What is the charge on an electron?

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What is the empirical formula of a compound composed of 34.3 g of potassium (K) and 7.02 gof oxygen (O) ?

Do viruses have cell walls?

Which molecule is amphoteric

A student buys a rope at the store the label on the packaging says that the Rope is 2.15 m in length the student measures the robe as 1.85 M what is the students percent error?

What pressure is required to reduce 40 ml of a gas at standard conditions to 20 ml at a temperature of 21? c? answer in units of atm?

Which of these conclusions can be drawn from Rutherford's experiment? A: Each atom contains electrons. B: The nucleus of an atom can be split. C: Each atom contains protons. D: Atoms are mostly empty space.

Describe one major laboratory accident mentioned in the training presentation, what chemicals were involved, the type of PPE that was worn at the time of the accident, and how it could have been prevented.

Which process creates food for plants in order to maintain homeostasis? Breathing Cell division Cellular respiration Photosynthesis

Describe a proton, neutron, and electron. Where are these particles located inside an atom.

A sample of gas is at 273°K and 2.00 atm with a volume of 6.00 liters. When the gas is compressed to 3.00 liters and the pressure increases to 3.00 atm, what is the new temperature of the sample?