According to Dalton's atomic theory, which of the following best describes an atom?

Can be destroyed

Present in all matter

Composed of elements

Does not contain particles

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) ?