Changes of State Answers

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Did you read the Student Guide carefully?

yes

The first test you just read about is for appearance. If the substance is a crystalline solid, as shown at right, then the substance is likely

ionic.

covalent.

The second test is for solubility. If the substance is soluble in water, then it is likely

ionic.

covalent.

In a conductivity apparatus, like the one above, you should never touch the while the power is on.

lightbulb

leads

wires

base of battery

Which of the items shown here will protect you from a chemical burn? Select all that apply.

Option

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