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Erika Peterson
Chemistry
Copper has a density of 8.96 g/cm3. what is the volume of a copper block that has a mass of 45.0 g? hint: you have to rearrange the density equation to solve for volume. 0.199 cm3 5.02 cm3 5.02 g/cm3 403 cm3
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Guest
Chemistry
For the following reaction, KP = 0.455 at 945°C: At equilibrium, is 1.78 atm. What is the equilibrium partial pressure of CH4 in atm?
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Jacey Petersen
Chemistry
The heat of fusion for water is the amount of energy needed for water to
a. freeze.
b. boil.
c. melt.
d. evaporate.
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Sunday
Chemistry
Which are examples of contact forces?
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Rico
Chemistry
Nitrogen has two naturally occuring isotopes, N-14 and N-15. The atomic mass of nitrogen is 14.007 amu. Which isotope is more abundant in nature?
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Josue Rollins
Chemistry
Which element has the greatest electronegativity?
a. Chlorine
b. Oxygen
c. Sulfur
d. Phosphorus
e. Fluorine
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Campbell Mendez
Chemistry
Why is the blood that flows from the heart bright red rather than dark red?
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Ean Serrano
Chemistry
To what part of a plant does the stem sliver water and nutrients
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Zayden Vaughan
Chemistry
What does a dissolved salt look like?
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Cameron Barnes
Chemistry
Which one of the following statements is true? Both chemical and physical changes can involve a change in appearance. Neither chemical nor physical changes involve a change in appearance. Only physical changes involve a change in appearance. Only chemical changes involve a change in appearance.
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Belen Bridges
Chemistry
Describe when an ionic compound can conduct electricity
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Geovanni Morse
Chemistry
A element which is not a monatomic
A. Helium
B. Argon
C. Iron
D. Oxygen
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Darwin Garrett
Chemistry
How can you use the Periodic Table to determine whether an element is a metal, nonmetal, or metalloid?
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Jasiah Yu
Chemistry
A block of metal has a width of 3.2 cm, a length of 17.1 cm, and height of 4.2 cm. Its mass is 1.1 kg. Calculate the density of the metal.
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Isaiah Haas
Chemistry
Why is the formula CCL4 a nonvolatile molecule with polar covalent bonds?
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