Describe a way to separate iron filings from sand.

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In the molecular orbital model of benzene, the six p atomic orbitals combine to form how many molecular orbitals?

How many daltons is in an ion with 15 protons, 16 neutrons and 17 electrons?

This is how osmium appears in the periodic table. A purple box has O s at the center and 76 above. Below it says osmium and below that 190.23.

Which statement is true? A) Kinetic energy becomes potential energy in chemical reactions. B) Matter can be created or destroyed, but energy cannot. C) Matter and energy are conserved in chemical reactions.

Which of the following molecules is non polar? A. HF. B. HCN. C. NH3. D. CF4

Hf is a stronger acid than nh + 4. which base would be stronger: f - or nh3? 1. f - 2. both bases would be equal in strength. 3. nh3 4. cannot tell from the information given. 5. neither f1 - nor nh3 would be bases.

The concentration of commercially available concentrated nitric acid is 70.0 percent by mass, or 15.9 M. Calculate the density and molality of the solution.

Whats 2 properties of iron?

Which light packs the highest energy per photon

Which of the following hydrocarbons will most likely be found around cows?