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
disa [49]
3 years ago
13

What are the only elements that exist in nature as uncombined

Chemistry
1 answer:
mario62 [17]3 years ago
5 0

Answer:

The noble gases (Argon, Neon, Xenon, Helium, Krypton, Radon)

You might be interested in
Which describes any compound that has at least one element from group 17?
Contact [7]
The answer is HALIDE.
6 0
3 years ago
If two elements are in the same column what do they have in common
nikdorinn [45]
They have the same number of electrons in their outer shells. Elements in the same group often share similar chemical properties because the outer electrons generally determine a lot of their properties
3 0
3 years ago
In a percentage composition investigation a compound was decomposed into its elements: 20.0 g of calcium, 6.0 g of carbon, and 2
inysia [295]

The percentage composition of this compound : 40%Ca, 12%C and 48%O

<h3>Further explanation</h3>

Given

20.0 g of calcium,

6.0 g of carbon,

and 24.0 g of oxygen.

Required

The percentage composition

Solution

Total mass of compound :

=mass calcium + mass carbon + mass oxygen

=20 g + 6 g + 24 g

=50 g

Percentage composition :

  • Ca-calcium

\tt \dfrac{20}{50}\times 100\%=40\%

  • C-carbon

\tt \dfrac{6}{50}\times 100\%=12\%

  • O-oxygen

\tt \dfrac{24}{50}\times 100\%=48\%

3 0
3 years ago
An object can become electrically charged if it gains or loses which particles?
Sunny_sXe [5.5K]

Answer:

if it gains or loses neutrons

6 0
3 years ago
Read 2 more answers
A vehicle travels 60. km north and then 40. km south. What is its total displacements?
Rama09 [41]

Answer:

20 km north that's the answer hope it helped

6 0
3 years ago
Other questions:
  • Needed help plzzz on this chemistry homework.
    13·1 answer
  • If sea water has a density of 1.025 kg/L and 3.5% of the mass in sea water is salt, determine the mass of salt dissolved in 500
    7·1 answer
  • Which feature of four different marine fossils makes the fossil organism most similar to the present-day organism with four limb
    15·1 answer
  • Magnesium and nitrogen react in a combination reaction to produce magnesium nitride. 3 mg + n2 ? mg3n2. in a particular experime
    5·1 answer
  • Which equation demonstrates that nuclear fusion forms elements that are heavier than helium?
    12·2 answers
  • Which type of volcano formation would typically be found under a convergent boundary?
    8·2 answers
  • How many moles of KMnO, are in 66.38 g of KMnO?
    6·1 answer
  • Why does table salt dissolve more rapidly than rock salt
    14·2 answers
  • A sample of brass is put into a calorimeter (see sketch at right) that contains of water. The brass sample starts off at and the
    11·1 answer
  • Metals,nonmetals, metalloids
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!