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
Leokris [45]
3 years ago
8

you are working in an office of a precious metal buyer and miner bring a nugget of metal and he claims its cold you suspect that

the metal is a form of fool's gold called marcasite which is composed of iron and sulphur and in the back of your office you have a chunk of puregold what simple experiment could you perform decide whether or not the Miners nugget is gold​
Chemistry
1 answer:
Novay_Z [31]3 years ago
7 0

Explanation:

The definition of Loam is soil composed mostly of sand, silt, and a smaller amount of clay. By weight, its mineral composition is about 40–40–20% concentration of sand–silt–clay, respectively..

\mathbb\red{THANKS}

You might be interested in
Radar detectors use radio waves to measure the speed of moving
bagirrra123 [75]

Answer:

1.7x10^8 Hz

Explanation:

Frequency could be explained as the number of occurrences of a repeating event at a time

Given:

wavelength = 1.8 meters

The frequency f of the waves can be calculated using f = c / λ

Where c (m/s) is the speed of the wave

λ (m) is the wavelength

Speed c= 3*10^8 m/s

Frequency f= 3*10^8 /1.8

Frequency= 1.7x10^8 Hz

Therefore,the frequency of waves from a radar detector is 1.7x10^8 Hz

6 0
3 years ago
If an atom has three shell and number of valence electrons are two. Is this element metal
cluponka [151]

Answer:

Metal

Element: Calcium

Valency: 2

Explanation:

To find the element, let's use the periodic table. (Look below)

We already went past 3 shells, just need the 2 electrons after it.

Just skip to the 4th row and count 2 to the right

We end up at Calcium.

Calcium is a metal and we're also on the alkaline earth metals column.

Calcium will need to lose 2 electrons to reach stability, so the valency is 2.

3 0
3 years ago
Is Coffee an Acid or a Base​
kvasek [131]
Coffee is acidic so the first one would be correct
4 0
3 years ago
ANSWER FAST PLZ 25 POINTS!!!!!!!!!!!!!!!
sp2606 [1]

Answer:

The answer is A, if im not mistaken

8 0
3 years ago
Which is a thermosetting plastic?<br><br>Polythene<br>PVC<br>Melamine<br>Nylon​
serg [7]
Melamine should be the right answer, i hope this helps.
5 0
3 years ago
Other questions:
  • Hydrogen produced from a hydrolysis reaction was collected over water and the following data was compiled.
    12·2 answers
  • If I wrote 7h2o, how many hydrogen atoms do I have now? How many oxygen atoms?
    13·2 answers
  • Lionel has a hot plate, a thermometer, a container of water, a spoon, and a small hammer. Using these tools,
    7·2 answers
  • If an object is thrown 60 m into the air and it takes the object 6 s to get there, what's the average speed of the object?
    13·2 answers
  • What are the units of molality? A. mol/kg B. g/mol C. mol/L D. kg/mol
    10·2 answers
  • A cylinder measuring 9.7 cm wide and 12. cm high is filled with gas. The piston is pushed down with a steady force measured to b
    11·1 answer
  • Microwave ovens emit microwave energy with a wavelength of 12.7 cm. what is the energy of exactly one photon of this microwave r
    13·1 answer
  • Convert 4.56 cm to mm
    9·1 answer
  • Why cant chemical changes be reversed
    13·1 answer
  • A student makes two mixtures, both made of the same substances. What must be true of the two mixtures? A Both mixtures have the
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!