views
NASA launches a satellite into orbit at a height above the surface of the Earth equal to the Earth's mean radius. The mass of
1. 1 answer
2. 1,613 views
What is the final grade for this student? (round to two decimal places)Quizzes = 5%, Exam 1 = 20%, Exam 2 = 20%, Lab Reports =
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2. 874 views
Julie the Jeweler has fifteen gold necklaces worth $120 each, nine silver necklaces valued at $90 each, ten plated necklaces
1. 2 answers
2. 992 views
An “A” is considered 4.0, a “B” is 3.0, a “C” is 2.0, a “D” is 1.0, and an “F” is 0. In your first semester
1. 1 answer
2. 1,367 views
On a quiz worth 5 points, four students earned a 5, seven students earned a 4, six students earned a 3, two students earned a 2,
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2. 2,165 views
A worker is exposed to 98 dB for five hours and 82 dB for a three hours, giving an eight hour working day. On average what noise
1. 1 answer
2. 2,536 views
I need some help with medical terms. I need to determine the word parts and the definition and I'm having a hard time with these
1. 1 answer
2. 1,121 views
An airplane is flying at an airspeed of 500 km/hr in a wind blowing at 50 km/hr toward the southeast. In what direction should
1. 1 answer
2. 1,903 views
I don't know how to do Titration problems! I have an emergency homework assignment that's crucial to my grade! Please help with
1. 3 answers
2. 2,069 views
Post a New QuestionCurrent QuestionsHomework Help: Algebra Posted by Kristen on Tuesday, May 5, 2015 at 7:53pm. A bank teller
1. 2 answers
2. 712 views
A bank teller counts her $10 and $5 bills at the end of the day. The total value of the money is $595. Let f represent the
1. 2 answers
2. 704 views
An object is projected from the surface of the earth with a speed of 2.73x10^4 m/s. What is its speed when it is very far from
1. 0 answers
2. 662 views
How many liters of oxygen a@STP will produce 195 grams of diphosphorus pentoxide when reacted with sufficient phosphorus?- exact
1. 1 answer
2. 781 views
The following rational function describes concentration in blood of a certain medicine taken once depending on time, finda. the
1. 0 answers
2. 574 views
1: The table shows the low outside temperatures for Monday, Tuesday, and Wednesday. By how many degrees did the low temperature
1. 1 answer
2. 729 views
Your school is planning to put an aquarium with 30 fish in it in the main lobby. To accommodate this number of fish, the
1. 0 answers
2. 636 views
Which one of these statements is true about a "bumper-to-bumper" warranty.A. Normal wear and tear is NOT covered by the
1. 4 answers
2. 652 views
Find the duration of a 6% coupon bond making annual coupon payments if it has three years until maturity and a yield to maturity
1. 0 answers
2. 1,147 views
A bond currently sells for $1,120, which gives it a yield to maturity of 5%. Suppose that if the yield increases by 25 basis
1. 1 answer
2. 1,014 views
Fiona and camila took a load of peaches to the farmers market. During the first hour , they sold 1/2 of the peaches plus 1/2 of
1. 3 answers
2. 618 views
How many grams of a 17.7% potassium sulfate solution would contain 419.9 g potassium sulfate? Answer in units of g
1. 0 answers
2. 716 views
Write the equation for the dissolution ofNH4NO3 in water. If 5.95 mol of NH4NO3 are dissolved, how many total moles of ions are
1. 1 answer
2. 1,081 views
Sixty people, half of whom were females, were asked if they liked yogurt. Thirty-two of the people, including two-fifths of all
1. 1 answer
2. 1,009 views
A clock has a minute hand10 inches long. What is the distance traveled by the tip of the minute hand in 1 day?
1. 2 answers
2. 607 views
At one point on a mountain road, the elevation is 1250 meters. Three kilometers up the road, the elevation is 1610 meters. What
1. 1 answer
2. 585 views
I am thinking of a number. If I add a half, fourth, and a ninth of it together, I get a total of 62. What's my number?
1. 2 answers
2. 436 views
What is the weight of the snow I have to shovel off our sidewalk after a 6 inch snowfall ? Our sidewalk is 150 feet long and 3
1. 1 answer
2. 471 views
The sum of two fractions is 1 1/2.Their difference is 5/12. What are the fractions?
1. 4 answers
2. 1,694 views
The half-life for the first-order conversion of A to B is 56.5 hours. How long does it take for the concentration of A to
1. 1 answer
2. 1,854 views
Alex makes a 14 inch diameter pizza, which includes a 1 inch crust. Donald wants to make a 10 inch diameter pizza with the same
1. 1 answer
2. 796 views
How many distinct isosceles triangles exist with a perimeter of 99 inches and side lengths that are positive while numbers?
1. 1 answer
2. 726 views
Fred is closing a bank account t and wants to distribute the money among his grandchildren by giving each of them $20. To do
1. 1 answer
2. 783 views
A box contains 20 red balls and 40 green balls . Four balls are randomly selected from the box without replacement. What is the
1. 1 answer
2. 1,233 views
Loretta's age now is twice John's age five years ago. In three years the sum of John's and Loretta's ages will be 50. How old
1. 1 answer
2. 643 views
What is the smallest counting number n so that 375n is a perfect square?
1. 1 answer
2. 560 views
Coins numbered 1-200 are placed in a hat. What is the probability that a coin chosen at random out of the hat is a multiple of 6
1. 1 answer
2. 794 views
What is the sum of the prime factors of 1260? For example, the sum of the prime factors of 20 is 9.
1. 1 answer
2. 498 views
How many terms are in the following sequence that follows? 3,7,11,....,439
1. 2 answers
2. 676 views
A car rental agency charges $37.50 per day and $0.23 per mile or fraction thereof to rent a car. How many miles can be driven in
1. 1 answer
2. 666 views
A high rise apartment building has four elevators. Each elevator travels upward at an average rate of 18 feet per second. The
1. 1 answer
2. 701 views
Which set of factors of the number 420 has the least possible sum? Which set of factors of the. Number 420 has the greatest
1. 1 answer
2. 597 views
Nine consecutive odd whole numbers sum to 243. Find the sum if the first and last whole numbers in this nine-addend ser.
1. 1 answer
2. 1,178 views
How many numbers between 9 and 100 exist such that the product of the digits is treaters than the actual number?
1. 1 answer
2. 481 views
Find the whole number that meets all the following conditions1. It is greater than 100 2. It is less than 200 3. It is 20
1. 1 answer
2. 525 views
Find the greatest ten digit positive multiple of 12 using each digit once and only once.
1. 1 answer
2. 474 views
Find the next three values in the following sequence of numbers.-1,0,1,0,1,2,3,6,11,20,37
1. 2 answers
2. 584 views
Find the greatest ten digit positive multiple of 12 using each digit once and only once .
1. 0 answers
2. 440 views
Find six consecutive multiples of 6 whose sum is the least common multiple of 13 and 18.
1. 1 answer
2. 931 views
If f(x) = x^4 -5x^2 +4, for what values of x is the absolute value of f(x) not differentiable?
1. 1 answer
2. 495 views
The ratio of cats to dogs is 2:1 and the ratio of dogs to parrots is 15:2. In addition, the ratio of parrots to snakes is 3:1
1. 1 answer
2. 404 views
Four hoses are filling a pool. The first hose alone would fill the pool in 4 hours while the second hose takes 6 hours. The
1. 6 answers
2. 2,742 views

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