Select the correct answer from each drop-down menu. Complete the sentences in these paragraphs describing the challenge of providing safe drinking water in different areas.

Which real-world scenarios below represent physical and chemical changes? -running a car -exploding fireworks -mixing water and powdered drink mix -combining oil and vinegar to make salad dressing -taking aspirin for a headache -diluting bleach with water-digesting dinner-spreading peanut butter on bread

In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?

How many moles are in 43.9 l of oxygen