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german
3 years ago
13

First person with the right answer gets brainliest thanks (btw the numbers on the right are the answers choose the right one)

Chemistry
2 answers:
vredina [299]3 years ago
8 0
You still haven’t posted the picture
a_sh-v [17]3 years ago
7 0

Answer:

there isnt anything

Explanation:

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BRAINLIEST + 20 POINTS
vichka [17]

Answer:

The answer is C (filler)

8 0
3 years ago
Read 2 more answers
In the activity series, any metal on the list can be oxidized by the ions of elements_______it.
Aleonysh [2.5K]

Answer:

Below

Nitric acid

Lead

Sodium nitrate

Explanation:

The activity series is an arrangement of metals in order of decreasing reactivity. Metals that are higher up in the series displace metals that are lower in the series from dilute solutions. Hence, when the ion of a metal that is lower in the series reacts with a metal that is higher up in the series, the latter is oxidized.

Dilute acids dissolve metals above hydrogen in the activity series such as as zinc and lead. Platinum is much lower than sodium in the activity series hence platinum does not react with sodium nitrate.

3 0
3 years ago
The following are units for mass except _____.<br><br> A. kg<br> B. Mg<br> C. mL<br> D. cg
yarga [219]
Cg is not in units for mass
5 0
3 years ago
Help! What will cause an increase in the weight of an object
Vitek1552 [10]
The objects mass I took physical science
7 0
3 years ago
What is the percent composition of nitrogen in a 2.57 g sample of Al(NO3)3?
Lisa [10]

Answer:

19.8% of Nitrogen

Explanation:

In the Al(NO₃)₃ there are:

1 atom of Al

3 atoms of N

And 9 atoms of O

The molar mass of Al(NO₃)₃ is:

1 Al * (26.98g/mol) = 26.98g/mol

3 N * (14g/mol) = 42g/mol

9 O * (16g/mol) = 144g/mol

26.98 + 42 + 144 = 212.98g/mol

We can do a conversion using these molar masses to find the mass of nitrogen is the sample, that is:

2.57g * (42g/mol / 212.98g/mol) =

0.51g N

Percent composition of nitrogen is:

0.51g N / 2.57g * 100

= 19.8% of Nitrogen

6 0
2 years ago
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