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
Dennis_Churaev [7]
3 years ago
10

Elements in the periodic table are arranged in columns or

Chemistry
2 answers:
elena-s [515]3 years ago
6 0
They are arranged by their atomic number which can be figured by counting how many protons or electrons they have.
lutik1710 [3]3 years ago
3 0
Maybe by protons i forgot how to spell it :(
You might be interested in
Which source is most likely an authority on the subject
german
Please put the answers!
7 0
3 years ago
Read 2 more answers
At a given temperature, the elementary reaction A --->B in the forward direction is first order in A with a rate constant of
Pani-rosa [81]

Answer:

The value of the equilibrium constant for the reaction A ⇒ B is Kc = 1.72 × 10³.

The value of the equilibrium constant for the reaction B ⇒ A is K'c = 5.81 × 10⁻⁴.

Explanation:

For the reaction A ⇒ B, the equilibrium constant (Kc) is equal to the forward rate constant (kf) divided by the reverse rate constant (ki).

Kc=\frac{kf}{ki} =\frac{1.60 \times 10^{2} s^{-1}   }{ 9.30 \times 10^{-2} s^{-1}} =1.72 \times 10^{3}

If we consider the inverse reaction B ⇒ A, its equilibrium constant (K'c) is the inverse of the forward reaction equilibrium constant.

K'c=\frac{1}{Kc} =\frac{1}{1.72 \times 10^{3}  } =5.81 \times 10^{-4}

4 0
3 years ago
Which of the following statement is FALSE? a. Lowering the free energy of the transition state can increase a reaction rate. b.
ryzh [129]

Answer: Option (c) is the correct answer.

Explanation:

Activation energy or free energy of a transition state is defined as the  minimum amount of energy required to by reactant molecules to undergo a chemical reaction.

So, when activation energy is decreased then molecules with lesser amount of energy can also participate in the reaction. This leads to an increase in rate of reaction.  

Also, increase in temperature will help in increasing the rate of reaction.

Whereas at a given temperature, every molecule will have different energy because every molecule travels at different speed.

Hence, we can conclude that out of the given options false statement is that at a given temperature and time all molecules in a solution or a sample will have the same energy.

8 0
3 years ago
The Sun is one of many stars in the Milky Way galaxy. What does every other star in the Milky Way galaxy have in common with our
Amanda [17]
They are each a source of light like the sub
7 0
2 years ago
How many moles are equal to 1.20 x 1024 atoms of sulfur?
kakasveta [241]
1.20x1,024=1228.8 this is your answer.
hope that this helps.
8 0
3 years ago
Read 2 more answers
Other questions:
  • How many liters of 15 acid and 33 acid should be mixed to make 40 liters of 21 acid solution answer key?
    6·1 answer
  • A container of gas has a volume of 280 mL at a temperature of 22 Celsius if the pressure remains constant what is the volume 44
    8·1 answer
  • Concerning Boyle's Law, if you had a gas at a pressure of 101 kPa and decreased the volume of the container holding the gas to o
    7·1 answer
  • What reagent could be used to separate Br- from CH3 CO2 when added to an aqueous solution containing both.
    6·2 answers
  • True or False. Isotopes have different chemical properties. Explain why?
    6·1 answer
  • What is the final temperature, in degrees Celsius, of the gas in the bubble outside the volcano if the final volume of the bubbl
    14·1 answer
  • Hlo guys how are you all ​
    9·2 answers
  • What is the mass of 9.4 moles of B2(Cr207)3?
    13·1 answer
  • What is the longest day of the year?
    14·2 answers
  • Is phosphorus a pure substance or mixture
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!