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Chemistry

Emma Frost

Which phrase describes two forms of solid carbon, diamond and graphite, at STP?

(1) the same crystal structure and the same properties

(2) the same crystal structure and different properties

(3) different crystal structures and the same properties

(4) different crystal structures and different properties

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Chemistry

Madeline Hays

What would a 1:1 liquid binary mixture of Cyclohexane and Toluene look like? How would the molecules associate with one another?

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Chemistry

Guest

What is the Ka'aba?

an Islamic deity

a Muslim pilgrim

a book of Sharia laws

an ancient stone temple

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Chemistry

Damion Velasquez

A cylinder has a height of 5.3 cm and a diameter of 3.0 cm. What is its volume?

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Chemistry

Lucas Peters

Define density and erute the formula and units for calculating density

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Chemistry

Kaylynn Mcgrath

A student intended to make a salt solution with a concentration of 10.0 grams of solute per liter of solution. When the student's solution was analyzed, it was found to contain 8.90 grams of solute per liter of solution. What was the percent error in the concentration of the solution?

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Chemistry

Kristen Mcpherson

What value is the closest to the atomic mass of cerium?

Isotope Percent Abundance

136Ce 0.185%

138Ce 0.251%

140Ce 88.450%

142Ce 11.114%

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Chemistry

Kellen Cunningham

Which element could chlorine bond with to form an ionic compound?

helium

oxygen

fluorine

sodium

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Chemistry

Jovani Bryan

Given 4.8 moles of a gas in a 1.8 L container, if the temperature is found to be 31 degrees Celsius, what is the pressure of the gas? (The ideal gas constant is 0.0821 L · atm/mol · K and 1 atm = 760 torr.)

6.79 torr

66.55 torr

6.79 x 100 atm

6.66 x 101 atm

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Chemistry

Lauren Spencer

Write this number to two significant figures in scientific notation. Use the "^" character to indicate the exponent. 4.253

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Chemistry

Chance Campos

AN atoms nucleus contains it's protons and electrons true or false

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Chemistry

Raquel Garcia

What is the difference between parent geometry and actual geometry

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Chemistry

Leandro Hansen

The volume of a gas is halved and the temperature is unchanged. The pressure of the gas is

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Chemistry

Julianna Ayala

Suggest what happens to the other elements from which bread and wood are made when these substances are burned

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Chemistry

Kyson Gardner

What is the formula mass of ethyl alcohol, C2H5OH

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