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ElenaW [278]
3 years ago
9

Acid and bases virtual lab

Chemistry
2 answers:
jonny [76]3 years ago
7 0
No i no idea why why did no one ever mean that i just got me a picture
Sonja [21]3 years ago
6 0

Answer:  Lab - refer to attached -

All correct, completed vital lab for Acid and bases

Explanation:  Mark me as Brainliest ;)

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Na3PO4 + AlBr3 ----> ?
Sati [7]
Na₃PO₄(aq)+AlBr₃(aq)→3NaBr(aq)+AlPO₄(s)

This is a double replacement reaction.  You can tell that there has to be 3NaBr molecules since there are 3 Na atoms in sodium phosphate and 3 Br atoms in aluminum bromide.  We also know that Na has an oxidation number of +1 which means PO₄ needs to have an oxidation number of -3 while Br has an oxidation number of -1 which means Al has an oxidation number of +3.  That means that Al³⁺ and PO₄³⁻ can from AlPO₄  
I hope this helps.  Let me know if anything is unclear.
8 0
4 years ago
The elements that touch the zigzag line are classified as
svp [43]

On the periodic table everything to the right of the line is a non metal

Everything to the left is a metal. So the line crosses to the right is NM to left is M

5 0
3 years ago
Which chemical equation demonstrates the law of conservation of mass!
zlopas [31]

Answer:

F. 2NO + 02 —> 2NO

H. 4NH3 + 502 —> 4NO + 6H20

Explanation:

The law of conservation of mass states that matter can neither be created nor destroyed during a chemical reaction but can be convert from one form to another.

2NO + 02 —> 2NO

From the above, the total number of N on the left balance the total number on the right i.e 2 atoms of N on both side of the equation.

The total number of O on the left balance the total number on the right i.e 2 atoms of O on both side of the equation. This is certified by the law of conservation of mass.

4NH3 + 502 —> 4NO + 6H20

From the above, the total number of N on the left balance the total number on the right i.e 4 atoms of N on both side of the equation.

The total number of O on the left balance the total number on the right i.e 10 atoms of O on both side of the equation.

The total number of H on the left balance the total number on the right i.e 12 atoms of O on both side of the equation.

This is certified by the law of conservation of mass.

The rest equation did not conform to the law of conservation of mass as the atoms on the left side did not balance those on the right side

5 0
3 years ago
BRAINLIEST IF YOU GET IT!! 5 STARS & A THANK YOU!!
Keith_Richards [23]

Answer:

B.

Explanation:

Minerals are formed due to chemical composition by rocks are pressured into their formed from dirt and naturally hard things.

7 0
3 years ago
Which sequence represents a portion of a
liraira [26]

Answer:

4. C2H4, C3H6, C4H8

this is the alkane homologous series of hydrocarbons.

Their general formula is CnH2n

you can check this fits for all these compounds

put n = 1, 2, 3 and so on

8 0
3 years ago
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