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
skad [1K]
3 years ago
15

According to observations, the overall chemical composition of our solar system and other similar star systems is approximately

(a) 98% hydrogen and helium, 2% all other elements combined; (b) 98% ice, 2% metal and rock; (c) 100% hydrogen and helium.
Chemistry
1 answer:
jonny [76]3 years ago
3 0

Answer:A

Explanation:

The solar system consist of the sun, the planets, stars and other objects. The chemical composition of the Sun consist mainly of Hydrogen and helium.

The sun is the largest object in the Solar system, it comprises nearly all the matter in the Solar System, Also the largest planet after the Sun are Jupiter and Saturn are giant planets forming almost the remaining matter of the solar system.

Like the Sun, the mass of Jupiter and Saturn are composed of roughly 98% hydrogen and helium with 2% of all the other elements combined.

You might be interested in
What is the molecular geometry if you have a double bond, a single bond and 1 lone pair around the central atom?
astra-53 [7]

Answer:

4 pairs are needed for the bonds, leaving 1 lone pair. Each double bond uses 2 bond pairs and can be thought of as a single unit. There are 2 double bond units and 1 lone pair, which will try to get as far apart as possible - taking up a trigonal planar arrangement.

5 0
2 years ago
a student proposes the following lewis structure for the azide ion. assign a formal charge to each atom in the student's lewis s
AlexFokin [52]

Lewis structures are diagrams that illustrate the bonding between atoms in a molecule as well as any lone pairs of electrons that may exist. They are also known as Lewis dot formulae, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDs). Lewis structures are diagrams that illustrate the bonding between atoms in a molecule as well as any lone pairs of electrons that may exist. They are also known as Lewis dot formulae, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDs). A Lewis structure can represent any covalently attached molecule as well as coordination compounds. who proposed it in his 1916 article The Atom and the Molecule.

To learn more about lewis's structure the given link:

brainly.com/question/20300458

#SPJ9

7 0
2 years ago
When you mix the primary colors of light, you produce what color?
gayaneshka [121]
If you mix all of the primary colors, you get White light
3 0
3 years ago
Read 2 more answers
Why are the coefficients before a chemical symbol important?​F. ​ They show the number of elements in each molecule.​G. ​ They i
Valentin [98]

Answer:They indicate the number of molecules of each substance

Explanation:

When we write chemical reaction equations, we usually put a number before the symbol of each reactant.

These coefficient shows the number of molecules of that specie that is involved in the balanced reaction equation for the reaction.

These coefficients are important because they are used in carrying out stoichiometric calculations.

7 0
3 years ago
What is produce in all chemical reactions?
bazaltina [42]

Answer: Reactants and Products

Explanation:

The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the products.

6 0
4 years ago
Other questions:
  • How many molecules are in 4.5 moles of CO2?
    12·1 answer
  • A piece of lead takes up a space of 6.92 mL and has a density of 11.4g/mL. Calculate the mass
    6·2 answers
  • What is the product of the unbalanced combustion reaction below?
    11·1 answer
  • A certain atom has a mass of 16 and an atomic number of 7. What element is this ?
    14·1 answer
  • The equation below is balanced. H2(g) + Cl2(g) → 2 HCl(g)
    9·1 answer
  • Which area of science is considered the central science?
    9·1 answer
  • ___SeCl6+ ____ O2——&gt; ___ seO2 +___Cl2<br><br> If you can do this I need help with more
    6·1 answer
  • Can someone tell me if these are right? I am supposed to be decoding this for my escape room but it seems to be wrong.
    13·1 answer
  • For which elements are outer electrons and valence electrons the same?
    9·1 answer
  • Jupiter revolves around the sun in a predictable pattern because
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!