05/19/20

Please help! I cannot figure out the steps of going from mass of Hydrogen to moles of carbon in ethanol.
A sample of ethanol (C2H6O) contains 3.024g of hydrogen. How many moles of carbon are in the sample ? Molar Mass of ethanol (C2H6O)=46.07g/mol
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05/14/20

Question from Sets Theory
A school has 63 students studying Physics, Chemistry and Biology. 33 study Physics, 25Chemistry and 26 Biology. 10 study Physics and Chemistry, 9 study Biology andChemistry while 8 study both... more
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05/06/20

If f(x) = -2x^2 + x - 5, what is f(3)?
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05/05/20

A line passes through the point (–1,–2) and is perpendicular to the line with the equation y = –x – 1. What's the equation of the line?
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05/04/20

if I Put A Cake In The Oven At 3:20 And Take It Out In 35 minutes What Time Did I Put It In
if I Put A Cake In The Oven At 3:20 And Take It Out In 35 minutes What Time Did I Put It In?
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05/04/20

Question in the description

I know all of the steps for this math question that I’m working on except one. One of the steps is making an x and y table. Make an x-y table for the equation y=1/3x^2Help Please!!!
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05/01/20

Does sucrose solution conduct electricity? Explain.

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05/01/20

HELP ASAP PLEASE!!!!
18.Calculate the pH of a buffer solution that is 0.195 M in CH3CO2H and       0.125 M  NaCH3CO2 ?
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05/01/20

What is the volume of a 0.120 M solutions that contains 9.35 g of HCl? (don't forget to convert grams to moles)
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05/01/20

How many grams of CaBr2 would be needed to create 450.0 mL of a 2.00 M solution?
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05/01/20

What is the concentration (M) of a solution in which 75 g of C12H22O11 are dissolved in 600.0 mL of water?
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05/01/20

Hot air balloon
hot air balloon is filled with 1.19 × 10 to the 6th of an ideal gas on a cool morning (11 °C). The air is heated to 129 °C. What is the volume of the air
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04/30/20

What are the zeros of the following quadratic equation and how do you know? x^2+x-6=0
Answer Options;A. The zeros are (-2,3). I know these are my zeros because they are the x-intercepts.B. The zeros are (-2,3). I know these are my zeros because I typed the quadratic into poly... more
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04/30/20

Scalp has only ONE muscle which is the
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04/29/20

How many grams of fuel?

A backpacker wants to carry enough fuel to heat 2.50 kg of water from 25.0 °C to 100.0 °C. If the fuel he carries produces 36 kJ of heat per gram when it burns, how much fuel should he carry? (For... more
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04/29/20

Homologous and Analogous
Which ones are homologous and which ones are analogous? Please help.human hand/bat wingbat wing/bird wingshark fin/dolphin finhuman hand/dog paw
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04/29/20

The statement is false and replace one word to make it true
The limiting reagent is used to calculate the actual yield.
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04/29/20

which of the following is an isomer of ch3-ch2-cooh?
CH3 - C - OH - CH3 CH3 - CO - O - CH3 CH3 - CO - CO - CH3 CH3 - CH2 - CO2 - CH3
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04/29/20

A water heater warms 2.4 kg of water from a temperature of 7.0°C to 68.4°C. Determine the amount of energy required for this increase in temperature. Water has a specific heat of 4.18 J/g*°C.
Determine the amount of energy required for the increase in temperature
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04/28/20

Is this exothermic or endothermic and why?
FeCl3 (aq) + KSCN (aq) > Fe(SCN)3 + 3KCl (aq)
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04/28/20

which of the following is an isomer of ch3-ch2-cooh?
CH3 - C - OH - CH3 CH3 - CO - O - CH3 CH3 - CO - CO - CH3 CH3 - CH2 - CO2 - CH3
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04/24/20

What is the equation to find how many adult tickets were sold if twice as many child tickets were sold and a total of 480 tickets were sold?

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04/24/20

Grams of Calcium Fluoride
Calcium fluoride (CaF2) is often used as the source of fluoride ions (F–) in drinking water to prevent tooth decay. The question is: How many grams of calcium fluoride must be added to a 6.00x108... more
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04/23/20

Classify the phase‑change scenarios according to the direction of the heat flow in each case.
Heat is transferred from the water to the surroundings Heat is transferred to the water from the surroundings No net transfer of heat occurs a cloud of steam condenses into liquid water a block... more
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04/23/20

How long does it take to answer an organic chem question?
Is this free. We send organic Chemistry question and you reply how soon? Thank you
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