In the independent and subordinate clauses in the following sentences, underline the subjects once and the verbs twice.

Example 1. $\underline{\text{Harriet}}$, a horticulturist, $\underline{\underline{\text{raises}}}$ gardenias in her enclosed porch that $\underline{\text{she}}$ $\underline{\underline{\text{uses}}}$ as a greenhouse.

She is fond of all flowers, but she especially loves those with a beautiful fragrance. .

Revise the following sentences to correct dangling or misplaced modifiers. Write the revised sentences on the lines provided.

Example 1. Looking at the disaster, the cause was evident. $\underline{\color{#c34632}\text{Looking at the disaster, I thought the cause was evident.}}$

Rosetta is performing shows for children in hospitals that are very entertaining. ___________________________________________________________________________________________________________________

In the sentences below, underline each adverb clause and circle each subordinating conjunction.

Example 1. I brought the tennis rackets $\underline{\text{\boxed{\text{so that}} is one of the most well-known athletes in the world}}$ we can play right after school.

Please call me soon because I need to make plans for our trip.

In each of the following sentences, identify the underlined subordinate clause by writing above it ADJ for adjective clause or ADV for adverb clause.

Example 1. Last summer we visited Niagara Falls, $\overset{\textit{\color{#c34632}{ADJ}}}{{\underline{\text{which is on the border between New York and Ontario}}}}$.

The two waterfalls $\underline{\text{ that form Niagara Falls}}$ are the Horseshoe Falls in Ontario and the American Falls in New York.

In the sentences below, underline each adverb clause and circle each subordinating conjunction.

Example 1. I brought the tennis rackets $\underline{\text{\boxed{\text{so that}} is one of the most well-known athletes in the world}}$ we can play right after school.

You can borrow the one hundred dollars provided that you pay it back in one month.

Applying Concepts Chlorine gas is produced by the electrolysis of sodium chloride in water in the following reaction: $2 \mathrm { NaCl } + 2 \mathrm { H } _ { 2 } \mathrm { O } \longrightarrow \mathrm { Cl } _ { 2 } + \mathrm { H } _ { 2 } + 2 \mathrm { NaOH }$ What mass of sodium chloride is needed to make 71 g of chlorine gas?

Classify each of the following reactions as exothermic or endothermic: a. paper burning with a bright flame b. plastics becoming brittle after being left in the sun c. a firecracker exploding

List four forms of energy that may be absorbed or released during a chemical reaction.

Which atoms will be found in the products of the following reactions: a. mercury(II) oxide, H$_{g}$O, is heated and decomposes b. limestone, CaCO$_{3}$, reacts with hydrochloric acid, HCl c. table sugar, C$_{12}$H$_{22}$O$_{11}$, burns in air to form caramel

List three signs that could make you think a chemical reaction might be taking place.

List three signs that could indicate that a chemical reaction is taking place.

Describe the information needed to calculate the mass of a reactant or product for the following balanced equation:

$$\mathrm{FeS}+2 \mathrm{HCl} \longrightarrow \mathrm{H}_{2} \mathrm{S}+\mathrm{FeCl}_{2}$$

Explain why balancing an equation requires changing the coefficients in front of chemical formulas rather than the subscripts wit hin chemical formulas.

Determine balanced chemical equations for the following chemical reactions: a. $\mathrm { KOH } + \mathrm { HCl } \rightarrow \mathrm { KCl } + \mathrm { H } _ { 2 } \mathrm { O }$ b. $\mathrm { NaHCO } _ { 3 } \rightarrow \mathrm { H } _ { 2 } \mathrm { O } + \mathrm { CO } _ { 2 } + \mathrm { Na } _ { 2 } \mathrm { CO } _ { 3 }$ c. $\mathrm { Pb } \left( \mathrm { NO } _ { 3 } \right) _ { 2 } + \mathrm { Kl } \rightarrow \mathrm { KNO } _ { 3 } + \mathrm { Pbl } _ { 2 }$