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
adoni [48]
2 years ago
13

Coffee is a solution of organic substances in water

Chemistry
1 answer:
Eduardwww [97]2 years ago
8 0

Answer:

yes it is

Explanation:

You might be interested in
Gold has always been a highly prized metal, widely used from the beginning of history as a store of value. It doesn\'t rust like
Alecsey [184]

Answer:

1Au(s) + 3HNO₃(aq) + 4HCl(aq) → 1HAuCl₄(aq) + 3NO₂(g) + 3H₂O(l)

The function of HCl is oxidize the gold.

Explanation:

It is possible to balance the reaction seeing each compound as a variable and take an equation for each atom, thus:

Au(s) + HNO₃(aq) + HCl(aq) → HAuCl₄(aq) + NO₂(g) + H₂O(l)

a       +       b         +      c      =        d            +    e       +    f

Au: a = d <em>(1)</em>

H: b + c = d + 2f <em>(2)</em>

N: b = e <em>(3)</em>

O: 3b = 2e + f <em>(4)</em>

Cl = c = 4d <em>(5)</em>

Assuming <em><u>a = 1</u></em>:

<em><u>1 = d</u></em> <em>(1)</em>

<u><em>c = 4</em></u> <em>(5)</em>

b + 3 = 2f <em>(2)</em>

3b = 2e + f <em>(4)</em>

As b = e:

b = f <em>(4)</em>

<em><u>f = 3</u></em>; <em><u>b = 3</u></em>; <em><u>e = 3</u></em>

Thus, balanced reaction is:

1Au(s) + 3HNO₃(aq) + 4HCl(aq) → 1HAuCl₄(aq) + 3NO₂(g) + 3H₂O(l)

<em>The function of HCl is oxidize the gold</em> that before reaction is Au⁰ and afte ris Au⁺³

I hope it helps!

4 0
2 years ago
Elements are arranged in the periodic table based on various patterns. For example, elements found in the rows near the top
Leni [432]
The rows are called periods
3 0
3 years ago
Read 2 more answers
Methane, CH4, burns in oxygen gas to form water and carbon dioxide.
Lemur [1.5K]

ch4  + 202  2h20   + co2

CH4 + 2O2 --> 2H2O +CO2 

6 0
3 years ago
What are the five major areas of chemistry
Alexxandr [17]
Physical chemistry.

organic chemistry.

inorganic chemistry.

analytical chemistry.

biochemistry.

6 0
3 years ago
After 42 days, a 2.0 g sample of phosphorous-32 contains only 0.25 g of the isotope. What is the half-life of phosphorus-32?
tester [92]

Answer:

Half life of phosphorous-32 = 14 days

Explanation:

Given data:

Total mass of phosphorous-32 = 2.0 g

After 42 days mass left = 0.25 g

Half life of phosphorous-32 = ?

Solution:

First of all we will calculate the number of half lives passed.

At time zero = 2.0 g

At first half life = 2.0 g/2 = 1.0 g

At 2nd half life = 1.0 g/2 = 0.5 g

At 3rd half life = 0.5 g/2 = 0.25 g

Half life:

Half life = T elapsed / half lives

Half life = 42 days/ 3

Half life = 14 days

4 0
2 years ago
Other questions:
  • 7. How many simple sugars are in each of the following?
    11·2 answers
  • An aqueous solution at 25 °C has a pOH of 12.42. Calculate the pH. Round your answer to 2 decimal places
    12·2 answers
  • PLEASE HELP
    11·1 answer
  • According to the law of conservation of mass, the total mass of the reactants is
    12·1 answer
  • Which of the following is necessary for photosynthesis?
    15·1 answer
  • PLEASE HELP WITH MY CHEM ASSIGNMENT!!!
    6·1 answer
  • 100 Points.
    8·1 answer
  • Bonds. Carbon dioxide has a. Ionic b. Covalent c. Nonpolar covalent d. Polar covalent​
    8·1 answer
  • We can also perform a similar calculation for the mass defect and binding energy for nuclear reactions using the masses of the a
    7·1 answer
  • Which diagram best illustrates the difference between distance and<br> displacement?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!