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NemiM [27]
2 years ago
12

20 POINTS I will give brainliest to whoever answers correctly

Chemistry
1 answer:
Romashka [77]2 years ago
6 0

All organisms need four types of organic molecules: nucleic acids, proteins, carbohydrates and lipids; life cannot exist if any of these molecules are missing.

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I have no idea what to do please help me quickly!
Irina18 [472]

Answer:

The farther away the planet the slower the revolution around the earth. the closer the faster.

Explanation:

its like a tetherball pole when it wraps around it gets closer and spins faster and faster untill it stops. Brainliest?

6 0
2 years ago
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What happens when you drop iodine on a leaf?
insens350 [35]
When you drop iodine on a leaf you may observe a colour change of orange/brown to a blue/black complex.

This is because in the leaf there are starch molecules that form a blue/black complex with the starch molecules.

hope that helps :)
6 0
2 years ago
Predict the products of the thermal decomposition of strontium nitrate and show the reaction as a word equation.
Schach [20]

yeag

Explanation:

2SrO + 4NO2 + O. The thermal decomposition of strontium nitrate to produce strontium oxide, nitrogen dioxide and oxygen. This reaction takes place at a temperature of over 570°C

6 0
2 years ago
Which element increases its oxidation number in this reaction? 2Na + 2H2O → 2NaOH + H2
sammy [17]

Answer:

Sodium

Explanation:

-Gradpoint

6 0
3 years ago
A gas expands from a volume of 2.00L at 36.0oC to a volume of 2.50 L, what is the final temperature, if the pressure is constant
lakkis [162]
We shall consider V, the volume and T, the temperature.
According to Boyle's Laws:
\frac{V1}{T1} = \frac{V2}{T2}
In our case:
\frac{2.00}{36.0} = \frac{2.50}{T2} =\ \textgreater \  T2= \frac{2.50*36.00}{2.00} = 45
6 0
3 years ago
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