Chemistry » Page 16

Chemistry

If 56.8 ml of bacl2 solution is needed to precipitate all the sulfate ion in a 554 mg sample of na2so4 (forming baso4), what is the molarity of the solution?

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Chemistry

is the number of total atoms on the left side of a balanced equation always equal to the number of total atoms on the right side of the equation?

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Chemistry

Compared to a sample of helium at STP, the same sample of helium at a higher temperature and a lower pressure A) condenses to a liquid. B) is more soluble in water C) forms diatomic molecules. D) behaves more like an ideal gas

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Chemistry

What country was overrun by the Japanese

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Chemistry

Radium has a half-life of 1,620 years. In how many years will a 1 kg sample of radium decay and reduce to 0.125 kg of radium?

a. 1,620 years

b. 3,240 years

c. 4,860 years

d. 6,480 years

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Chemistry

Which the following atoms will not react with water?

a. K

b. Li

c. Pb

d. Na

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Chemistry

Fluorin is often added to drinking water and toothpaste

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Chemistry

What larger energy does light energy come from?

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Maryjane Atkins

Chemistry

Allows water to pass through easily

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Chemistry

Which is a cause of desertification? A. farming B. creating reservoirs C. overgrazing D. driving motor vehicles

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Chemistry

What happens when the threat of exposure to dirty air is reduced in a community?

There is enough oxygen available for people's lungs to function normally

The amount of indoor air pollutants released during a fossil fuel burn decreases

There is a minimal exposure risk to the outdoor dirty air pollutants like carbon monoxide and radon.

The risk of experiencing digestive related diseases from exposure to a buildup of dirty air is low

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Chemistry

Is chicken noodle soup an element, a compound, a homogeneous mixture, or a heterogeneous mixture?

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Shyanne Chandler

Chemistry

How is the amount of sunlight affect the makeup of an ecosystem

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Chemistry

How many moles are in 65 g of carbon dioxide (CO2) ?

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Chemistry

kilograms represented by the mass defect for thorium - 234=3.09x 10-27 kg what is the nuclear binding energy for thorium - 234

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