The pH of a solution is 7.30. What is the pOH of the solution? What is the [H3O+]?
What is the [OH-]?
The above solution is what?
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The rock in a lead ore deposit contains 89 % pbs by mass. how many kilograms of the rock must be processed to obtain 1.5 kg of pb?

Predict the products butane (c4h10) + oxygen —>

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line