Combining oxygen with hydrogen in a fuel cell produces water and energy that can power a car. how many grams of hydrogen must be added to 800 g of oxygen to produce 900 g of water?

Devante is 26 years younger than Ariana. 2 years ago Arianas age was 2 times devantes age. how old is devante now

Raymond buys bottles of water at $2.10 each and a large pizza at 12.99

Jimmy's fishing boat is sailing near the shoreline when a lighthouse on the top of a 250-foot cliff is lit up. If Jimmy's sight line is 400 feet away from the lighthouse, what is the angle of depression from the lighthouse to the fishing

What is the range of the relation? { (1, 2), (2, 4), (3, 2), (4, 6) } A. { 1, 2, 3, 4) B. { 1, 2, 3, 4, 6} C. { 2, 4, 6 } D. D. {2, 4}

On January 1st Rosie Bank balances was $ 200. During the month, she wrote checks for 115.25 dollars, 315 dollars, and made one deposit of $150.50. Which best represents her checking account balance at the end of the month?

What is the best measurement unit for an elephant? ...

Given that tan θ ≈ 1.072, where 0 < θ <, 2 π find the values of sin θ and cos θ.

How do u convert decimals into an hour and minutes

How much is 15x6 and 6x7?

Anonymous 4 years ago You have a graduated cylinder that you use to measure volume. The cylinder is marked in 0.1 ml increments. Which measurement made using this cylinder contains the correct number of significant digits? A. 9.246 ml B. 1.0 ml C. 1.