01/01/20

What is the oxidation number of O in PO4 3-?
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01/01/20

I would like to know if the following statement is true or false.

In the molecule MnO2, the oxidation number of Mn is +4.
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01/01/20

How long will it take for a basketball to fall from a height of 2.7 m?

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12/31/19

Algebraic expression
How do I write an algebraic expression:Five time the sum of a number and 4
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12/30/19

Table of values

Cora is going to ship some gifts to family members, and she is considering two shipping companies. The first shipping company charges a fee of $20 to ship a medium box, plus an additional $2 per... more
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12/29/19

I need help with understanding structural activity relationship of modified compounds.

I synthesized peptoid or mimics of Wollamide a TB antibiotic. I’m seeking to determine the structural activity relationship and understand stereochemistry of each compound. I need to know what’s... more
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12/21/19

Give one reason why a percentage of sand could be too high? Give one reason why a percentage of sand could be too low?

Give one reason why a percentage of sand could be too high? Give one reason why a percentage of sand could be too low?
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12/18/19

teacher buys 30 compasses and 50 rulers for $95. another teacher bought 40 compasses and 40 rulers for $116. how much is each item
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12/06/19

A gold and silver atom wil have a different number of protons in their nuclei?
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12/06/19

How is the cell cycle important to some unicellular organisms?
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12/06/19

How is the cell cycle important to some unicellular organisms?
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12/06/19

How is the cell cycle important to some unicellular organisms?
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12/02/19

​The tea shop served 14 caffeinated teas and 6 decaffeinated teas this morning. ​What percentage of the teas served were caffeinated? ​
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11/26/19

Solving a distance, rate, time problem using a system of linear equations
Flying against the jetstream, a jet travels 4400 miles in 8 hours. Flying with the jetstream, the same jet travels 3640 miles in 4 hours. What is the rate of the jet in still air and what is the... more
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11/21/19

Math Assignment

A college offers tutoring in Math, English, Chemistry, and Biology. The number of students enrolled in each subject is listed below. If the college can only afford to hire 18 tutors, determine how... more
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11/17/19

Suppose you are working at mcdonalds for $10 per hour and you are also working at a bookstore for $8. Write an equation that will tell you how many hours you need at each job to get $220

suppose you are going to a trip and you need $220
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11/12/19

A bowling ball is rolling to the right towards a set of bowling pins. what direction do you think the pins will move after the collision
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11/08/19

To infinity and beyond?
not a question but i came across this website when i was having trouble with my math hw. this helped tremendously and i thank you for that.best of luck to you kind men and woman.i appreciate you.i... more
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11/04/19

chemistry question
you weigh 25.8 grams of BeCl2 and dissolves it in water to a final volume of 200mL. assuming ally he salt dissolves, what is the molarity of this BeCl2 solution?
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11/02/19

how is a recessive allele different from a dominant allele
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10/31/19

catapult has a spring constant of 20 N/m and is pulled back 5 cm. Calculate the initial speed of the projectile if it has a mass of 0.1 kg.
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10/28/19

Convert 25 km to centimeters
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10/28/19

What is the density of an object to the mass of 40.0 g and a volume of 80.0 cm³
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10/26/19

How would you draw the Lewis Dot Structure for H2CF2?
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10/26/19

What is the number of formula units in a 3.26 mol sample of NH4NO3 ? formula units
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