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3 years ago

HELP I GIVE BRANLLISETTTTT PLLLLLSSS HELP NO TROLL PLS OH PLS HELP

Chemistry

2 answers:

Kazeer [188]3 years ago

6 0

Answer:

Explanation:

Who wants a troll anyway

Arisa [49]3 years ago

5 0

Answer:

The answer is Chlorophyll captures light energy > Photosynthesis uses light energy to make sugars and oxygen from carbon dioxide and water > Cellular respiration rearranges the atoms of sugars to release chemical energy > Chemical energy is used to power processes such as cell growth

Explanation:

hope this helps!

Brainliest please?

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A government laboratory wants to determine whether water in a certain city has any traces of fluoride and whether the concentrat

nexus9112 [7]

<u>Answer:</u> The given sample of water is not safe for drinking.

<u>Explanation:</u>

We are given:

Concentration of fluorine in water recommended = 4.00 ppm

ppm is the amount of solute (in milligrams) present in kilogram of a solvent. It is also known as parts-per million.

To calculate the ppm of fluorine in water, we use the equation:

$\text{ppm}=\frac{\text{Mass of solute}}{\text{Mass of solution}}\times 10^6$

Both the masses are in grams.

We are given:

Mass of fluorine = $0.152mg=0.152\times 10^{-3}g$ (Conversion factor: 1 g = 1000 mg)

Mass of water = 5.00 g

Putting values in above equation, we get:

$\text{ppm of fluorine in water}=\frac{0.152\times 10^{-3}}{5}\times 10^6\\\\\text{ppm of fluorine in water}=30.4$

As, the calculated concentration is greater than the recommended concentration. So, the given sample of water is not safe for drinking.

Hence, the given sample of water is not safe for drinking.

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3 years ago

Which is most likely to stay solid at room temperature

aleksandr82 [10.1K]

Answer:

Food

Explanation:

Food is likely to stay solid at room temperature

4 0

4 years ago

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A mineral is described as "metallic." This description refers to its:

abruzzese [7]

Answer: properties

Explanation:

The element which has the properties

Mallablity

Ductility

Lusterous

High electric. Conductivity

High tensile strength is said to be metal.

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3 years ago

In which spear does the dolphins swim A atmosphere B Lithosphere C magnetosphere D hydrosphere

arlik [135]

Hydrosphere because it is water and water is where the dolphins swim.

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4 years ago

Convert the following names to balanced formulas.

yulyashka [42]

You can reduce the charges and subscripts so it is PbS2

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