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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
 No Medals Yet
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

FAMNEEDHELP:
Group Title
1. How does the surface tension of water compare with the surface tensions of most other liquids? (1 point)
It is lower.
It is about th…
 updated one year ago
 1 reply
 No Medals Yet
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
 No Medals Yet
Mathematics

Yanyan:
Group Title
can anyone suggest a problem on any of the characters in greek mythology for my research paper?thanks!
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

allikatt:
Group Title
What is the empirical formula for titanium oxide?
 updated one year ago
 1 reply
 No Medals Yet
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
 No Medals Yet
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
 No Medals Yet
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
 No Medals Yet
Mathematics
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