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
Doss [256]
1 year ago
6

Why did mendeleev leave blank spaces in his version of the periodic table?.

Chemistry
2 answers:
irga5000 [103]1 year ago
6 0

Answer:

Mendeleev left blank spaces in his version of the periodic table because he left the gaps to place elements not known at the time

Leviafan [203]1 year ago
3 0
<h2>Answer: He left blank spaces for <em>undiscovered</em> elements to be added to the table.</h2>

Explanation:

You might be interested in
What's the easiest way to find balance in a chemical equation?
ivann1987 [24]
Well not calculus because that has nothing, well mostly nothing to do with balancing chemical equation, so B or C. Now for me personally B is way faster, though C is sometimes faster if you get lucky the way to solve it is B
6 0
3 years ago
In the reaction 4Al+3O2→_Al2O3 , what coefficient should be placed in front of the Al2 to balance the reaction?
nika2105 [10]

Sorry I came a lil late,

The answer to your question is, 2.

Hope this helps! :)

6 0
3 years ago
Read 2 more answers
Group 2 in the penodic table contains the elements beryllium (Be), magnesium (Mg) , calcium (Ca) , strontium (Sf) )barium (Ba)an
mario62 [17]

Answer:

They are all alkali earth metals.

Explanation:

Their valence shell each has 2 electrons. Also, they are all shiny, silvery-white, somewhat reactive metals at standard temperature and pressure. They form alkaline solutions, hydroxides, when reacting with water and their oxides are found in the earth’s crust.

6 0
2 years ago
Why do some objects float why others sink
Leona [35]
Because so objects are denser than water and some are less dense than water
4 0
3 years ago
Read 2 more answers
How does increasing and decreasing the temperature affect the kinetic energy of molecules? How does this impact heat
coldgirl [10]

Answer: As the temperature of a molecular system increases, the kinetic energy of molecules also increase. Also as the temperature of a molecular system decreases, the kinetic energy of the molecules will also decrease.

Explanation:

James Clerk Maxwell developed the kinetic-molecular theory (KMT) of gases. In this theoey, five assumptions concerning an ideal gas was made. One of the them was that," the average kinetic energy of the gas molecules is proportional to the temperature of the gas". This simply means that a s the temperature of a molecular system increases, the kinetic energy of molecules also increase. Also as the temperature of a molecular system decreases, the kinetic energy of the molecules will also decrease.

Also another scientist known as Rudolf Clausius incorporated energy into the kinetic theory. He proposed that heat is a form of energy that affects the temperature of matter by changing the motion of molecules in matter.

Heat is defined as the flow of energy which is caused by difference in temperature.

In conclusion, when the temperature of a system is increased, the collision of the molecules with one another and the walls of their container increases as more molecules gain more heat energy at higher temperature. While as the temperature of the system decreases, the collision of the molecules will also decrease as molecules lose heat energy at lower temperature.

3 0
3 years ago
Other questions:
  • How many molds of atoms are there in each compound ?<br> 1. Al2S3<br> 2. NaNO3<br> 3. Ba(OH)2
    8·1 answer
  • A chemical bond joins atoms or electrons? together in a molecule
    10·1 answer
  • 20 points and brainliest for best answer
    11·2 answers
  • Which of these best describes the particle motion taking place as CO2 gas is exposed to freezing temperatures?
    14·2 answers
  • Which type of equilibrium exists in a sealed flask containing Br2(ℓ) and Br2(g) at 298 K and 1.0 atm?(1) static phase equilibriu
    14·1 answer
  • What is the molality of a solution containing 8.0 grams of solute in 0.50 kg of solvent?
    9·2 answers
  • How much of a 10 M solution is needed to make 1 liter of a 1 M solution
    8·1 answer
  • Which of the following sequences of elements would all have four valence electrons?
    15·1 answer
  • 6. A group of students is performing a simple scientific investigation with baking soda and vinegar. The students place vinegar
    14·1 answer
  • If gatorade g series, endurance formula, contains 14 grams of carbohydrate per 8 ounces, how many ounces should a basketball pla
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!