What isotope has 25 protons and 17 neutrons

Mildred takes a pound of frozen hamburger meat out of the freezer and puts it into the refrigerator. Which of the following best describes the direction of heat flow?.

What is the name of the binary compound that has the formula AlF3? a. aluminum trifluorate. b. aluminum fluorate. c. aluminum fluorite. d. aluminum fluoride.

use the molar volume of a gas at STP to calculate the density of nitrogen gas at STP. How do I use the molar volume?

A 23.5g aluminum block is warmed to 65.9°C and plunged into an insulated beaker containing 55.0g water initially at 22.3°C. The aluminum and the water are allowed to come to thermal equilibrium.

Carbon forms molecular compounds with some elements from Group 16. Two of these compounds are carbon dioxide, CO2, and carbon disulfide, CS2. Carbon dioxide is a colorless, odorless gas at room temperature.

Neon is a gas made up of only one type of atom. Which term best describes neon?

Formula: C8H9O2N Which element is present in the the greatest proportions by number of particles?

Diatomic molecules of gases are due to ___ bonds.

A hypothetical element consists of 2 isotopes of masses 84.95 amu and 86.95 amu with abundance of 37.1% and 62.9% respectively. What is the average atomic mass?

How do polar molecules respond when they are placed between two metal plates one positively charged and one negatively charged?