The neutralization reaction is H3PO4(aq) + 3 NaOH(aq) + 3H2O(l) + Na3PO4(aq)
What is the concentration of the unknown H3PO4 solution?

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

molar mass = grams / number of moles = g/mole  

to find moles = g / molar mass  

to find mass = g = molar mass / moles

i believe the answer is c. "baking" is the gerund, while "baking blueberry muffins" would be the gerund phrase. hope this ! : )

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)