Which procedure would best allow a scientist to observe a chemical property of hydrochloric Acid (Hci) solition?
My answer is B
And I chose b
B is correct although I don't like the wording of the sentence.
I would prefer that it say something like "Adding zinc to the HCI solution and noting that a gas is produced."
He is lying don’t trust him
A cooling the HCI solution until it becomes solid and measure in this temperature
B Adding zinc to the HCI solution and examine whether or not bubbles are produced
C placing a conductivity probe into a beaker of HCI solution to determine if it conducts electricity
D Measuring the mass of an volume of a sample of HCI solution to find its density
youre welcome is right
lol im a water bottle doing a......a 80... question practice.... i hate this
You didn't give any choices so your choice must be right?? BTW, hydrochloric acid is HCl.
Okay, The correct answers to this test are as following, I just took the test using the last answers given, and got two questions wrong.
1. B
Reactivity
2. B
Adding zinc to the HCI solution and observing whether or not bubbles are produced.
3. C
He is incorrect. Dissolving salt in water and evaporation of the water are both physical changes. The reappearance of salt is evidence that the change was reversible by a physical change, so it could not be a chemical change.
4. D
A chemical change occured, so even if Cash heats it the solid will remain.
5. D
If the substance is a liquid or a solid, the production of odor would indicate a chemical change.
6. A
One
7. A
In Transpiration, because some of its properties change, water undergoes a physical change but keeps its identity. In photosynthesis, because its identity changes, water undergoes a chemical change.
8. A
Production of odor.
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I hope this helps^^ Stay safe, and remember to wash your hands^^
The correct answers are
1. B
2. B
3. A
4.D
5.D
6.A
7.B
8.A
Rip Ms. Sue
im from Australia btw