A property of matter will stay the same during a physical change

The two electrodes cr (s) / cr3 + (aq) and fe (s) / fe2 + (aq) are combined to afford a spontaneous electrochemical reaction. the standard reduction potentials in v for cr3 + (aq) and fe2 + (aq) are - 0.74 and - 0.44, respectively.

Using a gas filled balloon as an example describe what happens to the gas molecules that behave according to Charles's law.

Why don't reactions continue on forever?

Draw the structure (s) of all alkane (s) that have 3-6 carbons and does not have secondary or tertiary carbons.

Be sure to answer all parts. Be sure to report your answer to the correct number of significant figures. Determine Kb of the weak base B whose conjugate acid HB + has Ka 6.6 * 10-4.

Which substance is the limiting reactant when 4.0 g of sulfur reacts with 6.0 g of oxygen and 8.0 g of sodium hydroxide according to the following chemical equation: 2 S (s) + 3 O2 (g) + 4 NaOH (aq) → 2 Na2SO4 (aq) + 2 H2O (l) A. O2 (g) B. S (s) C.

If EG = 19 and FG = 12 then EF = ?

Given the following reaction: 4Fe + 302 → 2Fe2O3 How many grams of Fe2O3 will be produced from 24.0 g of Fe and 5.00 g of O2? grams (round to three significant figures)

Which Group 16 element combines with hydrogen to form a compound that has the strongest hydrogen bonding between its molecules? 1. oxygen 2. selenium 3. sulfur 4. tellurium

How many hydrogen atoms are in 2.80 mol of ammonium sulfide?