Question 4 Write the net ionic equation for the precipitation reaction that occurs (if any) when each set of solutions is mixed. If no reaction occurs, write NO REACTION. a. NaCl and Pb(C2H3O 2) 2 b. K 2SO 4 and SrI2 c. cesium chloride and calcium sulfide d. chromium (III) nitrate and sodium phosphate
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
Question 4
Write the net ionic equation for the precipitation reaction that occurs (if any) when each set of
solutions is mixed. If no reaction occurs, write NO REACTION.
a. NaCl and Pb(C2H3O 2) 2
b. K 2SO 4 and SrI2
c. cesium chloride and calcium sulfide
d. chromium (III) nitrate and sodium phosphate
Question 6
reaction occurs, identify what type of reaction took place.
a. C 4H6(g) + O 2(g) →
b. NaCl(aq) + Pb(NO 3) 2(aq) →
c. HCl(aq) + Ba(OH) 2(aq) →
d. HClO 4(aq) + Li 2CO 3(aq) →
e. NH4Cl(aq) + KBr(aq) →
f. Aqueous sulfuric acid and aqueous potassium hydroxide
g. Aqueous copper(II) nitrate and aqueous strontium sulfide
h. Aqueous ammonium iodide and aqueous sodium hydroxide
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