07/19/22

Need some help with stoichiometry questions
Ammonium perchlorate (NH4CLO4) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts with itself to produce nitrogen gas (N2), chlorine gas (Cl2), oxygen gas (O2), H2O, and a great... more
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07/17/22

Solve the quadratic equation; 12y^2 + 29y + 15 = 0
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07/17/22

How long (in seconds) would it take for the concentration of A to decrease from 0.790 M to 0.270 M?
Ch17Q15The rate constant for this zero‑order reaction is 0.0340 M·s−10.0340 M·s−1 at 300 ∘C.300⁢ ∘C.A⟶productsA⟶productsHow long (in seconds) would it take for the concentration of AA to decrease... more
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07/17/22

What is the relative rate of change of each species in the reaction?
ch 17 q 1The rate of the given reaction is 0.540 M/s.0.540 M/s.A+4B⟶2CA+4B⟶2CWhat is the relative rate of change of each species in the reaction?Δ[A]Δ𝑡= ____M/sM/sΔ[B]Δ𝑡=... more
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07/16/22

How do I solve this?
A 0.503 g0.503 g sample of steam at 107.1 ∘C107.1⁢ ∘C is condensed into a container with 5.92 g5.92 g of water at 14.5 ∘C.14.5⁢ ∘C. What is the final temperature of the water mixture if no heat is... more
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07/16/22

I am not understanding this question, is it ok if I ask for help on this one
Calculate the volume of 0.500 M HCOOH and 0.500 M HCOONa required to prepare 0.100 L of pH 5.00 buffer with a buffer strength of 0.100 M. The p𝐾a of HCOOH is 3.75.volume of HCOOH =L?volume... more
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07/13/22

what would be the charge on the vertices of a square with given features ;
If the four vertices of the square ABCD are placed with an equal amount of charge, and thepotential of the intersection of the two diagonal lines of the square is 0, there must be four verticesof... more
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07/11/22

pre calc question
an island is 4 miles from the nearest Point p on a straight Shoreline. A town is 12 miles down the shore from p.If a person can row a boat at an average speed of 2 mi per hour and same person can... more
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07/09/22

Chemistry 102: Equilibrium: Find Equilibrium constant based off images/time.
The progress with time of a reaction system is depicted in the figure here. Red spheres represent the molar concentration of substance A, and blue spheres represent the molar concentration of... more
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07/08/22

MATH HELP NEEDED !
Seth invests $4800 in two different accounts. The first account paid 2 %, the second account paid 5 % in interest. At the end of the first year he had earned $207 in interest. How much was in each... more
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07/08/22

HW HELP NEEDED !
If 101 people attend a concert and tickets for adults cost $2 while tickets for children cost $1.5 and total receipts for the concert was $167, how many of each went to the concert? adults children
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07/08/22

need help with hw
The population of a town has been growing, following the equation P=800t+6000P=800t+6000, where t is years after 2010. The number of restaurants in the town has been growing according to the... more
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07/07/22

N 9-1,10, P (2,1), Q (-2,2), R ( -1,-2). Find the area of the polygon with the given vertices
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07/07/22

Balance the equation Mg+O2-> MgO
Balancing equations
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07/07/22

Maximum and Minimum Problem
A firm manufactures a commodity at two different factories, Factory X and Factory Y. The total cost (in dollars) of manufacturing depends on the quantities, xx and yy produced at each factory,... more
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07/07/22

Partial Pressure

An empty steel vessel is charged with 0.200 atm of C and 0.200 atm of A. Once the system reaches equilibrium according to the reaction below, what is the equilibrium partial pressure of C? Kp for... more
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07/07/22

algebra questions
What is the horizontal asymptote of the rational function f(x) = 3x / (2x - 1)
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07/07/22

algebra questions
What are the zeros of the parabola: f(x) = x2 - 7x + 10 (that is, what are the x-intercepts or the points where the graph crosses the x-axis)
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07/07/22

equation slope intercept
Write the equation of the line that passes through the points (1, 1) and (2, 4). Write your answer in slope-intercept form.
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07/06/22

use power reducing formulas to reduce tan^2(4x)cos^4(4x)
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07/06/22

what is the equation of the line containing the points (5,2) (10,4) (15,6)
coordinate geometry
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07/06/22

Suppose that integral from-3 to 4.5 of f(x) dx=3, integral from-3 to-0.5 of f(x) dx=3, and integral from 2 to 4.5 of f(x) dx=3
Evaluate the following definite integrals:(a) integral from-0.5 to 2 of f(x) dx= -3(b) integral from 2 to-0.5 of 3 f(x)-3 dx= ?
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07/06/22

Finding Reactant Quotients
A 5.0-L flask containing 17 g of NH3, 14 g of N2, and 12 g of H2: N2(g)+3H2(g)⇌2NH3(g)Kc=0.060N2(g)+3H2(g)⇌2NH3(g)Kc=0.060 A 2.00-L flask containing 230 g of... more
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07/06/22

Trig identities
(2sin^2(x))/1-cosx=2sinx+sin2x
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07/06/22

. Calculate the pH and pOH for each of the following solutions:
1.8 * 10-4 M NaOH
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