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
Nostrana [21]
3 years ago
15

Va rog ! urgent! E pt chimie ​

Chemistry
1 answer:
n200080 [17]3 years ago
5 0

Answer:

An element

It stays shiny

Explanation:

Pure Gold is an element.

An element is a distinct substance that cannot be split-up into simpler substances. Such substances consists of only one kind of atom.

There are over a hundred elements known to date.

As an element, Gold is classified as a metal due to its very unique set of properties.

One of the indicator that gold does not react with oxygen is that it stays shiny. It does not give rusty look when exposed to air.

Substances that combines with oxygen have a rusty look or change appearance when expose to air. For example, iron.

You might be interested in
Can swords shatter from cold temperatures
sp2606 [1]
Depends on how the sword is made, what materials are used and temperature used but yes they can shatter.

When molecules cool down they stop vibrating and moving as much and so they "shrink" and the metal of the sword becomes brittle. sometimes they shrink at different phases which cause tension in the sword if this tension is strong enough it can cause the metallic bonds to break causing the sword to shatter.

hope that helps 
6 0
3 years ago
PLEASE HELP 100 POINTS!!!!!! Read the short section below on the difference between everyday experience and science.
jarptica [38.1K]

Answer:

Scientist are born the most likely people to become scientist have naturally accelerated thought process from a young age

4 0
3 years ago
A reaction in which two light nuclei combine to form a heavier nucleus is termed
fenix001 [56]
Fusion............................................................................
4 0
4 years ago
A student determined that a 50mL sample of an unknown liquid had a density of 1 g/mL. A 100mL sample of the same liquid would ha
Lyrx [107]

Answer: False

Explanation: The density of the liquid will always be the same, no matter how much of the liquid you have.

For example, the density of the water in a pool is the same density as the water in a small cup.

4 0
3 years ago
What is the molarity of a solution made from 325.4 g of AlCl3 (MM 133.34 g/mol) to make 500.0 mL?
NISA [10]

Answer : The molarity of a solution is, 4.88 M

Explanation : Given,

Mass of AlCl_3 = 325.4 g

Volume of solution = 500.0 mL

Molar mass of AlCl_3 = 133.34 g/mole

Molarity : It is defined as the number of moles of solute present in one liter of volume of solution.

Formula used :

\text{Molarity}=\frac{\text{Mass of }AlCl_3\times 1000}{\text{Molar mass of }AlCl_3\times \text{Volume of solution (in mL)}}

Now put all the given values in this formula, we get:

\text{Molarity}=\frac{325.4g\times 1000}{133.34g/mole\times 500.0mL}=4.88mole/L=4.88M

Therefore, the molarity of a solution is, 4.88 M

6 0
3 years ago
Read 2 more answers
Other questions:
  • 2. You have 2 m3 of a mineral ore sample. It has a mass of 1 × 104 kg. Calculate the density of the ore sample and express your
    5·1 answer
  • The ray of light which travels towods a mirrors​
    9·1 answer
  • Explain different between subscripts and coefficients
    9·1 answer
  • Which of the following is NOT a part of Dalton's atomic theory?
    5·2 answers
  • What do scientists use to increase the surface area of a solute
    10·2 answers
  • What characteristics of estuaries make them good places for fish to lay their eggs?
    9·1 answer
  • Afarmer applies 1705 kg of a fertilizer that contains 10.0% nitrogen to his fields each year. Fifteen percent (15.0%) of the fer
    5·1 answer
  • Enter your answer in the provided box. To draw a Lewis structure, first add the number of outer (valence) electrons contributed
    10·1 answer
  • How many moles of Cs are contained in 3 moles of Cs3PO4?
    5·1 answer
  • When an ACID ionizes in water, the number of hydronium ions in the solution _____ and the value of the pH _?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!