Sodium (na) has an atomic number of 11. how many electrons are in the outer electron shell of a neutral sodium atom?

Sphere 1 has 4 positive charges and Sphere 2 has 2 negative charges. What is the charge on each if they are brought together?

You have used 2.4*102 L of distilled water for a dialysis patient. How many gallons of water is that?

The most recent species from which two different species have evolved is a parent. True False

Which gas is the reactant in the chemical reactions of photosynthesis?

Mass defect for oxygen-16 = 0.13261 amu How many kilograms does the mass defect represent? 1.66 * 10-27 kg 2.20 * 10 - 28 kg 3.0 * 108 kg 8.24 x 1025 kg

Children's reactions to divorce often include which of the following groups of behaviors?

Thorium-229 is a highly radioactive isotope. Use the chart to determine the half-life of Th-229. A) 7,340 years B) 8 years C) 16 years D) 22,020 years

Which of the following is true about a municipal bond with a put option? (A) An investor will exercise the option to put the bond if yields rise significantly. (B) An investor must have the issuer's permission to put the bond.

A certain ore is 37.3% nickel by mass how many kilograms of this ore would you need to dig up to have 10.0g of nickel

What would be the change in pressure in a sealed 10.0 L vessel due to the formation of N2 gas when the ammonium nitrite in 1.00 L of 0.500 M NH4NO2 decomposes at 25.0°C?