A pound is approximately 0.45 kilogram. A person weighs 87 kilograms. What is the persons weight, in pounds, when expressed to the correct number of significant figures.

Chemistry and physics are a branch of what science?

Does this seem like a good hypothesis? If fresh lemon juice has the highest acid contents with a pH value of 2.0, and we place 14.79mL of 2% reduced fat milk into three containers then add 4.

Which energy level has the least energy? n=1 n=3 n=5 n=7

You are in a car at a stop sign the car accelerates from 0 to45mph in 4 seconds what is ur cars acceleration

How many molecules of ascorbic acid (vitaminC, C6H8 O6) are in a 500 mg tablet?

How many moles of copper are present in a sample of tennantite with a mass of 2370 grams

The Calvin cycle is another name for the

When a solution is considered to have a high concentration of hydrogen ions (H+) is also considered to be? a) acidic b) basic c) neutral d) hot

Why does the sky change colors at sunset? 1 because the sun changes colors 2 because the atmosphere reflects colors 3 because long wavelengths are scattered the least 4 because short wavelengths are scattered the least

Consider the reaction N2 (g) + 3 H2 (g) 2 NH3 (g), which is exothermic as written. What would be the effect on the equilibrium position of adding N2 (g) ?