10/09/17

How many ounces of dried apricots must be added to 18 ounces of a snack mix that contains 20% dried apricots to make a mixture that is 25% dried apricots
a chart form
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10/09/17

Write ionic equations for the following reactions: calcium ions and carbonate ions form calcium carbonate
Write ionic equations for the following reactions: calcium ions and carbonate ions form calcium carbonate
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10/09/17

What volume of carbon dioxide, measured at room temperature and pressure, would be obtained by the reduction of 320g of iron(III)oxide?
What volume of carbon dioxide, measured at room temperature and pressure, would be obtained by the reduction of 320g of iron(III)oxide?
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10/09/17

An element cannot be divided into smaller parts or other substances.
 True or false
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10/09/17

finding the theortical mass
balanced equation is Na2CO3+2HCl = 2NaCl+CO2 +H2O   WHAT IS THE THEORETICAL MASS
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10/08/17

I need help with zwitterion form.
example would be Lysine.   I know the standard form just having trouble grasping the concept.   Thank you!
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10/08/17

Need to find How Much mL of the 85% solution is needed
You need a 30% alcohol solution. On hand, you have a 385 mL of a 20% alcohol mixture. You also have 85% alcohol mixture. How much of the 85% mixture will you need to add to obtain the desired... more
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10/08/17

Mole Fraction
A solution of Sodium Chloride in water has a vapor pressure of 26.8 torr at 30C. What is the mole fraction of NaCl in this solution? (Vapor Pressure of pure water is 31.824 torr at 30C)
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10/08/17

A chemical reaction happened between AgNO3 aqueous solution and hydrochloric acid, K2SO4.
Write (please indicate the physical form of the reactants and products). Please show how you got the answer please.
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10/08/17

How many liters of 0.10 M Mg(OH)2 (aq) are required to titrate 10.00 mL of 0.30 M HCl (aq)?
Please balance the reaction before you do the equation. Also, can you please show how you got the answer. 
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10/08/17

How many liters of 0.10 M NaOH (aq) are required to titrate 10.00 mL of 0.30 M HCl (aq)?
Make sure  to balance the reaction before you do calculation! Can you also please show how you got the answer
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10/08/17

CONDUCTIVITY IN WATER
Rank the following 0.7 M solutions in order of increasing conductivity in water. .  C6H12O6, (glucose), Ki, Hi, HC2H3O2
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10/08/17

describing electrolyte behaviors
Describe the electrolytic behavior in water for these compounds A) CaCl2  B) Fe(NO3)3  C) I2  D) HC2H3O2. And describe the primary species that exist in solution.
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10/07/17

Why is Ionic Bonding stronger than Hydrogen Bonding?
Hydrogen Bonding is known to be stronger than Permanent Dipoles and Instantaneous Dipoles. However, Ionic Bonding is considerably stronger than Hydrogen Bonding. Why is this? What are the specific... more
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10/07/17

I'm trying to figure out how to express the value of 0.00001 without having to use the decimal place.
Hello,   I'm trying to trade a share price that is worth less than 1 cent. My trading program won't let me input a decimal place.   I'm trying to figure out how to express the value of 0.00001... more
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10/07/17

coefficient and subscript question
h3po4 + 3lioh answer is 3h2o +li3po4where does the 3 in the 3h2o come from and where did the 3 subscript in the question goto from h3po4. it does add up to me because i count 3 atoms from the... more
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10/07/17

which of the following is not of a compound?
a. the smallest part of a compound is called a molecule b. it is always made of at least partly of carbon c. it has a unique composition that is always the same d. it is a substance that consists... more
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10/07/17

Stacey adds so much MgSO4 to an ether solution of hexyl propanoate that no liquid can be seen anymore. How can she recover her product?
Stacey adds so much MgSO4 to an ether solution of hexyl propanoate that no liquid can be seen anymore. How can she recover her product?
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10/07/17

OCHEM question
The partition coefficient for compound A between hexanes and water is 12. Assume 10 grams of A is dissolved in 100mL of water . This aqueous solution is extracted with 100 mL of hexanes. How much A... more
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10/07/17

list the factors that determine the type of bond that will be formed between two atoms
chemistery question
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10/06/17

Al runs 5/8 mi in 10 min. Bill runs 7/8 mi in 10 min. If both runners continue to run at the same rate, how much farther can Bill run than Al in 20 min?
Al runs 5/8 mi in 10 min. Bill runs 7/8 mi in 10 min. If both runners continue to run at the same rate, how much farther can Bill run than Al in 20 min?
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10/06/17

a 24-ounce box box of ceral cost $3.60 . a 36-ounce box of cereal costs $5.04. Which is better buy and why?
i think it is the 24 -ounce of ceral box is a better buy it costs $0.14 per ounce
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10/06/17

explain the reason
Explain ‘chemical equilibrium’ and ‘Le Chatelier’s principle’ ,respectively.Now changes of the reaction conditions A or B are given to the chemical reaction eq.①.Which direction does the chemical... more
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10/06/17

Are glycocalyx and protein molecule on cell membrane have the same function?
Which membrane proteins act as  cell markers, involved in cell signalling and endocytosis? Is it glycocalyx  or other protein molecules in cell membrane?
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10/06/17

The length of a rectangular map is 15 inches and the perimeter is 50 inches. Find the width. Hint: Perimeter = width + length + width + length
The length of a rectangular map is 15 inches and the perimeter is 50 inches. Find the width.Hint: Perimeter = width + length + width + length
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