Tuesday
July 29, 2014

Posts by melly


Total # Posts: 20

Chemistry
Heat 1kg of CaCO3, get 560g of CaO. Write the reactant equations and solve the mass of CO2 that born. The CaO is 100% pure. Anyone help me, pls?

science
I'm going out on a limb here, and I know you might not reply, but, DrBob222, I need to ask you something concerning this. Why did you flip the ratio? Wouldn't that effect the answer? And is that a mistake in the middle where you said, "Then I would adjust the rati...

biology
1 mole of an element or compound contains 6.20 times 10 to the 23rd power atoms or molecules of the element or compound. 1 mole of an element or compound has a mass equal to its mass number (or molecular weight) in grams. For example, 1 mol of hydrogen gas (H2) contain 6.02 ti...

math- check my answer
An internet investment company advertises that if you invest your money with them at 14%, compounded annually, they guarantee yo double your money sooner than you can imagine. Ignoring taxes, how long would it take to double your money at a simple rate of 14% compounded annual...

business math- check my answers please
A share of perpetual preferred stock pays an annual dividend of $6 per share. If the investors require a 12% rate of return, what should be the price of this preferred stock? a. $57.25, b. $50.00, c. $62.38, $46.75, e. $41.64. I chose b. $50 because $50 x 12% = $6...is this co...

business finance
If the break-even point is $360K, and if I subtract that from $640K, that leaves $280K. Then multiply $280,000 x 30% = $84,000...so the answer is $640k. Am I right?

math
8 faces

5th grade social studies
which part of goverment pased laws

english
Can u give me an example of each please

english
Someone please help me i really need it!? someone please help me....this is 50 points.....i have done it three times already and my teacher keeps giving it back saying do it over...someone please help me. read the following excerpt, and anayzes the authors use of tone,dicition...

cjs250
Why is it important for a security professional to know the particular target environment to which they are assigned extremely well? How can experienced security professionals prepare themselves for challenges and opportunities that they have never encountered before? Do you t...

Precalculus
How would I find the limit of (if it exists): lim x-->infinity (4x -3)/(2x +1)

Precalculus
Would this be the answer for this problem 2x^3-x^2 > x x>1 or 0>x>-1/2

Precalculus
It might look better this way... lim x-->3 (x^3 -27)/(x^2 -9)

Precalculus
How would I find the limit of (if it exists): lim x-->3 (x^3-27) -------- (x^2-9)

Biology
Where within the cell are the DNA instructions located?

Math
40 for the first one 48 is the last one

science
its called lokking on the internet.....

sci275
can someone please help.

sci275
considering the amount of energy required to produce animal based foods and goods, should humans change their habits so they consume products closer to the bottom of the food chain because it is more efficient?

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