Which statement best explains how isotopes can have different masses and still be the same element?

What is the charge on Pb in Pb (SO3) 2

Which two factors are most likely to cause a plants guard cell to open its stomata

If you dissolve 8.50 g of ca (no3) 2 in 755 ml of distilled water what is the concentration in molarity of the calcium nitrate solution

How many xenon atoms are contained in 2.36 moles of xenon? 3.92 x 1024 xenon atoms 2.55 x 1023 xenon atoms 1.42 x 1024 xenon atoms 7.91 x 1025 xenon atoms 1.87 x 1026 xenon atoms?

Is electrons gained or lost when a rod becomes positively charged after it is rubbed with a dry silk cloth?

A5.00 liter ballon of gas at 25 degree Celsius is cool to 0 degrees Celsius. What is the volume (liters) of the ballon?

How much thermal energy (q) is required to heat 15.2 g of a metal (specific heat = 0.397 J/G) from 21.0 degrees C to 40.3 degree C

Two gas jars are connected to each other, but they are separated by a closed valve. One gas jar contains oxygen, and the other is empty. What will happen when the valve is opened?

4. Calculate the final concentration if water is added to 1.5 L of a 12 M NaOH solution to make 3.0 L of a diluted NaOH solution. Your answer

Why is it possible to safely drink a solution that contains a 50:50 mixture of equal concentrations of a strong acid and a strong base, either of which, if ingested separately, would be very caustic and damaging?