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
myrzilka [38]
3 years ago
15

Help in apex!!!!

Chemistry
1 answer:
GenaCL600 [577]3 years ago
4 0
<h3><u>Answer</u>;</h3>
  • Halogens
  • Alkali metals
<h3><u>Explanation</u>;</h3>
  • Elements in the periodic table are classified into various categories including alkali metals, alkaline-earth metals, halogens, and noble gases among others.
  • <u>Alkali metals are Group 1 elements in the periodic table.</u> They comprise of elements lithium (Li) through francium (Fr). They have similar characteristics and behavior.
  • <u>Halogens is another category of elements which is a subset of the nonmetals.</u> They comprise group 17 of the periodic table, from fluorine (F) through Astatine (At). These elements are chemically reactive and reacts with other elements such as group 1 and group 2 element.
You might be interested in
Fact about subduction zone?
bazaltina [42]
The subduction's zones boundaries are the biggest collision between two tectonic plates. 
6 0
3 years ago
Read 2 more answers
A gaseous system undergoes a change in temperature and volume. What is the entropy change for a particle in this system if the f
deff fn [24]

Explanation:

Entropy means the amount of randomness present within the molecules of the body of a substance.

Relation between entropy and microstate is as follows.

           S = K_{b} \times ln \Omega

where,      S = entropy

             K_{b} = Boltzmann constant

             \Omega = number of microstates

This equation only holds good when the system is neither losing or gaining energy. And, in the given situation we assume that the system is neither gaining or losing energy.

Also, let us assume that \Omega = 1, and \Omega' = 0.833

Therefore, change in entropy will be calculated as follows.

     \Delta S = K_{b} \times ln \Omega' - K_{b} \times ln \Omega

                 = 1.38 \times 10^{-23} \times ln(0.833) - 1.38 \times 10^{-23} \times \times ln(1)

                 = 1.38 \times 10^{-23} \times (-0.182)

                 = -0.251 \times 10^{-23}

or,             = -2.51 \times 10^{-24}

Thus, we can conclude that the entropy change for a particle in the given system is -2.51 \times 10^{-24} J/K particle.

8 0
3 years ago
Which of the following is a negatively charged particle?
kirza4 [7]

Answer:

B. electron

Explanation:

B. electron

electron is a negatively charged particle

proton is a positively charged particle

7 0
3 years ago
Answer number 3 plzz
SCORPION-xisa [38]

Answer:

energy

Explanation:

it is required energy to remove an electron from an atom

7 0
3 years ago
Work is equal to the what used and multiplyed by the what over which the force was applied
Allushta [10]
W=Fd
Work is equal to the force multiplied by the distance travelled.
4 0
4 years ago
Other questions:
  • The radius of an atom of gold (Au) is about 1.35 Å. How many gold atoms would have to be lined up to span 9.0 mm ?
    15·2 answers
  • The burette is dirty, how does it affect the NaOH?
    6·1 answer
  • Chemical and physical properties for Benzoyl peroxide?
    11·1 answer
  • What two pieces of information do u need to describe force
    6·2 answers
  • How many protons are in the nucleus of an atom with an atomic number of 15?
    8·1 answer
  • How are elements heavier than hydrogen formed?
    9·2 answers
  • The molecules you use in a chemical reaction are called the:
    5·1 answer
  • How can one differentiate between potential and potential difference????​
    12·1 answer
  • Why is the Northern Hemisphere warmer when tilted to the sun?
    9·1 answer
  • How does separating CHEMICALS through DISTILLATION harm the environment ?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!