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Chemistry

Which cannot be separated into simpler substances? compound element solution mixture

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Chemistry

What jobs involve chesmistry

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Chemistry

Think about a neutral magnesium atom. Then think of a magnesium ion with a 2+charge. How are these two alike? How are they different? Be sure to use the terms proton, neutron, and electron in your answer.

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Malakai Jefferson

Chemistry

What subatomic particle is specifically responsible for combining the atoms together to form a new substance?

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Chemistry

A chemist reported that 100 gallons of a gas were available in a laboratory. Which property of the gas did the chemist report?

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Chemistry

Is the water density higher than the aluminum density

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Chemistry

How many moles of molecular oxygen (o2) are consumed in the complete combustion of one mole of pentane (c5h12) ?

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Chemistry

A gas has a volume of 30 L at 105 kPa. What pressure is required to compress the gas to 21 L?

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Chemistry

Using special equipment which layer of the sun atmosphere is visible during a total solar eclipse

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Cristopher Meyer

Chemistry

The characteristic flame test colors of metal ions are due to atomic emission spectra. Duscuss the relationship between the absoption and emission of light and the factors responsible for flame test colors. Include quantization of electron energy levels and Planck's law in your answer.

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Chemistry

Should a bartender use ice and scoop directly from ice machine or use an ice holding device and scoop to make drinks and refill drinks from

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Chemistry

What classification should this reaction have?

4Al + 3O2 → 2Al2O3

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Chemistry

If you start with 100 grams of a radionuclide, how much will you have after two half-lives have passed?

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Dayanara Ibarra

Chemistry

Identify the spectator ions in the following complete ionic equation. 2k (aq) s2 - (aq) pb2 (aq) 2no-3 (aq) →pbs (s) 2k (aq) 2no-3 (aq) express your answers as ions separated by a comma.

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Chemistry

4. A bird left its post and

flew in a triangular path. It

flew 21 yards south, 72

yards east and 75 yards

diagonally to end back at

the post. Is it a right triangle?

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