05/10/19

If tan A=10 , find sin A

If tan A=10, find sun A
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05/10/19

What type of reaction would this be?

Pentan-1-ol reacts + propanoic acid → pentyl propanoate
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05/10/19

how do I find the new entertainment spending amount and how much money he is adding to his grocery budget?
Jarius is a student working on his budget. In going through his spending for the previous month he found that he spent $252 on groceries, $55 on his cell phone bill, and $49 on entertainment. He... more
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05/10/19

Name the product(s) that are produced and classify the reaction?
2,2-dimethylpropane is added to chlorine gas to create______? type of reaction: (addition, substitution, elimination?)
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05/10/19

Name the product(s) that are produced and classify the reaction?
1-chlorobutane reacts + sodium hydroxide solution → type of reaction: (addition, substitution, elimination?)
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05/09/19

What is the advantage of using starter cultures for growing bacteria?
Many DNA isolation and protein expression protocols contain instructions to use a starter culture of E. coli that is then used to inoculate the main culture. What are the advantages of using... more
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05/09/19

When did the birth of bacteriolgy occur?

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05/09/19

How many moles of KOH would it take to neutralize 0.50 mol H2SO4?
Please explain the answer fully and please be quick because I'm trying to catch up on work that I missed while I'm recovering from being sick.
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05/09/19

A neglected property of water
Water has many unique properties many of which, perhaps even most, are detailed explicitly in physics, chemistry, biochemistry and physiology textbooks. However, there is one property of water... more
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05/09/19

solve to the words problem
if a carpenter removes a slanted wall containing a fireplace to make a corner and puts up new drywall that is 6 ft long on one corner wall and 8 ft corner on the other corner wall, how long was the... more
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05/09/19

Solve the triangle:

Solve the triangle: α = 40°, a = 15, b = 13. a) β = 47.9°, γ = 92.1°, c = 23.7b)No solutionc)β = 47.9°, γ = 92.1°, c = 20.2d)β = 33.9°, γ = 106.1°, c = 22.4
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05/09/19

How many ml of oxygen is required to fully combust propane to produce 785 ml of carbon dioxide?
I really don't understand how to solve it, i only have the balanced chemical equation.
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05/09/19

What process gets rid of bacteria in milk?
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05/08/19

How long would it take a violin to decay if it was kept in a case, undisturbed, in an enclosed space away from the elements?
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05/07/19

How does methamphetamine (meth) damage neurons?
Meth is considered to be neurotoxic by forming reactive oxygen species and oxidizing the neurons. But unlike dopamine, which, by the way, [is neurotoxic due to ROS induced dopaminergic... more
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05/07/19

How are germs created?
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05/06/19

Radioactive decay is the main source of the earth's interior heat: fact or theory?
It's believed the main reason that the interior of the Earth hasn't cooled down in 4 billion years is because of the ongoing decay of radioactive elements that keeps adding more heat than is lost... more
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05/06/19

Does our DNA change during our lives?
As far as I know, DNA is the construction protocol of all organisms on Earth. Does it change when influenced by time and environment (physical laws)? As parents with schizophrenia are more likely... more
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05/05/19

Does the pH value of food have any impact on the way our brain thinks?
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05/04/19

What mathematical models are important in chemistry?
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05/04/19

How is the increasing size of the alkyl groups made?
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05/04/19

A Cube of Fe is Heated...
A 38.5 gram cube of Fe (c=0.45 J/g C) is heated from 23 Celsius to 195 Celsius by a burner. How much energy was absorbed by the cube in kJ?
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05/04/19

Is there any other function of DNA?
We all know that DNA acts as a genetic molecule. Does DNA have any other function in the cell other than being a genetic material and carrier of information?
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05/03/19

Is blood a mixture or a compound?
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05/03/19

Write Complementary Sequence for DNA strand
I have the answer to this problem; however, I cannot seem to figure out why or how to solve it:What is the 5'-3' sequence of the complimentary DNA strand for the following image? The primer... more
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