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Pepsi [2]
3 years ago
15

PLEASE HELP AND DONT YOU DARE GIVE ME THE LINK

Chemistry
1 answer:
IgorLugansk [536]3 years ago
3 0

Answer:

animals and other living things

Explanation:

All living organisms have been classified and grouped into a hierarchical system of classification. Kingdom is the highest level in this system comprising of 6 other levels. However, there are different kingdoms that harbors different organisms. The kingdoms are: animalia, plantae, protista, monera, fungi etc.

However, among other kingdom of organisms, organisms in the Kingdom Animalia are the only ones that possesses muscle tissues etc. This shows a contrast between animals and other living things.

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Calculate number of grams in 1.15*10^21 molecules of P2O5
Vlada [557]
To go from molecules, we first need to convert to moles and then convert to grams.

To convert from molecules to moles, we need to divide by Avogadro's constant.

1.15*10^21 molecules * (1 mole/6.022*10^23 molecules) = 0.0019097 moles

To convert from moles to grams, we need to use the molar mass.

The molar mass of P₂O₅ is (2*30.98)+(5*16.00) = 141.96
You can find the molar mass using the periodic table.

0.0019097 moles * (141.96 grams/1 mole) = 0.2711 grams.

Since we have 3 significant digits in 1.15*10^21, that means our final answer is limited to 3 significant digits.

Your final answer is 0.271 grams.
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4 years ago
What is a neutralization reaction?
Kazeer [188]
The reaction of an acid and a base, which forms water and a salt
4 0
3 years ago
The measurement 4.06 x 10^-5g represents:
Hitman42 [59]
<span>The measurement 4.06 x 10^-5g represents: 0.0000406 g</span>
8 0
4 years ago
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A student is examining an object in science class. It is pale yellow,brittle solid, with no shine. The sample is most likely a—
Alex Ar [27]

Answer: non metal

Explanation:

Nonmetals are dull, possess high ionization energies and electronegatives and are typically poor electricity conductors as they're insulators.

Non metals are also brittle and possess low melting point. Therefore, with the explanation, the sample is most likely a non metal.

3 0
3 years ago
What is the subscript present in NaCl?
jonny [76]

Answer:

NaCl or sodium chloride, is commonly known as table salt. ... Subscripts show the ratio of atoms of different elements in the compound. Since there are four hydrogen atoms in the molecule, the subscript 4 follows the symbol for hydrogen.

Explanation:

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