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
pychu [463]
4 years ago
10

Which statement is always true about a reversible chemical reaction?

Chemistry
1 answer:
Alecsey [184]4 years ago
7 0
<h2>Answer:</h2>

Option (B):

The products can form reactants, and the reactants can form products.

<h3>Explanation:</h3><h3>Reversible reaction</h3>

A reversible reaction is a reaction where the reactants form products, which react together to give the reactants back.

aA + bB ⇄ cC + dD

A and B can react to form C and D or, in the reverse reaction, C and D can react to form A and B.

Other options are wrong because off:

(A) Concentration changes with time equilibrium concentration and higher product concentration is also possible.

(C) They may be constant.

(D) Concentration changes with time equilibrium concentration and higher reactant concentration is also possible.

You might be interested in
Calcium hydride reacts with water to form calcium hydroxide (aqueous) and hydrogen gas. Write a balanced chemical equation for t
DanielleElmas [232]

Answer:

CaH_2(s) +2H_2O(l) \rightarrow Ca(OH)_2 (aq) + 2H_2 (g)

Explanation:

CaH_2(s) +H_2O(l) \rightarrow Ca(OH)_2 (aq) + H_2 (g)

In this reaction, calcium is balanced in either side. No. of atoms of 'H' and 'O' are not balanced. To balance O atoms, multiply H_2O by 2. Now the reaction becomes:

CaH_2(s) +2H_2O(l) \rightarrow Ca(OH)_2 (aq) + H_2 (g)

Now, to balance H atoms, multiply H2 by 2.

CaH_2(s) +2H_2O(l) \rightarrow Ca(OH)_2 (aq) + 2H_2 (g)

Now, each element is balanced.

8 0
3 years ago
What is electron Configuration of Xenon​
Gre4nikov [31]
4d¹⁰ 5s² 5p⁶ is the electron configuration
4 0
3 years ago
An atom of which of these elements most likely forms an anion? A. AI B. Br C. Ca D. Mg
Papessa [141]
The answer is B. A good way determine this is how far right the element is on the periodic table. The further right the element is, the more electronegative it is meaning it is more willing to accept an electron. This can be explained using the valence electrons and how many need to be added or removed to complete the octet. The further right you are, the easier it is for the element to just gain a few electrons instead of loose a bunch. Noble gases are the exception to this since they don't normally react though.
4 0
3 years ago
Read 2 more answers
Just need help with these 3
SVEN [57.7K]
B
A
A
I’m not sure if the second one is correct but Ik it a or b but I think it’s a
5 0
3 years ago
1.Using the absorbance of the spinach extract and the equation of the trendline, determine the concentration of the extract solu
lys-0071 [83]

Answer:

Explanation:

From the given information:

We are to make use of the spinach absorbance extract which is the corrected absorbance  (y) = 0.306

And also the trendline equation:

y = 1609x + 0.0055

where,

x = absorbance of the spinach extract.

∴

0.306 = 1609x + 0.0055

collecting the like terms

0.306 - 0.0055 = 1609x

0.3005  = 1609x

x = 0.3005/1609

x = 1.8676 × 10⁻⁴

x ≅ 0.0002 M

No. of grams for the chlorophyll can be computed as follows:

recall that:

molar mass of chlorophyll = 893.5 g/mol

the volume = 25ml = (25/1000) L = 0.025 L

∴

In spinach solution, the no. of grams for the chlorophyll:

= (0.0002) mol/L × (893.5 g/mol) × (0.025) L

= 0.0044675 g

≅ 0.0045 g

In the spinach, the concentration of chlorophyll = no of grams of chlorophyll/ mass of the spinach

= 4.5 mg/0.1876 g

= 23.987 mg/g

≅ 24 mg/g

4 0
3 years ago
Other questions:
  • Mass in mg<br> salt<br> sugar<br> chalk<br> sand<br> water
    8·1 answer
  • Using an example of an Acid or a Base give the Arrhenius definition for acids and bases.
    12·1 answer
  • Zinc Mass If a 1.85 g mass of zinc produces 475 mL of gas and your balloon weighs 0.580 g and the room temperature is 21.5°C. Ca
    9·1 answer
  • A car traveling north with a velocity of 30 m/sec slows down to a velocity of 10 m/sec
    8·1 answer
  • How do the properties of the elements change as you move across a period on a periodic table from left to right?
    9·1 answer
  • How many bonds dose nitrogen have
    8·1 answer
  • POINTS AND BRAINIEST ANSWER!!!!
    8·2 answers
  • Can anyone please help me with this????<br>Please help me.
    5·2 answers
  • A new solution you came up with that will help with water pollution
    5·1 answer
  • Liquid water can be separated into hydrogen gas and oxygen gas through electrolysis. The hydrogen and oxygen gases, H2 and O2, p
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!