An electron:

has a negative charge

is found in the nucleus

emits energy when it moves to a lower energy orbit from an excited state

has the same mass as a proton

Temperature is measured of? A) work B) molecular movement C) chemical energy D) potential energy

Calculate the mass defect for the isotope thorium-234

Explain why the weight of an object is different on earth and on moon even though the objects mass is the same in both place.

You are performing an experiment in your lab. To compare with other experiments you need your results to be in moles. During your final step you collect your product and weigh it. You have 600 grams of Mg (H2PO4) 2 (magnesium dihydrogen phosphate).

How many L of CO2 at STP could be produced from the reaction of 2 L of CH4 at STP with 2 L of O2 at STP? CH4+2O2-2H2O+CO2 A 1L B 2L C 3L D 4L

Which of the following are true statements about equilibrium systems? For the following reaction at equilibrium: CaCO3 (s) ⇌ CaO (s) + CO2 (g) adding more CaCO3 will shift the equilibrium to the right.

How many sulfide ions are present in 23.5g of Sb2S3

2. An automobile tire has a pressure of 210 kPa at 293 K. What will be the tire pressure after driving, if the tire temperature rises to 308 K?

Students measuring the mass of a rock record 6.759 g, 6.786 g, 6.812 g, and 6.779 g. Which other measurement of the block's mass would be most precise? A. 6.702 g B. 6.781 g C. 6.605 g D. 6.858 g

What two elements make up dihydrogen monoxide?