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
Jlenok [28]
3 years ago
6

El agua de lluvia tiene un pH de 4,00. Calcule su concentración de ion hidrógeno en mol/litro. Explique por qué el agua es ácida

en lugar de neutra.
Chemistry
1 answer:
Kazeer [188]3 years ago
4 0
Hola amigo como estas? is the answer. i took the diagnostic
You might be interested in
g The reaction; 4 Ag(s) + O2(g) ----> 2 Ag2O(s), is exothermic. Which statement about the reaction is correct? (A) It is spon
melomori [17]

Answer:

The correct answer is B. It is spontaneous only at low temperatures.

Explanation:

In thermodynamics, the Gibbs free energy is a thermodynamic potential that can be used to calculate the maximum of reversible work that may be performed by a thermodynamic system at a constant temperature and pressure.

The spontaneity of a reaction is given by the equation:

ΔG = ΔH - TΔS

where:

ΔH: enthalpy variation

T: absolute temperature

ΔS: entropy variation

As the reaction is exothermic, ΔH<0

As the reaction order increases (the reagents are solid and gas and their product is solid), ΔS<0

Therefore, the reaction will be spontaneous when ΔG is negative.

ΔG = ΔH - TΔS

That is, the entropy term must be smaller than the enthalpy term.

Hence, the reaction will be spontaneous only at low temperatures.

4 0
3 years ago
11. What is the mass number
solniwko [45]

Answer:The mass numbr is 22

Explanation:

Mass number=number of protons+ number of neutrons....which is 10+12=22

4 0
3 years ago
Which statement correctly describes an endothermic chemical reaction?
Natasha2012 [34]
An endothermic chemical reactions products tend to have a higher potential energy than the reactants. Thus making the /\ H positive, not negative. 
7 0
3 years ago
The moon rises and sets every day, like the sun. Sarah noticed that the moon was sometimes visible at night and sometimes during
eimsori [14]

the answer is A.) the moon is orbiting the earth once per month

its the only logical answer, the others are either impossible or illogical

3 0
3 years ago
How many H atoms in 12H2O?
Ilya [14]

Answer:

24 atoms of H  or 1.4 x 10²⁵ hydrogen atoms

Explanation:

simple method

1 H₂O has  atoms of hydrogen and 1 atom of oxygen

while 12H₂O will have 24 atoms of hydrogen and 12 atom of oxygen

by Avagadros number

molar mass of water H₂0=18.01528 g/mol

1 mole of H₂0 have 2 moles of Hydrogen  

one mole of water= 6.02⋅10²³water molecules =1.2 x 10²⁴hydrogen atoms

12 mole of H₂O   =    1.2 x 10²⁴ x 12=  1.4 x 10²⁵ hydrogen atoms  

<u />

1.4 x 10²⁵ hydrogen atoms   in 12 moles of H₂O

<u />

3 0
3 years ago
Other questions:
  • Equal volumes of two equimolar solutions of reactants a and b are mixed, and the reaction a+b→c occurs. at the end of 1h, a is 9
    12·1 answer
  • Henri draws a wave that has a 4 cm distance between the midpoint and the trough. Geri draws a wave that has an 8 cm
    7·2 answers
  • The rate constant for a certain reaction is measured at two different temperatures: temperature Assuming the rate constant obeys
    13·1 answer
  • Convection is the up and down movement of what?
    14·1 answer
  • The light reactions of photosynthesis use _____ and produce _____. The light reactions of photosynthesis use _____ and produce _
    9·1 answer
  • What would be the resulting molarity of a solution made by dissolving 17.8 grams of LiF in enough water to make a 915-milliliter
    5·1 answer
  • I2 + Na2S2O3 → NaI + Na2S4O6 Balance the equation, if necessary.
    15·2 answers
  • 1.How many mL of 0.401 M HI are needed to dissolve 5.97 g of BaCO3?
    7·1 answer
  • Semester Exams,Which Statement Best compares the two passages. Screenshot below,Giving Brainliest....
    12·2 answers
  • Unit Test Unit Test Active 13 TIME REMAINING 01:31:26 Chemical A and Chemical B react in an exothermic reaction. What can be kno
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!