09/14/21

calculate how many grams of Cr (OH) 3 are formed when 19 kg of KOH reacts with CrCl3
calculate how many grams of Cr (OH) 3 are formed when 19 kg of KOH reacts with CrCl3
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09/13/21

A backyard has a perimeter of 158 yards. The length measures 6 yards longer than the width. Which simplified equation would be used to solve for the width? Let x x=width

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09/13/21

chemistry conversions and denisty
(a) Atoms are very small compared to objects on the macroscopic scale. The radius of a gold atom is 144 pm. What is this value in meters and in centimeters?  m   cm(b) The mass of a... more
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09/13/21

AMDM Question (Mathematics)
Your college professor tells you he will give a 30%-30%-40% split on grades between homework, quizzes, and test. However whichever category you have the highest average in will be the 40%... more
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09/12/21

Recall Planck's constant equals
Recall Planck's constant equals 6.63 × 10−34 J·s and the speed of light is 3.00 × 108 m/s. Calculate the wavelength (in nm) of a photon emitted by a hydrogen atom when its electron drops from... more
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09/12/21

evaluate the chemical formula
Fatty acids have a general formula of CxHyOz. A technician wants to determine the type of pure fatty acid isolated from a metabolite mixture. As 16.71g of the pure fatty acid is fully combusted... more
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09/11/21

A cell phone company charges
A cell phone company Ringer charges $7.46 per month plus $0.13 a call another cell phone company Busy charges $6.17 plus $0.17 per callFill in the table to estimate when Ringer charges less than Busy
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09/11/21

Baking powder must contain 1 mole of potassium bitartrate (KNaC4H4O6) for every mole of sodium bicarbonate (NaHCO3). If you have 1 mole of NaHCO3, calculate how many grams of KNaC4H4O6 you will need.
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09/11/21

I need help with my chem homework

Suppose a student places a beaker on his balance and does not tare it. Then, he adds three substances to the same beaker. The table shows the student's data before and after he adds... more
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09/11/21

Find an equation of the line, in slope intercept form that passes through the given point and has the specified slope.
point (-3,3) and slope (m)=0
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09/11/21

Pre-Calculus: Find all real solutions of the equations
Find all real solutions of the equations:1.) (x2+3)2–4(x2+3)–5=02.)|x/2x–3|≥1
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09/10/21

PE 62 Kinesiology
You must respond to at least two of your class peers about their post. Your response should be about three or four sentences. What do you think? (1) The video that I am reacting to is the Activity... more
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09/09/21

How do you form a compound given the atomic number?
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09/09/21

The difference between a two times number and 15 is 30

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09/09/21

Use elemination to solve the system of equations: x+6y=10 and x+5y=9
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09/08/21

What is the density of the metal sheet? In g/cm3
A sheet of metal has an area of 1.32 ft2 and a height of 0.083 cm. The sheet weighs 255.2 g.
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09/08/21

Use factor-label methods to convert metric units. Final answer must be in scientific notation form.
4. 10 hrs to sec5. A jeepney tried to overtake a car. The jeepney moves at 75km/hr while the carmoves 28,456 ft/hr. Convert the speed of the jeep to ft/hr to identify if the jeepney canovertake a car. more
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09/08/21

Convert 29.7 L/cm to units of milliliters per meter. Show the unit analysis by dragging the conversion factors into the unit‑factor slots.
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09/07/21

Bella pays 8 payments of $5 each to a game store. She returns one game and receives $27 back. What is the change to the amount of money she has?
Bella pays 8 payments of $5 each to a game store. She returns one game and receives $27 back. What is the change to the amount of money she has?
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09/07/21

What is an equation of the line that passes through the points (−5,8) and (5, 0)
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09/07/21

write an algebraic equation to represent the given the information of a rectangle. let W be the width and L be the length of the rectangle
the length is 5 cm longer than the width
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09/06/21

For the combustion of propane (C3H8), how many grams of oxygen are needed to fully react 45.0 grams of propane?
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09/05/21

A Se atom has a mass number of 76 . Determine the number of neutrons, protons, and electrons in this neutral isotope.
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09/03/21

CHEM Help- Express your answer in kilograms using two significant figures.
The density of air at ordinary atmospheric pressure and 25 ∘C is 1.19 g/L What is the mass of the air in a room that measures 14.5×19.5×7.0ft?    Express your answer in kilograms using two... more
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09/03/21

G is between F and H. If GH=6 and FG=8x+2, and FH=16, find FG
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