Ques: Answer the following question given this paragraph: Many covalent compounds, especially those containing carbon and hydrogen, burn easily. In contrast, many ionic compounds do not burn. Q: Which types of compounds are more likely to burn easily? Choices: - hydroxyl - salty - chlorophyll - covalent A:
Ans: covalent

Ques: Answer the following question given this paragraph: Unsaturated hydrocarbons contain at least one double or triple bond between carbon atoms. Hydrocarbons with double bonds are called alkenes. Those with triple bonds are called alkynes. Aromatic hydrocarbons consist of six carbon atoms in a ring shape, connected by alternating single and double bonds. Q: What are hydrocarbons with double bonds called? Choices: - aldehydes - alcohols - amines - alkenes A:
Ans: alkenes

Ques: Answer the following question given this paragraph: Groundwater erodes rock beneath the ground surface. Limestone is a carbonate and is most easily eroded. Q: Groundwater does what to the rock beneath the ground surface? Choices: - accelerates it - creates it - boosts it - erodes it A:
Ans: erodes it

Ques: Answer the following question given this paragraph: A homogeneous mixture is a mixture in which the composition is uniform throughout the mixture. The salt water described above is homogeneous because the dissolved salt is evenly distributed throughout the entire salt water sample. Often it is easy to confuse a homogeneous mixture with a pure substance because they are both uniform. The difference is that the composition of the substance is always the same. The amount of salt in the salt water can vary from one sample to another. All solutions would be considered homogeneous because the dissolved material is present in the same amount throughout the solution. Q: What is the most important characteristic of a homogeneous mixture? Choices: - very reactive - high density - nonreactive - uniform composition throughout A:
Ans:
uniform composition throughout