Monday
December 5, 2016

# Posts by Chelsy

Total # Posts: 14

math
two airplane fly toward each other from points 900 miles apart, at the rate, per hour, of 300 miles and 250 miles. when will they meet if they start at the same instant?
September 22, 2016

math algebra
two airplane fly toward each other from points 900 miles apart, at the rate, per hour, of 300 miles and 250 miles. when will they meet if they start at the same instant?
September 22, 2016

math algebra
at how many minutes after 3pm will the minute hand of a clock overtake the hour hand?
September 22, 2016

math algebra
a motorboat, which can travel at 20 miles per hour in still water, takes 3/5 as long to travel downstream on a river from a to b, as to return. Find the rate of the rivers current.
September 22, 2016

health
yeah i agree with this thank you so much.
December 5, 2015

chemistry
The density of water at 30.0 °C is 0.9956 g/mL. If the specific gravity of acetic acid is 0.1040 at 30.0 °C, what is the density of acetic acid at 30.0 °C?
February 1, 2013

calculus
A multistoried building has a floor area of 2,000 square feet on the ground floor, 1,995 square feet on the 1st floor, 1,990 square feet on the 2nd floor, and so on. If the areas of the higher floors follow this sequence, what is the expression to calculate the area of the nth...
November 27, 2012

CALCULUS
The masses of 10 books are found to be in an arithmetic sequence. If their total mass is 13 kg and the lightest book has a mass of 400 grams, what is the mass of the heaviest book? 2,000 grams 2,100 grams 2,200 grams 2,300 grams 2,700 grams
November 27, 2012

chemistry
suppose you made a buffer solution that was 0.050M in both HC2H3O2 and NaC2H3O2.Would the pH changes resulting from the addition of 0.1 M HCL solution to this buffer solution be the same as those you observed in experiment?
November 21, 2011

chemistry
50 g of NaCL is dissolved into 800 ml H2O. i need to know if is molarity, g/equivalent, freezing point depression, boiling point elevation or osmolarity. nad how to resolve please give me a hand
November 21, 2011

chemistry
50 g of NaCL is dissolved into 800 ml H2O. i need to know if is molarity, g/equivalent, freezing point depression, boiling point elevation or osmolarity. nad how to resolve please give me a hand
November 21, 2011

chemistry
2 moles of aqueous Barium Nitrate is combined with 1 mole of aqueous Sodium Sulfate. Assuming 100% yield, what mass of Barium Sulfate precipitate would be produced. 1. 175.043 grams 2. 233.391 grams 3. 466.781 grams 4. 116.953 grams
October 21, 2011

chemistry
Assume that you were given samples of two white, crystalline compounds, one of them ionic and one covalent. Describe how you might tell which is which. I just can't seem to figure out, can you please help. Thanks.
October 21, 2011

chemistry
When 9.8g of aluminum oxide(Al2O3) decomposes, how many frams of aluminum metal are produced?
March 4, 2009

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