Chemistry Middle School

The chemical formula of a compound describes the elements the compound contains and the
A.pH of the compound.
B.conduction of the compound.
C.ratio of elements in the compound.
D.ratio of neutrons to protons in each element.

Answers

Answer 1

Answer:

C.ratio of elements in the compound.

Explanation:

A compound is a substance that constitutes two or more elements in a defined proportion. A chemical compound is different from another compound in what it contains i.e. elements. A chemical formula shows the elements contained in a specific compound. For example, the chemical formula of sodium chloride (NaCl) shows us that it contains Sodium (Na) and Chlorine (Cl) elements as represented by symbols.

In addition to this, a chemical formula also shows the ratio of each element that makes up the compound. An element can have more than one atom in a compound. For example, CaCl2 is the chemical formula for Calcium chloride and it shows is that the ratio of Calcium (Ca) to Chlorine (Cl) is 1:2.

Answer 2

The correct answer is C, the ratio of elements in the compound.

 

Compound:-

A compound is a substance that constitutes two or more elements in a defined proportion. A chemical compound is different from another compound in what it contains i.e. elements.

Chemical formula:-It shows the elements contained in a specific compound. For example, the chemical formula of sodium chloride (NaCl) shows us that it contains Sodium (Na) and Chlorine (Cl) elements as represented by symbols. A chemical formula also shows the ratio of each element that makes up the compound. An element can have more than one atom in a compound. For example, [tex]MgCl_2[/tex] is the chemical formula for Magnesium chloride and it shows that the ratio of Magnesium to Chlorine (Cl) is 1:2.

Hence, the correct answer is C.

To know more about:-

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Related Questions

2 Points
Which separation technique involves heating the components of a solution to
their boiling points?
A. Separation by distillation
B. Separation by density
C. Separation by chromatography
D. Separation by melting point

Answers

Answer:

D. Separation by melting point

Answer:

SEPARATE BY DESTILATION

Explanation: just did the test

22.00 g of CO2 has a volume of 50.00 L and a pressure of 0.8210 atm. What must be the

temperature of the gas?

Answers

Answer:

T = 9.875K

Explanation:

The ideal gas Law is PV = nRT.

P = Pressure

V = Volume

n = amount of substance

R =  8.314 J/(K. mol)

T = Temperature in Kelvin

22g CO2

CO2 Molar Mass = 44g/mol

C = 12g/mol

O = 16g/mol

P = 0.8210atm

V = 50L

PV = nRT

0.8210 x 50 = 8.314 x 0.5 x T

41.05 =  4.157T

T = 41.05/4.157

T = 9.875K

What are orbitals?
A. Energy levels occupied by neutrons
B. Areas within an energy level that are occupied by electrons
C. Regions of the atom that contain protons
D. Circular paths around the nucleus

Answers

Answer:

B. Areas within an energy level that are occupied by electrons

Explanation:

Its not A because there are different orbitals on each energy level.

Answer:

B

Explanation:

At a party, you see someone on the floor with grayish skin, having

trouble breathing. This could be a sign of:

AN ALCOHOL OVERDOSE

AN OPIOID OR DEPRESSANT OVERDOSE

A STIMULANT OVERDOSE

ALL OF THE ABOVE

Answers

All of above. Overdoses have side effects like troubles breathing and other

A person having trouble breathing could be a sign of

d. All of the above(alcohol overdose, depressant overdose, or stimulant overdose)

Causes of trouble breathing:

Most instances of windedness are because of heart or lung conditions. These organs are engaged with shipping oxygen to your tissues and removing carbon dioxide, and issues with both of these cycles influence your relaxation.

At a party, if a person feels trouble breathing then it can be due to an alcohol overdose, depressant overdose, or stimulant overdose.

Thus, option D is correct.

Find more information about Breathing here:

brainly.com/question/766725

When electrons are filling energy levels, the lowest energy sublevels are
occupied first. This is
A. None of these
B. The Aufbau principle
C. Hund's rule
D. Conservation of energy
Reset Selection

Answers

D. Conservation of energy

Which statement describes a periodic trend of first ionization energy?
O A. It tends to decrease from left to right across a period.
B. It remains the same within a period.
O C. It tends to increase from top to bottom of a group.
D. It tends to decrease from top to bottom of a group.

Answers

Answer:

D

Explanation:

when ionic radius gets bigger, the valence electron is repelled further away from the nucleus due to higher number of principal quantum shells. it experiences less electrostatic forces of attraction with the nucleus and requires less energy to remove.

Where are you likely to find Safety Data Sheets at the client site? (choose the
best 2 options)
On the computer as an electronic file
In a work area where the chemicals are stored or used
In the manager's office
In the lobby area

Answers

In the work area where they whip up the crack

Any moving object has _______________ energy A.kinetic B.potential C.gravitational potential

Answers

Any moving object has kinetic energy

Answer:

Kinetic

Explanation:

potential means it has the POTENTIAL to move, gravitational potential energy is when an object isn't moving but the it turns into gravitational kinetic energy since gravity causes it to move. since the object in question is already in motion it proves kinetic energy as the answer.

Compounds formed when non-metals react with metals consist of particles called ionic compound

Answers

what is the question meant to be

What volume of 10,0 M H2SO4 is required to prepare 4.0 L of 0.50 M H2SO4?
A) 0.20 L
B) 0.40 L
C) 0.50 L
D) 1.0L
E) 4.0L

Answers

Answer: A)  0.20 L

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.

According to the neutralization law,

[tex]M_1V_1=M_2V_2[/tex]

where,

[tex]M_1[/tex] = molarity of stock [tex]H_2SO_4[/tex] solution = 10.0 M

[tex]V_1[/tex] = volume of stock [tex]H_2SO_4[/tex]   solution = ?

[tex]M_2[/tex] = molarity of dilute [tex]H_2SO_4[/tex]  solution = 0.50 M

[tex]V_2[/tex] = volume of dilute [tex]H_2SO_4[/tex]  solution = 4.0 L

[tex]10.0\times V_1=0.50\times 4.0[/tex]

[tex]V_1=0.20L[/tex]

Therefore, the volume of 10.0 M [tex]H_2SO_4[/tex] solution needed to prepare 4.0 L of 0.50 M [tex]H_2SO_4[/tex] is 0.20 L

In 450 BCE, Greek philosopher Democritus first thought of the existence
of tiny particles that compose everything around us. He named them
'atomos', meaning
A. Invisible
B. Particle
C. Indivisible
D. None of these
Reset Selection

Answers

Answer:

A. Invisible

Explanation:

Answer: Indivisible

Explanation: There was a brilliant philosopher named Democritus, and he proposed the Greek word atomos, which means uncuttable.

Synonyms for uncuttable are as follows:

Joined, inseparable, Indivisible, unbreakable, irreducible, impenetrable, unalterable, indissoluble, unified, permanent, immutable and unchangeable.

Why other answers are wrong:

I simply believe the other user may have had a minor typo which caused such confusion. Who knew one letter could effect an answer that much XD

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