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Liono4ka [1.6K]
3 years ago
10

Which of these best show a physical change?​

Chemistry
1 answer:
Angelina_Jolie [31]3 years ago
6 0

Answer:

D

Explanation:

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Which is a positive effect of the technology advance of going from a compass to a gps
egoroff_w [7]

Answer:

Compass - Gps                              

Explanation:

I belive the pro's                                      and cons are

                                         GPS             you are trusting a little man made device

the direction you                               to give you directions

are going on                                        and that it won't break or die

a device not a paper map

                                                Compass

You can see north east south and              it is usually carefully crafted for                                                                                                                                                                          o                                                                     outdoors but it has no roads and

west on the compass and                          if given no directions, extremely

you can see the roads follow directions                  confusing until you learn it

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3 years ago
Lewis dot structure for SeO
padilas [110]

Answer:

selenium dioxide

Explanation:

8 0
3 years ago
Single and double replacement reactions practice WS CuCl2 +<br> F2 »<br> CuF2<br> +<br> Cl2
Lapatulllka [165]
CuCl2+F2—>CuF2+Cl2.
This is a single replacement because there is one compound and one element. Picture Cu as ‘A’ Cl2 as ‘B’ and F2 as ‘C.’ So AB+C—>AC+B. A and B “broke up” and that resulted to A going with C to create the compound CuF2 leaving Cl2 alone.
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2 years ago
HELP ASAP!!!!!!
Sav [38]

1, 4, 1, 2, 1

Explanation:

We have the following chemical reaction:

MnO₂ + HCl → MnCl₂ + H₂O + Cl₂

To balance the chemical equation the number of atoms of each element entering the reaction have to be equal to the number of atoms of each element leaving the reaction, in order to conserve the mass.

So the balanced chemical equation is:

MnO₂ + 4 HCl → MnCl₂ + 2 H₂O + Cl₂

Learn more about:

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brainly.com/question/14112113

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Help please? :)
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