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
FromTheMoon [43]
2 years ago
5

A chunk of zinc is added to a solution of gold (III) nitrate to extract the gold. The reaction forms,

Chemistry
2 answers:
alina1380 [7]2 years ago
7 0

Answer:

it forms :

1. Gold ( Au )

2. Zinc nitrate ( Zn(NO3)2 )

Explanation:

When a chunk of zinc is added to a solution of gold (III) nitrate to extract the gold. The reaction forms Gold and Zinc nitrate .

it's a single displacement reaction,

here's the balanced equation for above reaction :

3 Zn + 2 Au(NO3)3 =》3 Zn(NO3)2 + 2 Au

Veseljchak [2.6K]2 years ago
4 0

Explanation:

Gold (AU)................

You might be interested in
The first-order rate constant for the decomposition of N2O5:
kifflom [539]

Answer:

0.0055 mol of N2O5 will remay after 7 min.

Explanation:

The reaction follows a first-order.

Let the concentration of N2O5 after 7 min be y

Rate = Ky = change in concentration of N2O5/time

K is rate constant = 6.82×10^-3 s^-1

Initial concentration of N2O5 = number of moles/volume = 2.1×10^-2/1.8 = 0.0117 M

Change in concentration = 0.0117 - y

Time = 7 min = 7×60 = 420 s

6.82×10^-3y = 0.0117 - y/420

0.0117 - y = 420×6.82×10^-3y

0.0117 - y = 2.8644y

0.0117 = 2.8644y + y

0.0117 = 3.8644y

y = 0.0117/3.8644 = 0.00303 M

Number of moles of N2O5 left = y × volume = 0.00303 × 1.8 = 0.0055 mol (to 2 significant digits)

5 0
3 years ago
ICMP scanning involves in checking for the live systems, which can be done by sending the following ping scan request to a host.
abruzzese [7]

Answer:

ICMP Echo Request

Explanation:

ICMP Echo Request is a form of probe or message sent by a user to a destination system.

5 0
3 years ago
When a substance undergoes a chemical change, the product exhibits different physical properties than the starting material. Des
elena55 [62]

Answer:

I) Change in solubility

II) Change in boiling point

III) Change in colour

Explanation:

A chemical change involves formation of new products and is not reversible.

So, once two liquid solutions are mixed and a chemical change takes place, the new product will have the following:

- a new solubility rate, i.e it will dissolve at a rate different from the two liquid solution

- a new boiling point i.e it takes a new point at which its molecules liberate to yield vapour

- a new colour might be detected, as the individual solution each has its own colour

6 0
3 years ago
A 1.20-L container contains 1.10 g of an unknown gas at STP. What is the molecular weight of the unknown gas?
SOVA2 [1]

Answer:

M = 20.5 g/mol

Explanation:

Given data:

Volume of gas = 1.20 L

Mass of gas = 1.10 g

Temperature and pressure = standard

Solution:

First of all we will calculate the density.

Formula:

d = mass/ volume

d = 1.10 g/ 1.20 L

d = 0.92 g/L

Now we will calculate the molar  mass.

d = PM/RT

0.92 g/L = 1 atm × M / 0.0821 atm.L/mol.K ×273.15 K

M =  0.92 g/L × 0.0821 atm.L/mol.K ×273.15 K /  1 atm

M = 20.5 g/mol

8 0
3 years ago
What are the 4 forms of precipitation
yKpoI14uk [10]
If Im not wrong i think its rain,snow,hail,and sleet...hope this helps you

5 0
3 years ago
Read 2 more answers
Other questions:
  • Land forms on earth change everyday. Some are worn away and even destroyed. Some are built up and even formed anew. Processes th
    5·2 answers
  • What is the balanced chemical equation of CO2 + H2O = C2H5OH + O2?​
    12·1 answer
  • Study the diagram, which represents the general equation for photosynthesis.
    15·1 answer
  • Which substances are released during cellular respiration?
    10·1 answer
  • A beaker contains a sample of water with a mass of 325 grams. The water in the beaker
    13·1 answer
  • Zinc-64 undergoes beta decay as shown:
    12·1 answer
  • How can a chemical reaction be sped up? Select from the drop-down menu to correctly complete the statement. Add a Choose... that
    8·1 answer
  • Atoms of which of the following elements have the smallest atomic radius?
    8·1 answer
  • 2
    13·1 answer
  • What are the symbols, atomic mass and abundance in nature of the isotope boron-11
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!