Write the balanced nuclear equation for β - decay of silicon-32. Include both the mass numbers and the atomic numbers with each nuclear symbol.

It would take one light year to travel to the sun? True or false?

Why does sound travel better in water then air?

What is the pH of a 0.025 M [OH-] solution? 0.94 1.60 9.60 12.40

Why the planets shine though they do not have their own light

Which of these chemical equations is correctly balanced? A. MnO4 + 2 C2H2O4 Mn + 2 CO2 + 4 H2O B. MnO4 + 3 C2H2O4 Mn + 6 CO2 + 4 H2O C. MnO4 + 4 C2H2O4 Mn + 8 CO2 + 4 H2O D. MnO4 + 6 C2H2O4 Mn + 12 CO2 + 12 H2O

A/1 * B/C = D, You find yourself with 17 guilders (a gold coin) but you are planning on taking a trip to a country where the local currency is the florin. The current exchange rate is 2 guilders for every 3 florins.

The burning of wood in a fireplace generates heat and light in the form of flames. Which of the following terms best describes this type of reaction? a. condensation reaction b. exergonic reaction c. endergonic reaction d.

How are the number of protons and the number of neutrons related?

If a sample of copper with a density of 8.90 g/cm3 displaces 13.0 mL of water when placed in a beaker, what is its mass? a 1.46 g b. 0.685 g c. 116 g

Which statement accurately describes the origin and expansion of the universe