05/05/17
Joe paid $23,000 in income tax at a rate of 38%. What was his gross income?
Joe paid $23,000 in income tax at a rate of 38%. What was his gross income?
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05/04/17
how many ml of 30% acid should be added to pure acid to make 60 ml of 55% acid
solve to find ml of acid
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05/04/17
please help me
hydrochloric acid (HCl) is a corrosive acid. When ordered from a chemical supply company, its molarity is 12.0 M. How much of the stock solution of HCl needs to be used to make 1000 mL of a 3.0 M...
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05/04/17
If the half-life of carbon-14 is 5,700 years and you start with 1.00 moles of carbon-14, how many moles of carbon-14 will you have in 13,000 years.
Chemistry
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05/04/17
If a radioactive isotope has a half-life of 31 years. What is the decay rate constant in inverse years.
Chemistry
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05/04/17
A gymnasium is 88 feet long and 76 feet wide. On a blueprint, the gymnasium is 5.5 inches long. What is the width of the gymnasium on the blueprint
I need help on my homework in math because I want to get a good grade and not a really bad or low grade so if you can help then the would be wonderful
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05/04/17
Expected number
If the flu is 95% effective in a given year, and 25750 people get the vaccine, what is the expected number of people who will get the flu in a year?
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05/04/17
The product of 3 and a number subtracted from 16 is 7. Find the number.
NOT SURE HOW TO SET UP THE PROBLEM
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05/04/17
Percentages
If the full cost of a house is 147k and person a contributes 46k towards the deposit and person b contributes 11k.. what percentage of the house would person a own and what percentage of the house...
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05/04/17
how many grams or strontium nitrate are needed to make 250mL of a 0.05m solution?
i need help on this problem
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05/04/17
Explain the difference between a ligand-gated channel and a voltage-gated channel.
xplain the difference between a ligand-gated channel and a voltage-gated channel.Select all answers that apply A) Ligand-gated channels open in response to binding of a chemical while voltage-gated...
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05/03/17
In a titration of 35 mL of HCl is titrated with 32.2 mL of a 0.185M NaOH solution, what is the initial concentration of HCl?
In a titration of 35 mL of HCl is titrated with 32.2 mL of a 0.185M NaOH solution, what is the initial concentration of HCl?
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05/03/17
algebraic reasoning
10cm3 of a normal specimen of human blood contains 1.2g of hemoglobin. A new piece of equipment, requiring significant effort to calibrate, was installed in the lab. The first 5 samples of 25cm3...
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05/03/17
what is the pH of a 315 mL solution containing 0.17 moles of hydrochloric acid
i need in steps
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05/03/17
what is the pH of a 315 mL solution containing 0.17 moles of hydrochloric acid
i need in steps
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05/03/17
if 183.7g of KCLO3 is completly burnt catalytically, what volume of oxygen gas will be obtained at 39 degree and 1200 torr pressure
its ainorganic chemistry numerical.
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05/02/17
The metabolism of triglycerides forms fatty acids:
a. in the stomach and in the small intestine
b. in the mouth
c. in the small intestine
d. in the mouth and stomach
e. in the stomach
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05/02/17
Which of the following does not contribute to the secondary structure of DNA?
a. hydrogen bonds
b. base pairing
c. hydrophobic forces
d. N-glycosidic bonds
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05/02/17
In the tertiary structure of a protein, if -OH interacts with -NH3+, this interaction is classified as:
a. hydrophobic
b. covalent
c. salt bridge
d. hydrogen bond
e. polar
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05/02/17
In proteins, hydrogen bonding plays a role in all of the following except:
a. primary structure
b. secondary structure
c. tertiary structure
d. quaternary structure
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05/02/17
Which of the following components of a membrane accounts for the rigidity in the membrane structure?
a. fatty acid residues
b. surface proteins
c. interior proteins
d. chlolesterol
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05/02/17
a car travelling at 40km-1 speeds upto 50 km h-1 in 4 second. calculate the acceleration of the car
Its of motion chapter
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05/02/17
idk how to do it
the label on 1 1/2 bag of wildflower seeds states that it will cover an area of 375 square feet based on this info what is the number of square feet that 1 pound of wildflower seeds will cover
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05/02/17
Angela ate at the same restaurant four times. Each time she ordered a salad and left a five dollar tip. She spent a total of $54.
I need the equation and the answer to it thank you
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