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
Why do solids maintain a specific shape and volume?
s344n2d4d5 [400]

Answer:

Solids can hold their shape because their molecules are tightly packed together. ... Atoms and molecules in liquids and gases are bouncing and floating around, free to move where they want. The molecules in a solid are stuck in a specific structure or arrangement of atoms.

<em>Hope it helps...</em>

5 0
3 years ago
During decomposition of water,10g of oxygen gas was formed.How much hydrogen gas was formed
statuscvo [17]

Answer:

https://www.quora.com/The-following-chemical-reaction-shows-the-decomposition-of-water-to-form-hydrogen-gas-and-oxygen-gas-2H2O-I-produces-2H2-g-O2-g-if-10-0-grams-of-water-reacted-and-you-found-1-11-grams-of-H2-formed-how-many-of-O2

Explanation: i hope ths helps you

8 0
3 years ago
2. What do acidic solutions have high concentrations of? ​
Xelga [282]
Hydrogen ions
mark me brainlist
7 0
2 years ago
Read 2 more answers
If the mass of the object below is 28g, what is the density of the object below. Units are in cm below. Please round your answer
Murljashka [212]

Answer:

d = 0.93 g/cm³

Explanation:

Given data:

Mass of object = 28 g

Volume of object = 3cm×2cm×5cm

density of object = ?

Solution:

Volume of object = 3cm × 2cm ×5cm

Volume of object = 30 cm³

Density of object:

d = m/v

by putting values,

d = 28 g/ 30 cm³

d = 0.93 g/cm³

3 0
3 years ago
How many moles of nitroge are there in 50.0 g of nitrogen?
chubhunter [2.5K]

1.785714286 moles

The number of moles (n) for nitrogen is: [ n=50.0÷28.0 ] = 1.785714286 moles.

8 0
3 years ago
Other questions:
  • What property of water allows it to stick to a dry surface, such as a wooden countertop?
    7·1 answer
  • What is the mass of 203 ml of a liquid that has a density of 0.680 g/ml?
    13·1 answer
  • consider an exceptionally weak acid, HA, with Ka= 1 x 10-20. you make 0.1M solution of the salt NA. what is the pH.
    14·1 answer
  • How many miles of C atoms are present in a sample of 3.85x1024 C atoms?
    6·1 answer
  • The density of a certain type of plastic is 0.81 g/cm3. If a sheet of this plastic is 10.0 m long, 1.0 m wide, and 1 cm thick, w
    14·1 answer
  • HALPPPPPP MEH YALL<br> THANKSSSSSS
    6·2 answers
  • PLEASE HELP ME! I really need help coming up with a three course meal idea, I need this for chemistry, can someone help me pleas
    12·1 answer
  • Calculate the pH if the [OH-] concentration is 5.9x10-1 M.
    12·1 answer
  • Could someone help me with this. i am very confused.
    13·1 answer
  • ........PLEASE HELP........
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!