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
coldgirl [10]
3 years ago
13

How to memorize the first twenty elements of the periodic table with their numbers

Chemistry
1 answer:
levacccp [35]3 years ago
3 0
You could listen to songs about the Periodic Table, or you could make and study Flash Cards. :)
You might be interested in
Why is one side of the moon called "the dark side of the moon"?
Lisa [10]

Answer:

Option C

Explanation:

The answer is option C or "The amount of time it takes to rotate around it's axis is the same amount of time it takes to revolve around Earth."Remember that the Earth and the Moons amount of time to make a full rotation is almost in sync and they're two sides of the moon, one side we do not see and that's because that side is currently faced away from the Earth which is called the dark side of the moon. Each side has two weeks oh night, and two weeks of day because of how long it takes the moon to revolve, so while we have a side towards the Earth which is illuminated by the sun we have another pointing away in the dark.

Hope this helps.

4 0
2 years ago
Hydrogen react ls with oxygen at room temperature to form
Mice21 [21]

Answer:

<em>When molecular hydrogen (H2) and oxygen (O2) are combined and allowed to react together, energy is released and the molecules of hydrogen and oxygen can combine to form either water or hydrogen peroxide.</em>

5 0
3 years ago
Which change does an increase in heat energy cause?
Bumek [7]

Answer:

C more collision between molecules

Explanation:

increase in heat causes increase in kinetic energy of the particles

5 0
2 years ago
The diagram shows a carrier wave before and after modulation. The diagram best represents which type of modulation? FM phase AM
bixtya [17]

Answer: On Edge it's A. FM            

5 0
3 years ago
Read 2 more answers
A chemist takes 50-gram sample of sulfur powder that has a melting point of 115.2 °C. What is the melting point of a 100-gram sa
Viktor [21]

Answer:

115.2 °C since melting point is an intensive property  

Step-by-step explanation:

The melting point of a substance does not depend on how much you have.

For example, the melting point of water is 0 °C, whether it is an ice cube from the refrigerator or in the frozen pond outside.

The freezing point of a substance is an <em>intensive property</em>.

Thus, the melting point of 100 g of sulfur is 115.2 °C because melting point in an intensive property.

7 0
3 years ago
Other questions:
  • In two or more complete sentences, compare singe displacements reactions and double displacement reactions
    8·1 answer
  • The first law of thermodynamics is a restatement of the
    15·1 answer
  • In any pure sample of CO2, the ratio of the mass of carbon to the mass of
    10·1 answer
  • How to solve this: a small dog has consumed a dangerous amount of apap. the vet has ordered: rx acetylcysteine 150mg/kg/stat. yo
    7·1 answer
  • Please select the word from the list measure air pressure
    5·1 answer
  • The different parts of a Test Tube.
    9·1 answer
  • 7. 25 cm = <br> what does that equal??
    11·1 answer
  • Write a chemical equation of Dr. Jeff’s demonstration using a battery to light steel wool on fire. The battery is used to allow
    11·1 answer
  • ____Cl2+____H2=____HCl
    10·1 answer
  • What is the mass of a 32.5-ml sample of ethanol? the density of ethanol is 0.789 g/ml.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!