How many grams of hydrogen gas will be produced when you react 40.0 grams of sodium with 25.0 grams of water?

Fluorine has 7 valence electrons. Which of the following is true of a fluorine molecule (F2) ? a. A pair of electrons will be shared between the fluorine atoms. b. Only 4 valence electrons will travel around each fluorine atom. c.

Which is the best conductor of heat in aluinium, brass, iron, copper

Gastric juices have a pH of 1 or 2. This would indicate which of the following? numerous OH - ions and a high pH numerous OH - ions and a low pH neutral fluids, perfect for decomposition reactions numerous H + ions and a low pH

What is non stoichiometric reaction?

Select the correct equalities for the units shown. 1 cm = 10 mm 1 ft = 3 yd 100 m = 1 cm 1 kg = 1,000 g 12 in = 1 ft Enter the correct answer for each unit conversion. mm = 5 cm 48 in = ft ft = 12 yd 2.5 m = cm 1,000 mL = L

Methane reacts with oxygen in the following combustion reaction. CH4 + 2O2 → CO2 + 2H2O What bonds are broken in this reaction? A. Four C-H single bonds and two O=O double bonds B. Four C-H single bonds C.

How much water do been plants need to grow?

true or false many scientist that increased levels of this green house gas in our atmosphere is causing climate change around earth

Given an alloy containing 70 percent of copper and 30 percent nickel, by weight, determine the composition of this alloy in atomic percent. note the atomic weights of copper and nickel are 63.546 and 58.71 grams per mole, respectively.

What is the difference between interpreting and analyzing