Why do two isotopes of an element have the same atomic number but different mass numbers?

Which set of products is most likely to result from the combustion reaction shown below? C4H8 (l) + 6O2 (g) A. 2C2H4O6 (g) B. 4CO2 (g) + 4H2O (g) C. 4CO3 (g) + 4H2 (g) D. 4C (s) + 4H2O (l) + 4O2 (g)

Sterling silver is: A) a heterogeneous mixture B) colloid C) an element D) Homogeneous mixture

How many atoms are present in 2 molecules of C6H12O6

What mass of ammonia is formed when 3.75 grams of nitrogen gas react with hydrogen gas according to the balanced chemical equation: N2 (g) + 3H2 (g) - -> 2NH3 (g) ? 3.75 g 4.55 g 7.50 g 9.10 g

When like atoms are joined by a covalent bond the bonding electrons are shared?

A flexible container is filled with 960.0 liters of air at 38 degrees Celsius. If pressure in the container does not change, at what temperature will the container have at a volume of 350.0 liters?

Which subatomic particles are paired with their charges? 1. electron-positive, neutron-negative, proton-neutral 2. electron-negative, neutron-neutral, proton-positive 3. electron-negative, neutron-positive, proton-neutral 4.

Where do you think information is coded in a DNA molecule?

The mole fraction of carbon dioxide in a gas mixture is. 200 there are also. 251 g of nitrogen and. 322 g of oxygen in this gas mixture what is the mass of arbon dioxide in this mixture

How do you do empirical formula