True or False: A theory is something that can never be proven correct or incorrect?

9.81 m/s^2 to ft/s^2

An (blank) is an abbreviation for the name of an element and usualy has eighter one or two letters

What conditions could have caused storm 1 to have more rain fall than storm 2

which number should be placed before F2 on the reactants side equation to make equation balanced? Xe + ___F2 > XeF4

Scientific theories often make use of

Steve puts some cheddar cheese in a pan on the stove and starts to melt it. After a little while, there is a layer of oil floating on top of the cheese. From the way the cheese melted, Steve knows it is a A Element B Solid C Mixture D Pure Substance.

Which experimental feature of the MALDI-MS technique allows the separation of ions formed after the adduction of tissue molecules? A) Distance travelled by ions depends on the ion charge. B) Velocity of ions depends on the ion mass-to-charge ratio.

Which temperature is required for the cell potential to be the standard cell potential? A) - 273°C B) 100°C C) 25°C D) 0°C

1. the purpose of the aqueous solutions in a galvanic cell is to? a. provide ions to be oxidized and reduced b. provide a path for the free flow of electrons c. maintain charge balance in the cell d. correct any volume changes in the cell 2.

A. Identify which of the following substances dissolve in water, explaining why for each example: CH4, He, MgSO4, NaHCO3 b.