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Arada [10]
3 years ago
5

1. A substance that gets dissolved to create a solution is best described as to as

Chemistry
1 answer:
Harrizon [31]3 years ago
5 0

Answer:

Solute

Explanation

A substance that gets dissolved to create a solution is best described as to as

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what is the concentration of a solution, in parts per million, if 0.02 gram of Na3PO4 is dissolved in 1000 grams of water
tiny-mole [99]

One way of expressing concentration is by expressing it by parts per million or ppm. Parts per million is equal to 1 milligram of solute per kilogram of solution. The problem is solved as follows:

 

<span>ppm = 0.02 g (1000mg/1g) /( 1000 g + </span>0.02 g) (1 kg / 1000g)<span> </span>= 2x10^-5 ppm

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3 years ago
Which is an example of Temporal Isolation?
kati45 [8]

Answer:

A. Flowers that bloom in different months

Explanation:

Nature has a way of preventive the interbreeding of closely related species and temporal isolation is one of them. When species reproduce at a different time there is little chance of hybridization (intermixing) between two related species. Since this process occurs before the mating it is also termed as pre-mating isolation.

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Why is the average atomic mass used when calculating grams of a
olga55 [171]

Answer:

B. The elements in the substance are mixtures of their isotopes.

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3 years ago
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If only an element’s atomic number and weight are provided, what other atomic information can be determined for a neutral atom?
tresset_1 [31]

If only an element’s atomic number and weight are provided, the number of protons, electrons and neutrons can also be determined.

<h3>What is atomic number?</h3>

The atomic number of an element is the number of protons in an atom while the mass number is the sum of the atomic number and the number of neutrons.

An atom has three subatomic particles namely;

  • Proton
  • Electron
  • Neutron

The number of protons of an element is the atomic number of that element.

This means that if only an element’s atomic number and weight are provided, the number of protons, electrons and neutrons can also be determined.

Learn more about atomic number at: brainly.com/question/8834373

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I think it’s the third one but not 100% sure
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