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Dimas [21]
3 years ago
10

What is the name of the aluminum ion? Al–1 Al+2 Al–3 Al+3

Chemistry
2 answers:
vaieri [72.5K]3 years ago
7 0

Answer:

Al+3

Explanation:

Got it right on test

Sidana [21]3 years ago
5 0

Most transition metal form more than one cation but aluminum forms the Al3+ cation only.

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Please show work:<br> Question below
ozzi

Answer:

b) 2.0 mol

Explanation:

Given data:

Number of moles of Ca needed = ?

Number of moles of water present = 4.0 mol

Solution:

Chemical equation:

Ca + 2H₂O     →      Ca(OH)₂ + H₂

now we will compare the moles of Ca and H₂O .

                          H₂O        :        Ca                

                             2           :        1

                             4.0           :       1/2×4.0 = 2.0 mol

Thus, 2 moles of Ca are needed.      

         

3 0
2 years ago
The electron configuration of an element is 1s2 2s2 2p1. How many valance electrons does the element have. 1,2,3 or 4
kotykmax [81]

Answer:

3

Explanation:

5 0
3 years ago
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What is the purpose of a catalyst?
marusya05 [52]

Answer:

option c

Explanation:

as catalyst increases the reaction while activation energy is inversely proportional to rate of reaction, so option c is correct

8 0
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