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Chemistry

Which list of elements contains only metals?

A. carbon, iodine, tin

B. tin, copper, cesium

C. helium, iron, copper

D. iodine, carbon, argon

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Chemistry

If you put Alka Seltzer in water and leave it for about one minute is the solution acidic, basic, or neutral?

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Chemistry

Certain object has a mass of 60 g and a volume of 32.6 cm³ what type of objects is the density

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Chemistry

How important is the resonance structure shown here to the overall structure of carbon dioxide? how important is the resonance structure shown here to the overall structure of carbon dioxide? the resonance structure does provide a significant contribution to the resonance hybrid as it has a + 1 formal charge on a very electronegative oxygen. the resonance structure does not provide a significant contribution to the resonance hybrid as it has a - 2 formal charge on a very electronegative oxygen. the resonance structure does not provide a significant contribution to the resonance hybrid as it has a + 1 formal charge on a very electronegative oxygen. the answer cannot be determined from the information given. submit?

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Conrad Villegas

Chemistry

What is the best description of refraction?

A.

Light hitting a shiny surface and bouncing off in the opposite direction.

B.

Combining red, blue, and green light to make white light.

C.

The bending of light as it travels from one type of matter to another.

D.

Blending the colors blue and red to make purple.

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Chemistry

Galaxy includes: choose all that apply. planetsstarsdust interstellar gas dark matter

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Chemistry

Why can't copper be changed into gold

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Chemistry

Boyle's Law represents the relationship of volume as pressure changes. The constants of Boyle's Law are:

a. pressure and number of molecules of gas

b. volume and temperature

c. pressure and temperature

d. temperature and number of molecules of gas

e. pressure and volume

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Jaylen Stephenson

Chemistry

What is Tyndall effect? Describe an activity to show that a true solution does not show Tyndall effect

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Chemistry

How many carbon atoms are represented by the model below?

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Chemistry

How does a chemical equation express relationship between substance?

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Chemistry

Toxaphene is a pesticide that was applied to cotton crops. If 1.5 kg of toxaphene is applied to 1000 m3 of soil and the soil density is 1700 kg/m3, Determine the toxaphene concentration in the soil in units of ppm.

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Chemistry

What factor determines wether an acid is strong or weak?

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Chemistry

A student prepared an unknown sample by making a dilute solution of the unknown sample. The dilute sample was prepared by adding 5.0 mL of the unknown sample to a 25.0 mL flask. What is the concentration (mM) of the diluted unknown sample that has an absorbance of 0.270

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Chemistry

In which substance do the molecules have the strongest attractions to one another?

a. sugar, a solid

c. sulfuric acid, a liquid

b. hydrogen, a gas

d. water, a liquid

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