Which of the following is true for an atom which has 29 protons, 34 neutrons and 29 electrons?

Atomic number Mass number

A. 29 34

B. 29 63

C. 34 63

D 34 29

The mass flow rate of gasoline leaving a refinery is 1610 kg/min. The specific gravity of a gasoline is 0.700. A retail gasoline pump is able to fill a 20.0 gallon automobile tank in 1.80 minutes.

How are mixtures and solutions the alike

You have 1.00g of two metals a&b. The specific heat of metal A is 0.568j/g• °c and metal B is 1.34j/g•°c both are heated to a temp. Of 80°c. Which will heat up fastest

In a combustion reaction of C3H8 + 5O2 = 3CO2 + 4H2O, how do you know that the first compounds will produce the nuber of what they did?. Also how do you know that this 2Ca + O2 = 2CaO?

How many milliliters of hydrogen gas are produced by the reaction 0.020 mol of magnesium with excess of hydrochloric acid at STP?

If you have 60 grams of MgCl2 in 5 liters of solution, what is the molarity of this solution?

Is evaporation/condensation a physical or chemical change? Explain

Would the two as yet undiscovered elements A+1 and D+2 react?

Ammonium perchlorate is a powerful solid rocket fuel, used in the Space Shuttle boosters. It decomposes into nitrogen gas, chlorine gas, oxygen gas and water vapor, releasing a great deal of energy.

Determine the number of bonding electrons and the number of nonbonding electrons in the structure of SeCl2.