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Chem Help Fast Studying Almost Bedtime

What is the best time for studying?

“Time is precious” a proverb that everyone knows but seldom values its richness. But a person who knows the secret to time management only value the preciousness of time.If you love and enjoy your education, Every time will be the right time. If you really want a plan to cover certain targets or hours then I would suggest you to,Wake up at 5 in the morning complete your daily needs warm up a bit, take shower and start studying subject which requires memory power. Continue for 3 hours or so and must take short breaks after every 1 hour and take some fresh air.Do your breakfast read the newspaper a bit and then go back to study. Now do something calculative like physics or maths if you are from science. Continue for 2hours. Don't take break this time because its just 2 hours and you need to give lots of focus on calculations. So breaks might deviate you.If you have college , I guess you come back home at 5/6 in the evening take some rest get refreshed eat something and start studying from 7 to 9:30. This is an important 2.5 hours. You need to revise all the subject that you learned today in college or coaching within that short time. Plan it wellDo your dinner and stuffs and return to your study table by 10 and continue till 1. During this 3 hours do something moderate, chemistry for instance.Revision is a must thing for success. Utilize your sundays properly. You can add some extra 2–3 hours in your schedule for revision of the week.And also create weekly targets for better results.So in weekends 12–13 hours and weekdays 8–10hours. I think that's the best way you can utilize time.Good luck! Enjoy the education! Stay disciplined!

I need Chem help FAST?

Liquid carbon disulfide (CS2) reacts with 44.8 L O2 gas to produce the gases carbon dioxide (CO2) and sulfur dioxide (SO2).
A) What is the mass of carbon dioxide produced?
B) What is the mass of sulfur dioxide produced?
C)When making the calculations, did you need to find the number of moles?

Chem need help fast ?

10 total moles: 5 moles Na+ ions and 5 moles OH- ions

Need Chem help fast!!?

For the sole product of a reaction that goes to completion, what information is needed to determine the mass of the product when the number of moles of the reactants is given?

a. The molar mass of the reactants and the molar mass of the products.
b. The volume of the reactants and the molar mass of the products.
c. The molar ratio and the molar mass of the products.
d. Only the molar ratio of the reactants.

Chem help!! Fast!!?

Test is soon and I simply do not get these problems. He said these are the types on it. Please help! ps.I don't need to show work.

1) Calculate how much energy is absorbed by 125g of water if the water temperature incresases by 7.5C. Note the soecific heat of water is 4.184J/gC.

2) Calculate the change in temperature when 10.0 g of water releases 150.0 J of heat energy. The specific heat of water is 4.184J/gC.

3) How much water can be heated 20.0C with 1,000.0 J of heat energy? Water has a specific heat of 4.184J/g C.

4) How much energy is transferred when 30.0 g of water is cooled from 25.0 C to 12.7C? The specific heat of water is 4.184 J/g C.

And 5) How many degrees of temperature rise will occur when a 25.0 g block of aluminum absorbs 10.0kJ of heat? Specific heat of aluminum is 0.897 J/g C.

Thank you to anyone that can help. I have two chemistry tests this week and they both involve different stuff. So my hands are full!!

CHEM QUESTION ! PLEASE HELP FAST!?

2800 = original amount
half of that amount = 1400 = 1 half life
half of that amount = 700 = 2 half lives
half of that amount = 350 = 3 half lives
half of that amount= 175 = 4 half lives

4 half lives in total have passed.

A half life is the amount of time it takes for half of the substance to decay.

CHEM HELP PLEASE HELP FAST?

1.)Describe Thomson’s cathode ray experiment and how the experimental results led to specific changes in the accepted model of the atom. Be sure to include a description of the atomic model that was accepted by the scientific community before this experiment as well as the atomic model that was accepted after this experiment

2.)Write the complete balanced equation for the reaction between AlF3 and CaO.

3.)If 4.88 grams of Zn reacts with 5.03 grams of S8 to produce 6.02 grams of ZnS, what are the theoretical yield and percent yield of this reaction? Be sure to show the work that you did to solve this problem.

unbalanced equation: Zn + S8 ZnS

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