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Which of the following is not a result of Rutherford’s nuclear theory of an atom?

Alkali metals react violently with water to form dissolved alkali metal ion, the hydroxide ion, and hydrogen gas. Which among the following alkali metals is more explosive?

A compound has the empirical formula CH2O and a formula mass of 120.10 amu. What is the molecular formula of the compound? [Given the atomic masses: C (12.01 amu), H (1.008 amu), O (16.00 amu)]

Perform the calculation to the correct number of significant figures (8.01 – 7.50)/3.002

Name of the compound N2O5 is [Given prefixes: 1(mono), 2 (di), 3 (tri), 4 (tetra), and 5 (penta)]

Which of the following about the properties of matter is FALSE?

The gas mileage of a car is 22 km/L. Convert the mileage to miles per gallon. (Given: 1 km = 0.6214 mi; 1 gal = 3.785 L)

We can convert between temperature scales with the following formula. o C = (o F – 32)/1.8 Express 40 o C in  o F. 

A scientific theory is a model for the way nature is and tries to explain not merely what nature does, but why. Which of the following statements represent a theory?

How many He atoms are contained in 2.36 moles of He? (Given: 1 mol = 6.022×1023)