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hfskibo:
Group Title
Gregor Mendel grew lots of peas during his experiments. After collecting data on all the peas, he used what he had learned about statistics …
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

allikatt:
Group Title
Help calculating this?
The boiling point of an aqueous solution is 102.17 °C. What is the freezing point?
 updated one year ago
 10 replies
 No Medals Yet
Mathematics

allikatt:
Group Title
How do I solve this kind of problem?
What is the pH of 0.010 M aqueous hypochlorous acid? (Ka of HOCl=3.5*10^8)
 updated one year ago
 11 replies
 2 Medals
Mathematics

allikatt:
Group Title
How can you look at a compound and know if it's a weak acid or base? I can't seem to figure it out.
 updated one year ago
 5 replies
 1 Medal
Mathematics

allikatt:
Group Title
Help me out?
The Ka value for acetic acid, CH3COOH(aq), is 1.8× 10–5. Calculate the pH of a 1.60 M acetic acid solution.
 updated one year ago
 5 replies
 2 Medals
Mathematics

allikatt:
Group Title
Help me out, please?
A mass of 14.72g of (NH4)2 SO4 (molar mass = 132.06 g/mol) is dissolved in water. After the solution is heated, 30.19 …
 updated one year ago
 5 replies
 1 Medal
Mathematics

allikatt:
Group Title
Help please?
What mass of Zn(NO3)2 (molar weight 189.4 g/mol) must be diluted to a mass of 1 kg with h2o to prepare 97 ppm Zn2+ (aq)?
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

allikatt:
Group Title
Help please?
What is the boiling point of a solution containing .852 g naphthalene (C1C0H8, molar weight 128.2 g/mol) dissolved in 14 g ben…
 updated one year ago
 4 replies
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Mathematics

allikatt:
Group Title
Help determining reaction order, please?
Assume that 2NO(g) + O2(g) > 2NO2(g) proceeds via the following rate expression:
…
 updated one year ago
 4 replies
 1 Medal
Mathematics

allikatt:
Group Title
Can someone explain please?
If an elementary reaction involves the collision of two identical molecules, then the elementary reaction is __…
 updated one year ago
 4 replies
 1 Medal
Mathematics

allikatt:
Group Title
Help please?
Suppose a 3% wt solution of poly(vinyl alcohol) in water is prepared from the polymer sample having molar mass 75,000 g/mol. C…
 updated one year ago
 3 replies
 2 Medals
Mathematics

allikatt:
Group Title
Can someone please explain this question?
A solution of H2SO4(aq) with a molal concentration of 3.97 m has a density of 1.216 g/mL. What is…
 updated one year ago
 6 replies
 No Medals Yet
Mathematics

SamiMarie:
Group Title
Which is the correct molecular geometry of water?
A. Bent
B. Linear
…
 updated one year ago
 4 replies
 3 Medals
Mathematics

h1995l:
Group Title
How many valence electrons does a carbon atom have?
 updated one year ago
 1 reply
 1 Medal
Mathematics

allikatt:
Group Title
Question about dehydration reactions. What is the molecular formula made by linking ten glucose molecules together by dehydration actions? T…
 updated one year ago
 3 replies
 1 Medal
Mathematics

nicksolis:
Group Title
A certain segment of DNA can be used as a molecular clock. Its rate of mutation is one mutation per 10 million years. Examine the DNA segmen…
 updated one year ago
 8 replies
 2 Medals
Mathematics

kingkos:
Group Title
one of my story has a duplicate content and I cannot see the duplicate part or the url of the one who similar my story
 updated one year ago
 4 replies
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Mathematics

Yanyan:
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can anyone suggest a problem on any of the characters in greek mythology for my research paper?thanks!
 updated one year ago
 3 replies
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Mathematics

allikatt:
Group Title
What is the empirical formula for titanium oxide?
 updated one year ago
 1 reply
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Mathematics

allikatt:
Group Title
I need help figuring out how to find maximum height, please.
A ball is thrown straight up from the top of a building 144 ft tall with an in…
 updated one year ago
 6 replies
 2 Medals
Mathematics

allikatt:
Group Title
How can you tell the difference in a Lewis Acid and a Lewis Base?
 updated one year ago
 8 replies
 1 Medal
Mathematics

hereweg0:
Group Title
Hey Im writing an editorial about schools offer better and more food choices. Any Ideas on how to start?
 updated one year ago
 1 reply
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Mathematics

aaren123:
Group Title
On a sunny day an office building casts a shadow that is 80 feet long. At the same time, a 5 foot person casts a 6 foot shadow.
 updated one year ago
 3 replies
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Mathematics

tina45:
Group Title
Impact of World War II on American Society
How did the war impact America economically and socially?
 updated one year ago
 1 reply
 1 Medal
Mathematics

santashelper:
Group Title
use luxuriance in a sentence
 updated one year ago
 2 replies
 1 Medal
Mathematics

CaptnJack:
Group Title
Is anyone familiar with MLA work cited pages, I have a question about it
 updated one year ago
 3 replies
 1 Medal
Mathematics

leohua:
Group Title
What is a pinhole camera? How do we know that these devices existed before the nineteenth century?
Who created the first photograph? How wa…
 updated one year ago
 1 reply
 1 Medal
Mathematics

allikatt:
Group Title
How can you tell if a molecule is polar or nonpolar?
 updated one year ago
 4 replies
 1 Medal
Mathematics

sunnyluv10:
Group Title
I need help writing a thesis statement on an interview on why they committed a crime
 updated one year ago
 2 replies
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Mathematics

brittany7781:
Group Title
a scop was a A. performer of medieval poetry B. tribe's historian c. singer of songs D. All of these
 updated one year ago
 1 reply
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Mathematics
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