Using the equation

2H2+O2-->2H2O

If 19 g of oxygen reacts completely, how many grams of hydrogen must react with it?

Question options:

4.8

3.6

1.2

2.4

Round 65.145 meters to 4 significant figures

Calculate the ph of a solution in which [oh-]=7.1*10-3m. express the ph of the solution to two decimal places.

I have a box with a mass of 34kg and I accelerate it at 4m/s. calculate it

Which group appears to have members of the largest atomic radii for a given period?

Determine the amount of atoms in 5.40g B

How is the nucleus of an atom split? radioactive decay chemical reaction collision of atoms collision with a high-speed particle

Geologists may choose to lick a mineral to identify it. What mineral is the geologist expecting with this test?

Al-Qaeda is the name of the group that fought against the Soviet-supported government in Afghanistan. a. True b. False

How are magic minerals different from Felsic minerals? A. Mafic minerals contains lower levels of iron and magnesium. B. Mafic minerals contain more dark-colored, high-density minerals C.

If 3.491 grams of the precipitate was formed, how many moles of strontium bromide were reacted