sarahc
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Questions Answered

sarahc:
The fossil record suggests that whales
once had welldeveloped hind flippers.
are descended from one branch of marine reptiles.
…
 updated 10 days ago
 6 replies
 1 Medal
Mathematics

sarahc:
Is this a stressor or a hassle? HELP
 updated 2 months ago
 5 replies
 1 Medal
Mathematics

sarahc:
Is this a stressor or a hassle?
 updated 2 months ago
 4 replies
 3 Medals
Mathematics

sarahc:
NEED SOME EXPERTS :) Once viruses are detected, the number of viruses increases rapidly. This is because ______.
lysogeny produces large n…
 updated 2 months ago
 3 replies
 1 Medal
Mathematics

sarahc:
Which of the following describes a BrønstedLowry base?
a hydrogen ion acceptor
…
 updated 2 months ago
 3 replies
 No Medals Yet
Mathematics

sarahc:
Water molecules move farther apart when water freezes, causing it to expand. Which of the following is a consequence of this property?
W…
 updated 2 months ago
 11 replies
 2 Medals
Mathematics

sarahc:
When sulfuric acid is poured on sugar the volume expands, it turns black and gets very hot. Which of the following best describes this react…
 updated 2 months ago
 5 replies
 1 Medal
Mathematics

sarahc:
Which of the following is not true regarding carbon?
Carbon 12 is radioactive.
…
 updated 2 months ago
 7 replies
 1 Medal
Mathematics

sarahc:
Nucleic acids are polymers of ______ monomers.
fatty acid
DNA
…
 updated 2 months ago
 9 replies
 3 Medals
Mathematics

sarahc:
Nucleic acids are polymers of ______ monomers.
fatty acid
DNA
…
 updated 2 months ago
 2 replies
 1 Medal
Mathematics

sarahc:
CALLING ALL EXPERTS!
Some atoms become unstable because
…
 updated 3 months ago
 6 replies
 2 Medals
Mathematics

sarahc:
What is the equation of a vertical line passing through (–4, –3)?
x = –4
…
 updated 3 months ago
 8 replies
 No Medals Yet
Mathematics

sarahc:
What is the solution set of....
 updated 3 months ago
 10 replies
 1 Medal
Mathematics

sarahc:
Simplify the expression
 updated 3 months ago
 5 replies
 1 Medal
Mathematics

sarahc:
Solve 3 sqrt x2 + 7 = 28
x = –89
x = 9
…
 updated 3 months ago
 10 replies
 1 Medal
Mathematics

sarahc:
Solve. 2x2 + 5x = 12.
x=3/2 and x = –4
x=2 and x=3
…
 updated 3 months ago
 4 replies
 1 Medal
Mathematics

sarahc:
Predict which of the following would shift the equilibrium to the right in the following reaction.
C2H2 + H2OCH3CHO
…
 updated 3 months ago
 4 replies
 No Medals Yet
Mathematics

sarahc:
Which of the following gases will diffuse the fastest at a given temperature?
Cl2
…
 updated 5 months ago
 3 replies
 1 Medal
Mathematics

sarahc:
Which of the following best explains what happens when the kinetic energy of particles in a liquid state decreases?
They move so slowly …
 updated 5 months ago
 4 replies
 No Medals Yet
Mathematics

sarahc:
PLEASE HELP!
Determine the rate law, including the values of the orders and rate law constant, for the following reaction using the experi…
 updated 6 months ago
 5 replies
 1 Medal
Mathematics

sarahc:
It is more important to look at the serving size than the servings per container when reading a food label.
True
…
 updated 7 months ago
 14 replies
 No Medals Yet
Mathematics

sarahc:
Which food would be the better (healthier) choice? A food with _____.
140 calories with 25 calories from fat
…
 updated 7 months ago
 2 replies
 No Medals Yet
Mathematics

sarahc:
A solution is made by dissolving 25.5 grams of glucose (C6H12O6) in 398 grams of water. What is the freezingpoint depression of the solvent…
 updated 7 months ago
 7 replies
 No Medals Yet
Mathematics

sarahc:
If it requires 48.3 milliliters of 0.55 molar nitric acid to neutralize 15.0 milliliters of barium hydroxide, solve for the molarity of the …
 updated 8 days ago
 12 replies
 1 Medal
Mathematics

sarahc:
During the 21st century, immigration reformers have been interested in doing which of the following?
combating illegal immigration
…
 updated 2 months ago
 4 replies
 No Medals Yet
Mathematics

sarahc:
Which statement describes part of the United States' role in the global economy?
The United States has the highest tariff rates in the w…
 updated 8 months ago
 1 reply
 1 Medal
Mathematics

sarahc:
Describe in detail what you know about the enthalpy, entropy, and free energy changes when a sample of gas condenses to a liquid. How does t…
 updated 8 months ago
 7 replies
 2 Medals
Mathematics

sarahc:
A solution is made by dissolving 2.5 moles of sodium chloride (NaCl) in 198 grams of water. If the molal boiling point constant for water (K…
 updated 8 months ago
 3 replies
 1 Medal
Mathematics

sarahc:
A solution is made by dissolving 21.5 grams of glucose (C6H12O6) in 255 grams of water. What is the freezingpoint depression of the solvent…
 updated 8 months ago
 1 reply
 No Medals Yet
Mathematics

sarahc:
CHEM EXPERTS NEEDED :)
 updated 9 months ago
 1 reply
 No Medals Yet
Mathematics
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