CHEMISTRY HIGH SCHOOL

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

Answer 1
Answer: 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.
Answer 2
Answer:

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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What is the most important role that water plays for living organismsA.all organisms need water to stay clean
B. all organisms need water to transport water into their cells
C.all organisms need water as an energy source
D.all organisms live in water

Answers

All organisms need water to transport chemicals into their cells.

Answer:

All organisms need water to transport chemicals into their cells.

Explanation:

What is the total number of oxygen atoms in the formula MgSO4•7H2O? [The • represents seven units of H2O attached to one unit of MgSO4.](1) 11 (3) 5
(2) 7 (4) 4

Answers

The given formula  MgSO₄•7H₂O contains 11 oxygen atoms. Therefore, option (1) is correct.

What is the chemical formula?

A chemical formula of a compound describes the chemical proportions of each element in a chemical compound or molecule. The chemical formula of a molecule can be written with help of the chemical symbols of elements, numbers (subscripts), and some other symbols, such as brackets, dashes, plus (+) and minus (−) signs, and commas.

A chemical formula contains no words but contains certain simple chemical structures but not complete structures. These formulae must be limited in power than chemical names and structural formulae.

We have two types of formulas in chemistry one empirical formula and the other molecular formula. In the formula MgSO₄•7H₂O, the four oxygen atoms in MgSO₄ and seven from 7 water molcules.

The number of oxygen atoms in the given formula MgSO₄•7H₂O is equal to (4 + 7) = 11 atoms.

Learn more about chemical formula, here:

brainly.com/question/11140581

#SPJ2
11.
O4 means 4 atoms of oxygen. H2O
has one atom of oxygen, so seven "units" of
H2O has 7.

How many moles of sodium hydroxide are contained in 65.0 mL of a 2.20 M solution?

Answers

2.20 M means there are 2,20 mol of NaOH in 1 000 mL of solution. We can use this proportion as a conversion factor:

65\ mL\cdot (2.20\ mol)/(1\ 000\ mL) = \bf 0.143\ mol

In polar coordinates, the origin is called the _____.

Answers

In polar coordinates, the origin is called the pole. Polar coordinate system is actually a two dimensional coordinate system. In this type of system the reference point is known by the name of pole. I hope that this is the answer that you were looking for and the answer has come to your desired help.

Answer:

In polar coordinates, the origin is called the pole.

Explanation:

The position of a point in a polar coordinate system is defined by using the distance from a fixed point and an angle made with a fixed ray from that point. It is a two-dimensional coordinate system.

The polar coordinates is defined as

P(r,\theta)

Where, r is radius and θ is the angle with the polar axis, i.e. positive axis.

In a coordinate system (0,0) is called origin.

In polar coordinate system (0,0) is called pole.

Therefore, in polar coordinates, the origin is called the pole.

A liquid mixture in which particles can be seen and easily separated by settling or filtration is aa. solution.
b. suspension.
c. solvent.
d. solute.

Answers

The answer for this statement is letter B. suspension. The liquid mixture in which particles can be seen and easily separated by settling or filtration is a  suspension. 

Answer:

suspension

Explanation:

What is something a scientific law and a scientific theory have in common? Responses
A Both are backed up by evidence and facts Both are backed up by evidence and facts)
B Neither can be proven correct Neither can be proven correct)
C Both make a statement about a scientific phenomenon Both make a statement about a scientific phenomenon0,
A Both answer "why")

Answers

A. Both are backed up by evidence and facts!
- scientific law is made up of evidence
and facts or not it wouldn’t be a law.
- scientific theories are also backed up!
You need to have facts in order to
make it into a theory.

- it’s important to know that scientific
theories can become scientific laws :)
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