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Eduardwww [97]
4 years ago
6

Using the periodic table, choose the more reactive metal. Ca or Ra

Chemistry
2 answers:
Semenov [28]4 years ago
8 0
Ra is the most reactive meta
slavikrds [6]4 years ago
4 0
Ra is more reactive then Ca.
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Which of the following hypotheses cannot be tested using the scientific method
Arturiano [62]
I believe it's answer #3. Logically, at least.

You can test #1 through trial and error.
You can experiment #2 also through trial and error.
You cannot test #3 through trial and error, because that would be catastrophic.
You can test #4 through a survey and individual study and data collection.
7 0
4 years ago
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What is the mass of 4.32 mol GaI3? <br> 455 g <br> 1,230 g <br> 1,720 g <br> 1,950 g
denis23 [38]

Answer:

D. 1,950 g

Explanation:

I completed the test and it is the correct answer!

8 0
3 years ago
Which statement describes the Arrhenius interpretation of acids and bases?
Alexeev081 [22]

Answer:

D. It is limited to situations that involve aqueous solutions or specific compounds.

Explanation:

An Arrhenius acid is a substance that increases the concentration of H3O or H+ when dissolved in water. An Arrhenius base is a substance that increases the concentration of OH- when dissolved in water. These definitions tell us that D is indeed limited to situations that involve aqueous solutions or specific compounds, as aqueous means something that's dissolved in water.

A is wrong because the Bronsted-Lowry interpretation has a wider range of applications. Bronsted-Lowry acids and bases don't even need to be aqueous, so it is not limited to just aqueous solutions. They include any substance that can donate or accept a H+.

B is wrong because A is wrong. A and B basically say the same thing, that the Arrhenius interpretation has a wider range of applications than the Bronsted-Lowry interpretation.

C is wrong because the definition of an Arrhenius base is any substance that increases the concentration of OH-, or hydroxide ions. C completely counters this statement.

Here's photo for proof incase you're doubtful of my answer & explanation. Please click the heart if it helped.

6 0
3 years ago
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Which is a compound?<br> a. iodine.<br> b. water.<br> c. calcium.<br> d. air.
alexgriva [62]
The answer is b) Water.

a) and c) options are elements and d) option is a mixture.
4 0
4 years ago
Another name for Rows is ...
timurjin [86]

Answer:

periods

Explanation:

Know the periodic table

- Hope that helped! Let me know if you need a further explanation.

3 0
3 years ago
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