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arsen [322]
3 years ago
10

A flashlight battery is an example of a

Chemistry
1 answer:
kompoz [17]3 years ago
7 0
<span>Dry cell battery

When an automotive battery is fully charged, the sulfuric acid and water mixture will have a specific gravity of about 1.3. Specific gravity is actually the difference in the weight of water in comparison to a specific fluid. It is measured by a hydrometer. The amount of charge in the battery is normally measured by the specific gravity of the battery. The specific gravity of water is 1 and anything less than one is considered less dense while anything that has a specific gravity of more than 1 is considered more dense than water. </span>
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You were rushing to get to school on time and dropped your breakfast food! Choose one atom in that food item and explain the sto
OLga [1]

Answer:

I am going to chose your apple on your breakfast plate. Somebody plantes the apple seed. The apple tree takes time to grow. Once the apples are ready to be picked they are picked. Then the apples are sorted and go off to different schools like your school. Which is where you pick the apple up and put it on your plate.

Explanation:

3 0
2 years ago
2NO(g) + O2 (g) --&gt; 2NO2
Lorico [155]
Take 46g / 46 g/mol = 1 mol NO2 produced
1 mol * 1/2 = 0.5 mol O2 needed  (1/2 ratio between NO2 and O2)
4 0
2 years ago
A student was given a pale blue transparent liquid in a beaker. The student gently heated the solution until the liquid had vapo
Vikki [24]
This is so as the liquid you are heating is copper (II) sulfate (I think so) so when you heat it to saturation, there will still be some water molecules left behind, which will allow copper (II) sulfate crystals to be formed since there is water of crystallisation. so the formula is (CuSO4.5H2O).

Hence, if you heat it for a longer period of time when all the water has evaporated, you will obtain a white powder (CuSO4) as crystals cannot form without water of crystallisation
3 0
3 years ago
Is coal limited or unlimited give reasons
algol13

Answer:

Limited

Explanation:

Once it is used once, it is not reusable. Also, there's a possibility to use ALL the coal there is. That's why it's an unrenewable source, unlike the sun, wind, or water that never ends. Those are renewable

8 0
3 years ago
Read 2 more answers
Its silver tarnishing physical or chemical change.
Mrac [35]
Yes it is a chemical change because it is changing color which shows a chemical change, plus it changes into another element
3 0
3 years ago
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