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
vlada-n [284]
3 years ago
14

Which property can be used to tell gold and pyrite apart?

Chemistry
1 answer:
zubka84 [21]3 years ago
6 0

Answer:

D. Malleability

Explanation:

Gold is made up of the element Au and it is a metal.

Pyrite is iron sulfide and it is a non-metal.

  • They have very similar appearance to such an extent that pyrite is widely called the fool's gold.
  • To distinguish between the two, we simply explore their metallic properties.
  • Gold is malleable. Pyrite is not. It will crumble under pressure.
You might be interested in
How many molecules of NaOH are in 23<br> moles of NaOH
Ann [662]
120 grams of NaOH means 3 Moles of NaOH because 40 grams (Molecular Weight in grams) is one mole of NaOH.

Each mole of any substance contain Avogadro’s number of molecules ie., 6.022 x (10 to the power 23).

Hence 3 Moles of NaOH contain 3 times of Avogadro’s number of molecules ie., 3 x 6.022 x (10 to the power 23)
3 0
3 years ago
Discuss whether two products are required for a chemical reaction. (NEED HELP ASAP)
Alex787 [66]

Answer:

Yes.

Explanation:

"These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products."

There is a beginning product, and a reactant is needed in order for something to happen.

For example, according to Newton, something cannot happen until an exterior force comes and stops/pushes it.

Sorry if this is incorrect, I am just 4th grade :(

6 0
2 years ago
Which law is associated with inertia
Doss [256]
Newton's first law is the answer.
5 0
3 years ago
If Log 4 (x) = 12, then log 2 (x / 4) is equal to
Alexus [3.1K]

The value of log₂(x/4) is 22. Using the properties of the logarithm, the required value is calculated.

<h3>What are the required properties of the logarithm?</h3>

The required logarithm properties are

logₐx = n ⇒ aⁿ = x; and logₐ(xⁿ) = n logₐ(x);

Where a is the base of the logarithm.

<h3>Calculation:</h3>

It is given that,

log₄(x) = 12;

On applying the property logₐx = n ⇒ aⁿ = x; here a = 4;

So,

log₄(x) = 12 ⇒ 4¹² = x

⇒ x = (2²)¹² = 2²⁴

Then, calculating log₂(x/4):

log₂(x/4) = log₂(2²⁴/4)

              = log₂(2²⁴/2²)

              = log₂(2²⁴ ⁻ ²)

              = log₂(2²²)

On applying the property logₐ(xⁿ) = n logₐ(x);

log₂(x/4) = 22 log₂2

We know that logₐa = 1;

So,

log₂(x/4) = 22(1)

∴ log₂(x/4) = 22.

Learn more about the properties of logarithm here:

brainly.com/question/12049968

#SPJ9

8 0
1 year ago
240 g of water (specific heat = 4.186 J/g°C, initial temperature = 20°C) is mixed with an
ivolga24 [154]
The answer for this would be 69.6
3 0
2 years ago
Other questions:
  • How is radar ?????????
    8·1 answer
  • A certain element forms an ion with 54 electrons and a charge of +2. identify the element.
    10·1 answer
  • The substance floats or sinks in another because of its relative
    15·1 answer
  • What is an example of a base? carbonic acid sodium carbonate sodium hydroxide hydrochloric acid
    7·1 answer
  • What is 0.0000000000000167 in scientific notation?
    12·1 answer
  • 1 Mr. Chavez paid $14.32 total for 8 protein bars.
    14·1 answer
  • What type of chemical hazard results from incomplete combustion of petroleum-based chemicals and other organic substances?
    5·1 answer
  • When a compound is oxidized it ______ one or more electrons; whereas when a compound is reduced it _____ one or more electrons?
    15·2 answers
  • A sample of O2 gas is put into a bottle at STP. If the volume of the bottle is 0.52 L, how many moles of O2 will the bottle cont
    13·1 answer
  • What will be the ph of a buffer solution containing an acid of pka 7. 5, with an acid concentration exactly one fourth of that o
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!