1. Simplify.

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A. O 16

B. O

C. 04

D. O

Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese (IV) oxide. 4 HCl (aq) + MnO 2 (s) ⟶ MnCl 2 (aq) + 2 H 2 O (l) + Cl 2 (g) 4HCl (aq) + MnO2 (s) ⟶MnCl2 (aq) + 2H2O (l) + Cl2 (g) A sample of 43.

The noble gases are grouped together in the periodic table. where are the noble gases in the table? a. the top row b. the bottom row c. the far left column d. the far right column user: where on the periodic table are the metals found? a.

The atomic mass of lithium-6 is 6.015123 u. how much energy is required to completely separate the nucleons in a lithium-6 nucleus?

When dissolved in aqueous solution, which pair would behave as a buffer? A) HCl and NaCl B) KOH and KCl C) HNO2 and NaNO2 D) HNO3 and NH4NO3 E) Ca (OH) 2 and CaSO4

Why is displacement useful in finding the density of an irregularly shaped object?

At the same pressure, about 25 times more co2 will dissolve in plasma as o2. why does this occur?

Describe what occurs when a gas is collected by water displacement, including why a table of water vapor pressure values is needed.

The theory of plate tectonics

A sample of sodium reacts completely with 0.568 kg of chlorine, forming 936 g of sodium chloride. What mass of sodium reacted?

When do water molecule forms hydrogen bond with another water molecule which atoms are involved in the interation?