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irakobra [83]
3 years ago
12

What is the atomic weight of silver?

Chemistry
2 answers:
g100num [7]3 years ago
7 0
<span>the atomic mass of silver is 107.8682u. And the atomic number is 47</span>
-BARSIC- [3]3 years ago
6 0
<span>The atomic weight of silver is 107.8682</span>
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Describe how you could use two LB/agar plates, some E. coli, and some ampicillin to determine how E. coli cells are affected by
KiRa [710]

Answer:

For this experiment we are going to take plate 1 as the control plate, so, in it there will be just E. coli in LB/agar; in plate 2, we are going to put E. coli in LB/agar and some ampicillin.  Then, we have to wait for the E. coli colonies to form. After a while, the E. coli growth can be compared on both plates and determine if ampicillin affects or not the E. coli colonies.

Explanation:

If the ampicillin affects negatively E. coli colonies, we are going to observe that in plate 1 (control plate) there are E. coli colonies growing, but in plate 2, there is no E. coli colonies or, at least, there is a fewer number of colonies on it. If ampicillin doesn't affect E.coli, plate 1 (control) and plate 2 (ampicillin experiment) are going to be similar in number of colonies.

8 0
3 years ago
How many moles of h2o are produced when 3.25 moles of o2 react in 2c2h6 + 7o2 ---&gt; 4co2 + 6h2o
Alenkinab [10]

Answer:

2.78 moles of water are produced.

Explanation:

Given data:

Number of moles of H₂O produced = ?

Number of moles of oxygen react = 3.25 mol

Solution:

Chemical equation:

2C₂H₆ + 7O₂       →     4CO₂ + 6H₂O

Now we will compare the moles of water with oxygen.

                O₂          :          H₂O

                 7            :           6

               3.25        :           6/7×3.25 = 2.78 mol

5 0
3 years ago
If 25 g of Al was added to 90 g of HCl, what mass of H2 will be produced?
jok3333 [9.3K]

Answer:

im pretty sure its 2.7 gms

Explanation:

im not for sure tho

3 0
2 years ago
Read 2 more answers
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NemiM [27]

Answer:

Explanation:

Find attach solution

3 0
3 years ago
PLEASE HELP!!!
Brums [2.3K]

Answer: I believe the answer is A

Explanation:

4 0
2 years ago
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