1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mote1985 [20]
3 years ago
6

What is a period in chemistry

Chemistry
1 answer:
Dennis_Churaev [7]3 years ago
5 0
A period is the name given to a horizontal row of the periodic table. The periodic table has 7 periods.
You might be interested in
Why doesn't potassium fluoride conduct electricity as a solid?
Korvikt [17]
potassium flouride is an ionic compound and ionic compounds do not conduct electricity in solid form instead it conducts electricity in molten state.Ionic compounds do not conduct electricity in solid state because their ions are fixed while in molten form the ions are free
5 0
3 years ago
Which statement is true of a catalyst?
chubhunter [2.5K]

<u><em>Answer:</em></u>

Correct option is D.

It accelerates the reaction rates of a mixture.

<u><em>Explanation:</em></u>

It is used to speed up a reaction by lowering the activation energy.Catalysis is the backbone of many industrial processes, which use chemical reactions to turn raw materials into useful products.

<u><em>Types</em></u>

There are two types of catalyst (1) Homogeneous (2) Heterogeneous

In a heterogeneous reaction, the catalyst is in a different phase from the reactants. In a homogeneous reaction, the catalyst is in the same phase as the reactants.

6 0
3 years ago
what is the primary function of the cells that make up the majority of cells in the muscular system ​
ANTONII [103]

Answer:

The muscular system is composed of specialized cells called muscle fibers. Their predominant function is contractibility. Muscles, attached to bones or internal organs and blood vessels, are responsible for movement. Nearly all movement in the body is the result of muscle contraction.

5 0
3 years ago
Which equation shows how wavelength is related to velocity and frequency?
Nataly_w [17]

Answer:

The correct option is the option;

\lambda = \dfrac{v}{f}

Explanation:

The wavelength of a wave is the distance between two successive crests of the wave

Therefore, the wavelength, λ, is given by the fraction of the velocity, <em>v</em>, of the wave divided by the frequency, <em>f</em>, (the number of cycles that pass through a point) of the wave

Mathematically, we have;

The \ wavelength, \ \lambda = \dfrac{The \ wave \ velocity, \ v}{The \ wave \ frequency, \ f}

\lambda = \dfrac{v}{f}

4 0
3 years ago
Write the formula for methionine (red = o, gray = c, blue = n, yellow = s, ivory = h).express your answer as a molecular formula
-BARSIC- [3]

We have to get the formula of methionine.

The formula of methionine is

Methionine is an essential amino acid of human. It is white crystalline solid.

The formula of methionine is C₅H₁₁NO₂S. Methionine contains five carbon atoms, eleven hydrogen atoms, one nitrogen atom, two oxygen atoms and one sulphur atom.

It contains one amino group (-NH₂) and one carboxylic acid group (-COOH). Atoms are depicted in C-atom in grey, H-atom in ivory, O-atom in red, N-atom in blue and S-atom in yellow.

3 0
3 years ago
Other questions:
  • When a hypothesis is tested and shown to be incorrect is the experiment a failure?
    7·1 answer
  • These organs make urine by removing waste and water from the blood. What organs are shown in the picturehese organs make urine b
    13·1 answer
  • what do automobile makers mean when they say their cars are more powerful than their competitors' cars
    12·1 answer
  • What pressure will be exerted by 0.57 moles of CO2 at a temperature of 25°C and a volume of 500 ML? _____atm
    15·1 answer
  • 6.Ocean water contains a mixture of salt &amp; woter. It would be classified as?
    8·1 answer
  • What happens to electrons during covalent bonding?
    9·1 answer
  • the pressure on a 205 mL volume of gas is decreased from 985 mm hg to 615 mm hg while constant temperature is maintained, What i
    10·2 answers
  • Why would one ball accelerate more than the other when pushed with the same amount of force?
    5·1 answer
  • Determine the empirical and molecular formula for a compound containing 26.1
    6·1 answer
  • A sample of a gas at room temperature occupies a volume of 24.0 L at a pressure of 602 torr . If the pressure changes to 3010 to
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!