When you blow dry your hair is it physical or chemical change

How many moles of sulfate ions (SO42-) are present in 1.5 mol of Al2 (SO4) 3?

What is the primary way that metamorphic rocks form? A. Lava erupts from Earth and cools. B. Water, wind, and gravity move particles from one place to another. C. Rock fragments break apart and collect as sediment. D.

Solar panels use which of the following energy sources to generate electricity?

As the amount the object's of mass increase, what happened to the amount of force needed to begin moving the object? Explain. Do you need to continue applying force on an object to keep it moving? Explain why.

If your unknow solid has an impurity that is insoluble in cyclohexane, will this impurity result in the molar mass of the unknown solid being recorded as high, low, or unaffected? Explain.

Where are tidal generators located? A. in the ocean in the deep water B. in the ocean along the coast lines C. in lakes D. on the beaches

Be sure to answer all parts. select the three most acidic hydrogen atoms in lactic acid, ch3ch (oh) co2h, and rank them in order of decreasing acidity. explain your reasoning.

List the elements that produced the most easily identified colors?

What is the result of mixing the two substances shown here together?

Which reaction should be used to convert propene into alkyl halide