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
Anon25 [30]
3 years ago
12

The standard gibbs free energy of formation of ___ is zero: 1. h2o(l) 2. na(s) 3. h2 (g)

Chemistry
1 answer:
Anuta_ua [19.1K]3 years ago
3 0

3. H2 (g) has a standard gibbs free energy of 0

You might be interested in
PLZ HELP Organisms on earth are ________ based life forms.<br> - oxygen<br> - hydrogen<br> - carbon
Bess [88]

Answer:

Carbon based life forms

5 0
3 years ago
Read 2 more answers
Surrounding
umka2103 [35]

Based on the data given in this question, the statement that shows a correct interpretation of the chemical reactions is as follows: reaction A was exothermic and reaction B was endothermic.

<h3>What are endothermic and exothermic reactions?</h3>

Endothermic reaction is a chemical reaction that absorbs heat energy from its surroundings while exothermic reaction is a reaction that releases energy in the form of heat.

Endothermic reactions leave their surroundings cooler while exothermic reactions leave their surroundings hotter.

According to this question, the initial and final temperatures of two reactions are given as follows:

  • Reaction A: 25.1°C and 30.2°C
  • Reaction B: 25.1°C and 20.0°C

From the above data, reaction A was exothermic because it increased the surrounding temperature and reaction B was endothermic because it reduced the surrounding's temperature.

Learn more about endothermic and exothermic at: brainly.com/question/23184814

#SPJ1

4 0
2 years ago
7 f Find the volume in dm3 and in mole of 0.505m of NaoH required to react with 40ml of 0.505m
Anna [14]

The volume of NaOH required is 0.08 dm³

To solve this question, we'll begin by writing the balanced equation for the reaction between H₂SO₄ and NaOH. This is illustrated below:

H₂SO₄ + 2NaOH —> Na₂SO₄ + 2H₂O

From the balanced equation above,

Mole ratio of the acid, H₂SO₄ (n_{A}) = 1

Mole ratio of the base, NaOH (n_{B}) = 2

Next, we shall determine the volume of NaOH required to react with H₂SO₄. This can be obtained as follow:

Molarity of the base, NaOH (M_{B}) = 0.505 M

Volume of the acid, H₂SO₄ (V_{A}) = 40 mL

Molarity of the acid, H₂SO₄ (M_{A}) = 0.505 M

<h3>Volume of the base, NaOH (V_{B}) =? </h3>

\frac{M_{A} * V_{A}}{M_{B} * V_{B}} = \frac{n_{A}}{n_{B}}\\\\\frac{0.505 * 40}{0.505 *V_{B}} = \frac{1}{2}\\\\\frac{20.2}{0.505 *V_{B}} = \frac{1}{2}

Cross multiply

0.505 * V_{B} = 20.2 * 2\\0.505 * V_{B} = 40.4

Divide both side by 0.505

V_{B} = \frac{40.4}{0.505}\\\\V_{B} = 80 mL

Finally, we shall convert 80 mL to dm³. This can be obtained as follow:

1000 mL = 1 dm^{3}\\\\Therefore,\\\\80 mL = \frac{80 mL * 1dm^{3}}{1000 mL}\\\\80 mL = 0.08dm^{3}

Therefore, the volume of NaOH required is 0.08 dm³

Learn more: brainly.com/question/19053582

3 0
2 years ago
Which option is an example of physical change?
Murljashka [212]

Answer:

They are all physical exept c

Explanation:

8 0
3 years ago
Read 2 more answers
Large-scale environmental catastrophes _______.
Ymorist [56]

Answer:

D. All of the Above

Explanation:

i just took the test on edgenuity

3 0
3 years ago
Other questions:
  • What type of reaction is required to bind two molecules of glycine together and release a molecule of water?​?
    15·1 answer
  • What are some interesting facts about Dmitri Mendeleev?
    9·1 answer
  • Compounds are neutral substances. true false
    10·1 answer
  • Suppose you have a container filled with iron and sand. You can separate the iron from the sand if you ____________ so this is a
    13·1 answer
  • Percent composition?: 85.05 g of Mg combines completely with 112.21 g of S.
    11·1 answer
  • The safety air bags in automobiles are inflated by nitrogen gas generated by rapid decomposition of sodium azide (NaN 3).
    13·1 answer
  • A cube has a mass of 100 grams and it’s density to be 1 g/cm cubed . The volume of the cube must be ?
    12·1 answer
  • Describe the chemical reaction based on the chemical equation below also whether the equation is balanced
    5·1 answer
  • The relationship between the volume and mass of an element is
    8·1 answer
  • In an experiment trying to dissolve sugar in water, a person boils water in a pot on the stove and then puts the water and the s
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!