02/02/24

How many MOLECULES of carbon dioxide are present in 2.71 moles of this compound ?
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10/20/23

(2,-5) and m = -2
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09/23/23

Is or Are? Which is correct?

None of the goods (is, are) missing.
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08/27/23

One number is 3 more than twice the other number. If the sum of the two numbers is 27, find the two numbers
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05/16/23

Are you legitimate?
On the better business bureau there are reports that make this seem illegitimate. I need to talk to someone and have more information before inputting any financial information. I am hesitant to... more
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01/16/23

It si about chemistry practical
What volumen of 0.0200 moldm3 kmno4 solution is required to oxidixed 40.0cm3 of 0.100moldm3 feso4 un sulfuric acid solution.
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01/13/23

The perimeter of the rectangular playing field is 404 yards no. The length of the field is 3 yards less than quadruple the width. what are the demonsions of the playing field?
this is as far as i got.2x+2y=404y=4x-32x+2(4x-3)=40410x=404what do i do from there?
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01/13/23

Slope-intercept form equation

A line passes through the point (-9, 8) and has a slope of 2/3 write an equation in slope-intercept form for this line
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12/06/22

A major component of gasoline is octane.
A major component of gasoline is octane C8H18. When octane is burned in air, it chemically reacts with oxygen gas O2 to produce carbon dioxide CO2 and water H2O. What mass of water is produced by... more
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12/05/22

percent yield of 5.89 g
when heated, lithium reacts with nitrogen to form lithium nitride. what is the theoretical yield of lithium nitride in grams if 12.3 g of lithium are heated with 336 g of nitrogen gas. if the... more
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12/03/22

Can you please help me setup this question
A shot of espresso has an average temperature after extraction of 82.2 °C. How many grams of ice at -18 °C are needed to cool the espresso to 0 °C. You can assume that the espresso will have a... more
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12/01/22

Find the equation for (191,149) and (231,180)

This is for a major project I have any help would be amazing I’m so confused rn
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10/30/22

FeCl3 + 3NH4OH → Fe(OH)3 + 3NH4Cl
If 6.4 moles of ammonium chloride are produced, how many moles of iron(III) chloride reacted? Remember to write your answer with the correct number of significant digits. No units are necessary for... more
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10/28/22

If 39.5 mol of an ideal gas is at 4.05 atm at 47.20 ∘C, what is the volume of the gas?
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08/22/22

Algebra :If a: b = 7 : 9 and b : c = 5 : 7, then what is a : c

If a: b = 7 : 9 and b : c = 5 : 7, then what is a : c (a) 5 : 9 (b) 3 : 5(c) 7 : 21 (d) 7 : 15
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08/20/22

I want detail answer

You are choosing between two different cell phone plans. The first plan charges a rate of 20 cents per minute. The second plan charges a monthly fee of $34.95 plus 10 cents per minute. How many... more
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07/22/22

Modeling with linear equations -Stuck whether this is starting correctly and where to go.
Number of rabbits in an area depends on the number of wolves as follows:Wolves Rabbits40 8000 44 700048 6000A) find a linear equation showing how the number of rabbits depends on the... more
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07/22/22

Solve for x , where M is molar and s is seconds. x=(8.5×10^3M^−2s^−1)(0.22M)^3

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07/20/22

What is the fraction
 Koos spent 3/7 of his monthly pocket money during the first week. the following week he spends two-thirds of what he spent the previous week. The fraction of the pocket money that is still left
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04/18/22

Summarize what concentration means using the terms solute, solvent and number of particles. The amount of solute and number of particles that are dissolved in a solution.

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04/18/22

Italicize the thesis statement, underline the topic sentences for each supporting paragraph, and highlight the logical reasoning/ evidence.

Italicize the thesis statement, underline the topic sentences for each supporting paragraph, and highlight the logical reasoning/ evidence. The K-12 Program has been brought to attention since its... more
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03/11/22

How many moles of each product?
For the reaction shown, calculate how many moles of each product form when the given amount of each reactant completely reacts. Assume that there is more than enough of the other... more
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02/27/22

Given 2H2+ Oz--> 2H20 what mass of hydrogen is needed to create 125 g of water?
i just need a more ‘in depth’ explanation that would be wonderful
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02/27/22

How many moles of O 2 are required to burn completely 63.5 g of C 6H 6, according to the following equation?

How many moles of O 2 are required to burn completely 63.5 g of C 6H 6, according to the following equation? 2C 6H 6 + 15O 2 ® 12CO 2 + 6H 2O
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02/27/22

Calculate the mass of CaCO 3 present in the original sample.
A mixture of calcium oxide, CaO, and calcium carbonate, CaCO 3, that had a mass of 3.454 g was heated until all the calcium carbonate was decomposed according to the following equation. After... more
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