Which is more metallic

a) Silicon

b) Aluminum

Why can't the subscripts be changed?

Which change to American life happened as a result of new technology in the late twentieth century? A. Americans could cash their checks in person at the bank. B. Americans could make phone calls from their homes. C.

How many grams of gas are present in a sample that has a molar mass of 70.0 g/mol and occupies a 2.00 l container at 117 kpa and 35.1 degrees celsius?

Determine the molecular formula of a compound with an empirical formula of NH2 and a formula mass of 32.06 g/mol. NH NH2 N2H4 N3H6

Which of the following is the best description of the results of a chemical reaction? A new substance with different properties if formed B The substances seem to disappear after dissolving in water.

If you have 6 moles of CH4 how many moles of H2O can be produced

What is the definition of substance in your own words.

A 1.3 g sample of gold (specific heat capacity = 0.130 J/g °C) is heated using 86.9 J of energy. If the original temperature of the gold is 25.0°C, what is its final temperature?

In what applications might coal replace petroleum based fuel

How many molecules are in 7.5 mol of h2o