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Quiz: States of Matter
O asignación tiene fecha vencida (02/18/20 11:59pm)
Chelsea went ice-skating. The ice, her skates, the Zamboni, and the rink building were all examples of solids
she encountered. She developed a model of the particles in the ice. Which of these statements about the
particles present in her model of a solid are true? Choose the three statements that apply.
A. They vibrate in place.
B. They slide past each other.
O
C. They are packed very closely together.
D. They cause the solid to have definite volume and definite shape.

Ch4 is nonpolar and insoluble in water. since all of the hydrogen atoms are evenly spread around the carbon atom even through the c h bond is polar all the poles cancel each other out.

Ijust took the quiz. their is no coefficient needed. : )

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Use the universal gas law formula: pv = nrt now, the key word in this problem is stp, so at stp, temperature will always be 0 degrees celsius and pressure will always be 1.0 atm or 760 torr. given something is at stp, we already know the two variables pressure and temperature. the other thing we can find with the given information is moles. to find moles, just divide grams by molar mass of the element. 16.0g / 2(16.00)g/mol = 0.5 moles plug the values in to the equation pv = nrt (1.0 atm)( x ) = (0.5 )(0+273=273k) the r value is just a constant for when we use atm, liters, moles and kelvin. i'm assuming you want your answer in liters, but if you dont just move the decimal 3 to the right in your final answer. so when plugging these numbers in to your calculator and trying to find x, you get 11.20665 liters using significant figures the answer is 11.2 liters