A matrix with 4 columns headed oil, cornstarch, sodium chloride, and sodium bicarbonate, and 5 rows. Entries for row headed State of Matter: Liquid, Solid, Solid, Solid. Appearance and Texture: Amorphous, Powdery, Powdery, Powdery. Crystalline Structure (yes or no): No, no, yes, yes. Solubility in Water: none, none, all, mostly. Conductivity (yes or no): No, no, yes, yes.
How good were your predictions in the warm-up?
If a substance is covalent, then it likely will
be a liquid or gas, not be soluble in water, and not conduct electricity.
How does a conductivity apparatus test whether a solution has ionic or covalent substances in it?
A spoon. A beaker partially filled with liquid. A stirring rod. A graduated cylinder. Distilled water in a spray bottle.
Identify all actions that you should take if you have chipped or broken glassware.
Carbon tetrachloride (CCl4) is ionic.covalent.
What properties would you expect for CCl4? Select all that apply.
Calcium oxide (CaO) is ionic.covalent.
The concentration of ionic substances is important for the heart to beat. Your heart responds to electrical impulses that travel through heart cells that are made up mostly of water. Which properties of ionic compounds are important to support this function?
Which substances were ionic?
How good were your predictions in the warm-up? 0 out of 4 right1 out of 4 right2 out of 4 right3 out of 4 right4 out of 4 right
If a substance is ionic, then it likely will
be a crystalline solid, be soluble in water, and conduct electricity.
Select all properties you listed for ionic.
What properties would you expect for CaO? Select all that apply.
Select all properties you listed for covalent.
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