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Chemistry

Homogeneous mixture definition in chemistry

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Chemistry

Explains why heating a liquid affects its viscosity? The molecules move faster at higher temperatures and overcome attractions more easily. The molecules move faster at higher temperatures, and the attractions between them increase. The molecules move slower at higher temperatures and overcome attractions more easily. The molecules move slower at higher temperatures, and the attractions between them decrease.

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Clarissa Proctor

Chemistry

Which of the following is a correct procedure for the operation of a microscope?

A.

Use the fine focus knob with the low power lens and use the coarse focus knob with the high power lens.

B.

Remove and add slides while the high power lens is selected.

C.

First, put the specimen into focus using a high power lens, then switch to a lower power lens, if needed.

D.

First, put the specimen into focus using a low power lens, then switch to a higher power lens, if needed.

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Chemistry

The Chemist has available four different sizes (based on maximum volume) of graduated cylinders. If the Chemist desires to measure 8 mL, which of the following cylinders is the best choice (based on the criteria given in the class handout) ? Question 1 options:

A) 25 mL b) 50 mL C) 100 mL D) 10 mL

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Chemistry

How many atoms altogether make up one molecule of glucose

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Giana Frederick

Chemistry

A representative particle of carbon dioxide is

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Chemistry

What is the electron dot structure for Silicon

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Chemistry

Most ionic substances are soluble in water because water molecules are?

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Chemistry

Explain the difference between a solar and a lunar eclipse.

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Chemistry

If you have 200 grams of SO4, how many molecules of SO4 will you have?

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Chemistry

Number of CO2 molecules in 0.0180 mol CO2

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Chemistry

Is grinding baking soda into a powder a physical or chemical change

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Chemistry

The definition of chemical is "any substances that has a definite composition." What does "definite composition" mean?

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Chemistry

A student places three ice cubes in a beaker and allows them to partially melt. if she measures the temperature of the water in the beaker, what will she most likely observe? explain your answer.

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Chemistry

What is the metric unit for density

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