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
Vilka [71]
2 years ago
8

What is a period on the Periodic Table? *

Chemistry
1 answer:
ella [17]2 years ago
8 0

Answer:

Explanation:En la tabla periódica los elementos están ordenados de forma que aquellos con propiedades químicas semejantes, se encuentren situados cerca uno de otro. Los elementos se distribuyen en filas horizontales, llamadas períodos.

You might be interested in
which example would most likely decrease friction? using cleats, rather than gym shoes, on a field using shaving cream, rather t
rosijanka [135]
"<span>using shaving cream, rather than shaving on dry skin" I believe this is the answer. coz rest of them would increase friction rather than decrease</span>
4 0
3 years ago
Read 2 more answers
Whats the main difference between a double replacement reaction and a single replacement
aivan3 [116]

Answer:

a single-replacement reaction replaces one element for another in a compound. A double-replacement reaction exchanges the cations, or the anions, of two ionic compounds.

7 0
3 years ago
If potassium (K) has a density of 0.86 g/cm3, which element would have a similar density?
Nata [24]

Answer:

C: Sodium

Explanation:

Iron had a way higher density neon has way to know as well as carbon and the closest one is sodium

4 0
3 years ago
Read 2 more answers
Aspirin can be prepared from salicylic acid ( C 7 H 6 O 3 CX7HX6OX3), which has a molar mass of 138.12 g/mol, and acetic anhydri
pychu [463]

Answer: The theoretical yield of aspirin is 4.14 g

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}  \text{Moles of salicylic acid}=\frac{3.20g}{138.12g/mol}=0.023moles

mass of acetic anhydride = density\times volume =1.082g/ml\times 3.71ml=4.01g

\text{Moles of acetic anhydride}=\frac{4.01g}{102.04g/mol}=0.039moles

C_9H_6O_3+C_4H_6O_3\rightarrow C_9H_8O_4+C_2H_3O_2  

According to stoichiometry :

1 mole of salycylic acid require 1 mole of acetic anhydride

Thus 0.023 moles of  salycylic acid require=\frac{1}{1}\times 0.023=0.023moles  of acetic anhydride

Thus salycylic acid is the limiting reagent as it limits the formation of product and acetic anhydride is the excess reagent.

As 1 mole of salycylic give = 1 mole of aspirin

Thus 0.023 moles of salycylic acid give =\frac{1}{1}\times 0.023=0.023moles  of aspirin

Mass of aspirin = moles\times {\text {Molar mass}}=0.023moles\times 180.15g/mol=4.14g

Thus theoretical yield of aspirin is 4.14 g

4 0
3 years ago
What are some ways population size is limited within an ecosystem?
Vsevolod [243]
<span>Population growth is limited in ecosystems because of lack of resources. If there were unlimited resources, a population would grow exponentially. For example, if a single bacterium were placed in a petri dish and was given unlimited resources, it would multiply to cover the entire world within several days. Unfortunately, resources are limited, so populations are too.</span>
6 0
3 years ago
Other questions:
  • Please help with this question... It's six marks to could you put six marks....
    13·1 answer
  • How many molecules are in 7.90 moles of CH4?
    12·1 answer
  • What is the pattern in the charge for elements in each group on the periodic table?
    7·1 answer
  • The speed of light in a vacuum is constant. If the frequency of a light wave increases, what happens to the wavelength of the li
    8·1 answer
  • Which of the following changes will likely increase the solubility of a solid solute but decrease the solubility of a gaseous so
    13·2 answers
  • Suppose a large atom bonds with a small atom.  Will the properties of the new molecule be the same as the large atom, the small
    11·1 answer
  • H2O
    5·2 answers
  • ASAP please answer correctly and I will mark brainliest
    14·1 answer
  • The Davis Mountains in West Texas were once taller than they are now. Which of the following forces most likely caused the mount
    8·1 answer
  • 1.364mol of H2, 0.682mol of S2 and 0.680mol of H2S were mixed in a 2.00L container at 580°C. At equilibrium the concentration of
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!