When conducting an experiment, a scientist should: (a) attempt to test every possibility (b) attempt to control the conditions (c) place no limits on the investigation (c) proceed without specific goals

What are valence electrons (be specific) ?

Which of the following will increase the strength of a copper electromagnet A. Adding more loops to the wire B. Using DC current (like from a battery) instead of AC current (like from the wall) C. Increasing the current D.

Which of the following is the best definition of baryonic material? A. form of hypothetical energy that makes up most of the universe B. type of matter that we cannot see but that we believe makes up more than 20% of the universe C.

In which orbitals would the valence electrons for carbon (C) be placed? sorbital and d orbitals s orbital only p orbitals only s orbital and p orbitals

A variety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. Which of the following is most likely to indicate a chemical change when a fuel burns? A. no gas bubbles form B.

Consider a liquid in a piston apparatus that is at equilibrium with the vapor phase. in which direction should the piston be moved to decrease the number of molecules in the liquid phase?

Based on its location in the periodic table, what can most likely be predicted about phosphorus? It has three valence electrons available for bonding. It has three nonbonding electrons. It has five valence electrons available for bonding.

The rate constant is found to be 3.9 x 10-5 M-1 s-1. Calculate the rate of formation of ozone when the concentration of oxygen atoms is 3.0 x 10-14 molar and the concentration of diatomic oxygen is 1.3 x 10-14 molar.

The element Oxygen, O, is an example of which of the following? Question 8 options: A compound B molecule C atom D mixture

The measurement 0.41006 gram, rounded to three significant figures, is expressed as