What happens to electronegativity values when moving from left to right across the period in the periodic table

A balloon contains 0.5 L of air at 273 K. Its volume increases to volume of 0.75 L at constant pressure. What is the temperature of air inside the balloon?

Does an acid gain or lose a hydrogen cation, H+, during an acid-base reaction?

Sally has collected a sample of dirt from a riverbank and wants to analyze it. Sally wants a magnified view of the dirt to try and see what it is made of. Which piece of equipment should she use?

Glacier and erosion in a sentence

Determine the volume of 1.00 mole of a gas under the following conditions: T = 273 K, P = 2.00 atm: V = L T = 546 K, P = 1.00 atm: V = L T = 409.5 K, P = 1.50 atm: V = L

What compares a law and a theory?

Explain what domain would best be represented by the "?" in the diagram. A) Eukarya because the organisms are all eukaryotic. B) Eukarya because the organisms are all prokaryotic. C) Bacteria because some of the organisms are autotrophs.

If you are eating a hamburger, it is an example of a consumer eating another consumer. a) true b) false

What mass of NaNO3 is needed to make 3.5 L of 2.2 M solution? (Na = 23.0g, N=14.0g, O=16.0g) Explain in steps

In which group do all atoms have seven valence electrons in the ground state?