When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.
The correct answer is C. 4
There are 4 orbitals in the second shell, and the number increases in further shells.
CaBr2(aq) is an ionic compound which will have the releasing of 2 Br⁻ ions ions in water for every molecule of CaBr2 that dissolves.
CaBr2(s) --> Ca+(aq) + 2 Br⁻(aq)
[Br⁻] = 0.33 mol CaBr2/1L × 2 mol Br⁻ / 1 mol CaBr2 = 0.66 M
The answer to this question is [Br⁻] = 0.66 M
2 Hydrogen Atoms Are Needed To Form Five Water Molecules
