How many Na + ions are in 3.0 moles of Na2O?

Find the ph of a 0.250 m solution of nac2h3o2. (the ka value of hc2h3o2 is 1.80*10-5). express your answer numerically to four significant figures.

Will copper or lead be able to replace zinc ions in solution why

A sample of C3H8 has 8.08 * 1024 H atoms. How many carbon atoms does the sample contain? What is the total mass of the sample?

Table salt and water are examples of

Science greatly advanced when Galileo favored

What makes an acid or base strong?

In a laboratory, Carlos places one plate with grape jelly and another plate with cooked brown rice inside an ant farm. The next day, he finds that both plates are filled with ants.

Which statement is true at STP? (The atomic mass of Zn is 65.39 u.)

A sample of gas has a volume of 2.4 L and a pressure of 1.2 atm. What would the pressure of the same gas sample be if the volume is reduced to 1.8L at a constant temperature?

The elements most likely to form more than type of ion are the ... A. Transition metals B. alkali metals C. halogens D. alkaline earth metals