Decide whether you agree or disagree with each claim below. Magnets attract some metals.

Magnets repel wood.

A magnet must be touching an object to repel it.

Magnets can move other objects from a distance.

Magnets can attract or repel other magnets.

Why is nh3 classified as a polar molecule

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.

About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?