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
lakkis [162]
3 years ago
11

The__ contains all the elements l, arranged according to similarities in their properties​

Chemistry
1 answer:
Inga [223]3 years ago
6 0
It is the periodic table
* if helped you in anyway please be sure to leave a thanks :)
You might be interested in
A liquid that evaporates at a slow rate exhibits __________.
Marizza181 [45]
Strong internolecurar forces (A) hope it helps
3 0
3 years ago
Which ion in the ground state has the same electron configuration as an atom of neon in the ground state?
Ainat [17]
  • Cl-

Lets see how

  • Z for Cl is 9
  • One electron is added so new Z=10

Electronic configuration

  • 1s²2s²2p⁶

Or

  • [Ne]

option B is correct

6 0
2 years ago
Read 2 more answers
How is energy transferred to or from an object if the kinetic energy changes
coldgirl [10]
Typically kinetic energy changes is passed through objects when it crashes
7 0
3 years ago
How many grams of K2O will be produced from 0.50 g of K<br> and 0.10 g of O2?
Rudik [331]

Answer:

0.6g

Explanation:

Given parameters:

Mass of K = 0.5g

Mass of O₂  = 0.10g

Unknown:

Mass of K₂O  = ?

Solution:

To solve this problem, let us write the reaction equation first;

                   4K   +   O₂     →     2K₂O

The reaction above delineates the balanced chemical reaction.

To solve this problem, we need to know the limiting reactant. This reactant is the one that determines the amount and extent of the reaction because it is given in short supply. The other reactant is the one in excess.

Start off by find the number of moles of the reactant;

     Number of moles =  \frac{mass}{molar mass}

         Molar mas of K  = 39g/mol

          Molar mass of O₂   = 2(16) = 32g/mol

 Number of moles of K  = \frac{0.5}{39}   = 0.013moles

 Number of moles of O₂    = \frac{0.1}{32}   = 0.031moles

From the balanced reaction;

          4 moles of K reacted with 1 mole of O₂

         0.013 moles of K will react with \frac{0.013}{4}   = 0.0078 moles of O₂

We see that oxygen gas is in excess. We were given 0.031moles of the gas but only require 0.0078moles of oxygen gas.

The limiting reactant is potassium.

    therefore;

              4 moles of K produced 2 moles of K₂O

             0.013 moles of K will produce \frac{0.013 x 2}{4}   = 0.0065‬moles of K₂O

to find the mass of K₂O;

   Mass of K₂O  = number of moles x molar mass

                Molar mass of K₂O  = 2(39) + 16  = 94g/mol

  Mass of K₂O = 0.0065 x 94  = 0.6g

7 0
3 years ago
CHEMISTRY HELP!: 10 pts.
katovenus [111]
Because of different chemical reactions between the elements<span />
5 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is controlled by the nervous system
    6·1 answer
  • Which of the following is not true? a. The freezing point of sea water is lower than the freezing point of pure water. b. The bo
    15·1 answer
  • What element is necessary for a healthy eye
    12·1 answer
  • How does a catalyst work
    5·2 answers
  • The combustion of ethanol ( C 2 H 6 O) produces
    10·2 answers
  • At STP, what volume of container would be needed to hold 3.2 moles of gas?
    15·1 answer
  • You are given 230 grams of a substance with a half-life of 0.75 years. How much will remain after 3 years?
    14·1 answer
  • How many ions does each of these symbols have, I need answer and my science teacher doesn’t tell us or explain it to us
    12·1 answer
  • How do you calculate the volume of a cube? A. with a graduated cylindar in mL? B. with a triple beam balance in g? C. with a bea
    9·1 answer
  • PLEASE HELP ME YOU DONT HAVE TO DO WORK JUST TELL ME IF ITS RIGHT ON THE ORGANIC AND INORGANIC SIDE PLEASEE
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!