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blsea [12.9K]
3 years ago
12

Please help me, I am confused on this.

Chemistry
2 answers:
weeeeeb [17]3 years ago
4 0

Answer:

The First choice is correct

Explanation:

That is the closest example of what is shown

Sophie [7]3 years ago
4 0

Answer:

A

Explanation:

Makes the most scene

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HELP ME PLEASE. no links.
tatiyna

Answer:

Experimental group

Explanation:

i hopes this helps let me know if im wrong:)

4 0
3 years ago
Calculate the specific heat in calories per °C of a 2.00 lb pure iron bar.<br> Plz help me!!!
nekit [7.7K]

Answer:

402.7897

Explanation:

Pretty sure but not 100% about it.

grams in 2 pounds = 907.184 * specific heat of iron = .444

=402.789696

4 0
2 years ago
How many valence electrons does a carbon atom have
KATRIN_1 [288]
4.
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4 0
3 years ago
Read 2 more answers
Hydrogen iodide is not produced by the same method is for hydrogen chloride why with reaction​
Masja [62]

Using Phosphoric acid will work perfectly for producing Hydrogen halides because its not an Oxidizing agent. ...

Using an ionic chloride and Phosphoric acid

H3PO4 + NaCl ==> HCl + NaH2PO4

H3PO4 + NaI ==> HI + NaH2PO4

H2SO4 + NaCl ==> HCl + NaHSO4

This method(Using H2So4) will work for all hydrogen hydrogen halide except Hydrogen Iodide and Hydrogen Bromide.

The Sulphuric acid won't be useful for producing Hydrogen Iodide because its an OXIDIZING AGENT. Whist producing the Hydrogen Iodide... Some of the Iodide ions are oxidized to Iodine.

2I-² === I2 + 2e-

5 0
2 years ago
1. Which of the following is NOT a cation?
Bezzdna [24]
Hey Madoudou


The correct answer is option B (sulfate)


The reason is because "Sulfate" has a negative sign.

In order for it to be a cation, it must have positive sign such as "iron(lll)ion


I hope this helps~
3 0
3 years ago
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