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
sashaice [31]
3 years ago
12

Which substance can be broken down by chemical means?

Chemistry
2 answers:
zepelin [54]3 years ago
4 0
Methanol is the substance that can be broken down by chemical means, the remaining ones are elements.
bearhunter [10]3 years ago
4 0
4. Methanol

Methanol is a compoud. The rest of the choices are elements. Elements can't be broken down, and compounds can.
You might be interested in
Hey armies.. how are you doing​
spayn [35]

Answer:

Nice and you

Explanation:

Please Mark me brainliest

3 0
2 years ago
Read 2 more answers
DATA:
WITCHER [35]

Answer:

Explanation:

trial 1

5 0
3 years ago
Select the pair that consists of a base and its conjugate acid in that order. CO32−/CO22−
lana [24]

Answer: The pair that consists of a base and its conjugate acid in that order.NH_3/NH_4^+

Explanation:

According to the Bronsted-Lowry conjugate acid-base theory, an acid is defined as a substance which looses donates protons and thus forming conjugate base and a base is defined as a substance which accepts protons and thus forming conjugate acid.

H_3PO_4\rightarrow H_PO_4{2^-}+2H^+

H_2CO_3\rightarrow HCO_3^-+H^+

NH_3+H^+\rightarrow NH_4^+

HCO_3^-\rightarrow CO_3^{2-}+H^+

NH_3  is gaining a proton, thus it is considered as a brønsted-lowry base and after gaining a proton, it formsNH_4^+  which is a conjugate acid.

3 0
3 years ago
As shown in table 15.2, kp for the equilibrium n21g2 + 3 h21g2 δ 2 nh31g2 is 4.51 * 10-5 at 450 °c. for each of the mixtures lis
Setler79 [48]
Our reaction balanced equation at equilibrium N2(g) + 3 H2(g) ↔ 2 NH3(g)
and we have the Kp value at equilibrium = 4.51 X 10^-5
A) 98 atm NH3, 45 atm N2, 55 atm H2

when Kp = [P(NH3)]^2 / [P(N2)] * [P(H2)]^3
                = 98^2 / (45 * 55^3) = 1.28 x 10^-3
by comparing the Kp by the Kp at equilibrium(the given value) So,
Kp > Kp equ So the mixture is not equilibrium,
 it will shift leftward (to decrease its value) towards the reactants to achieve equilibrium.
B) 57 atm NH3, 143 atm N2, no H2
∴ Kp = [P(NH3)]^2 / [P(N2)]
         = 57^2 / 143 = 22.7
∴Kp> Kp equ (the given value) 
∴it will shift leftward (to decrease its value) towards reactants to achieve equilibrium.

c) 13 atm NH3, 27 atm N2, 82 atm H2
∴Kp = [P(NH3)]^2 / [P(N2)] * [P(H2)]^3
       =  13^2 / (27* 82^3) = 1.14 X 10^-5
∴ Kp< Kp equ (the given value)
∴it will shift rightward (to increase its value) towards porducts to achieve equilibrium.


3 0
3 years ago
Why is the puddle underneath a melting ice cube as cold as the ice cube itself
neonofarm [45]
It's not, if it were it would be ice. The water is a bit warmer.
5 0
3 years ago
Read 2 more answers
Other questions:
  • ReAcTanTS and PrOducTS
    7·1 answer
  • Natural remedies are usually more effective and safer because they have thoroughly tested .
    13·1 answer
  • What is the main chemical compound cells use for energy?
    12·1 answer
  • How many molecules of N2 are in a 400.0 mL container at 780 mm Hg and 135°C? Avogadro’s number = 6.022 x 1023A) 7.01 × 1021 mole
    15·2 answers
  • What does it mean for an object to be dense?
    7·1 answer
  • Which of the following statements are true?
    9·1 answer
  • I in the blanks.<br>The solid substance left on the filter paper is called​
    15·1 answer
  • You titrate 41.27 mL of 0.108 M Ca(OH)2 into 25.00 mL of citric acid (C6H307) (triprotic). What is the balanced equation and the
    6·1 answer
  • In an electron dot diagram of fluorine , how many dots should be drawn around the elements symbol
    12·1 answer
  • Who is good at chemistry?! HMU asap!!!​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!