CHEMISTRY HIGH SCHOOL

A solution is highly concentrated if there is:a large volume of solution

a large amount of solvent and a small amount of solute

a large amount of solute and a small amount of solvent

a high density value for the solution

Answers

Answer 1
Answer: TO be saturated you need an amount of solvent that will not dissolve anymore into the solution.  So, the best answer from the list is C

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Which of the following is an acid-base neutralization reaction? (1 point) Sn + 2HBr yields SnBr2 + H2 HCl + KOH yields KCl + H2O 2AlCl3 + 3Ca(OH)2 yields 2Al(OH)3 + 3CaCl2 2C2H6 +7O2 yields 4CO2 + 6H2O

Which missing item would complete this beta decay reaction?

Answers

The question is incomplete. Complete question is attached below:
.................................................................................................................

Correct Answer is : 54 131Xe

Reason: 
Emission of beta particle from radioactive material increases atomic number by one, but atomic mass number donot change.

In present case, the reactant is 53 131 I. When, iodine emits beta particle i.e. electron, it atomic number increases by one. Hence, it gets converted into Xe. Atomic number of Xenon is 54. 

The equation must include the parent and the daughter nucleus as well as the particle emitted.

What is beta decay?

A beta decay is said to occur when an electron is emitted from an atom. In this case, the daughter nucleus is greater in atomic number than the parent nucleus by one unit.

The question is incomplete. However, the equation must include the parent and the daughter nucleus as well as the particle emitted.

Learn more about beta decay:brainly.com/question/25455333

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What is the mass of 8.12 × 1023 molecules of CO2 gas? (Atomic mass of carbon = 12.011 u; oxygen = 15.999 u.)

Answers

Answer:

8306.76

Explanation:

you just calcuate 8.12 x 1023 and that will give you the answer

PLZ mark me as a BRAINLIEST

What characteristic is common to animals, plants, protists, and fungi?

Answers

They All are Living things.

Using MO theory, predict which of the following species has the longest bond and which the strongest bond, respectively. O2, O2 −, O2 2−

Answers

Did you find the answer? Because I am on that question right now for my chem homework

If the bird species cannot adapt to eat a different source of food, this species of bird will most likely

Answers

The correct answer for the question that is presented is this one: "become extinct." If the bird species cannot adapt to eat a different source of food, this species of bird will most likely become extinct. Given the fact that the climate of the location changes very quickly, and the ecosystem becomes too cold for fruit trees to survive.

Which occurs when two fluorine atoms react to produce a fluorine molecule?(1) Energy is absorbed as a bond is broken.
(2) Energy is absorbed as a bond is formed.
(3) Energy is released as a bond is broken.
(4) Energy is released as a bond is formed.

Answers

The answer is 4. When atoms mix to create a compound, energy is continuously set off, and the compound has a lesser total energy. When a chemical reaction happens, molecular bonds are shattered and other bonds are made to create unalike molecules. For instance, the bonds of two water molecules are shattered to make hydrogen and oxygen.

The change that occurs when two fluorine atoms react to produce fluorine molecule is \boxed{\left( 4 \right){\text{ Energy is released as a bond is formed}}}.

Further Explanation:

The attraction between different atoms, molecules and ions is known as a chemical bond. Such bonds are responsible for the formation of chemical compounds.

An ionic bond is formed as a result of the interaction between a metal and a non-metal. Metals have the tendency to lose electrons while non-metals tend to gain electrons. Due to this, metal atoms form cations by loss of electrons and non-metals become anions with the gain of electrons.

A covalent bond is formed by the mutual sharing of electrons between the bonded atoms. It is also called molecular bond. Such bonds usually exist between two or more non-metals.

The atomic number of fluorine is 9 and it has a configuration of 1{s^2}2{s^2}2{p^5}. It is just one electron short of the stable configuration of neon. When two fluorine atoms approach each other, both share one of their valence electrons and form a single covalent bond. Since {{\text{F}}_{\text{2}}} formed has a complete octet, its stability is quite high. The two fluorine atoms tend to bond with each other to form fluorine molecule so energy is released during the process. Therefore option (4) is correct.

Learn more:

  1. Identification of ionic bonding: brainly.com/question/1603987
  2. What type of bond exists between phosphorus and chlorine? brainly.com/question/81715

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Ionic and covalent compounds

Keywords: chemical bond, ionic bond, covalent bond, fluorine, 9, neon, stability, octet, configuration, electron, fluorine atoms, fluorine molecule. Energy.
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