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
xxMikexx [17]
3 years ago
12

Which of the following materials could have been found in the giant cloud that formed the

Chemistry
1 answer:
Natalija [7]3 years ago
4 0

Hydrogen and helium

These are the lightest atoms in the universe and are at the top-most of the periodic table.

Explanation:

These hydrogen and helium gas clouds when the collapse due to their own gravity, begin to fuses producing fusion energy that form stars. These light atoms become fused into heavier atoms in the center of these stars. When hydrogen and helium are fused, they form heavier atoms like those of carbon and oxygen. Supermassive stars, with intense gravity, will fuse even the heavier atoms like carbon into even heavier elements like Iron.

Learn More:

For more on fusion check out;

brainly.com/question/11498700

brainly.com/question/12201864

#LearnWithBrainly

You might be interested in
Write a chemical equation for nh4+(aq) showing how it is an acid or a base according to the arrhenius definition.
GuDViN [60]

An Arrhenius acid by definition dissociates in water to form H3O+ (or H+) ions while an arrhenius base dissociates in water to form OH- ions.

NH4+(aq) can be categorised as an arrhenius acid since it releases H3O+ ions in aqueous media

NH4+(aq) + H2O (aq) ↔ NH3 (aq) + H3O+(aq)

3 0
3 years ago
Read 2 more answers
Calcium nitrate tetrahydrate dissolves in cold water to the extent of 266 g per 100 cm3. What is the concentration of nitrate io
Soloha48 [4]

Answer : The correct option is, (b) 22.5 M

Explanation : Given,

Mass of calcium nitrate tetrahydrate = 266 g

Molar mass of calcium nitrate tetrahydrate  = 236.15 g/mole

Volume of solution = 100cm^3=100mL

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

Formula used :

Molarity=\frac{\text{Mass of calcium nitrate tetrahydrate }\times 1000}{\text{Molar mass of calcium nitrate tetrahydrate }\times \text{volume of solution in ml}}

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

Molarity=\frac{266g\times 1000}{236.15g/mole\times 100ml}=11.26mole/L=11.26M

As calcium nitrate tetrahydrate dissociate to give 1 mole of calcium ion, 2 moles of nitrate ion and 4 moles of water.

The concentration of nitrate ion = 2\times 11.26M=22.5M

Thus, the concentration of nitrate ion is, 22.5 M

4 0
3 years ago
The pH of a 0.25 M (aq) solution of hydrofluoric acid, HF, at 25C is 2.03. What is the value of Ka for HF? Pls show all mathemat
Snezhnost [94]

Answer:

Explanation:

b bhmj sjvkjwv

'

4 0
3 years ago
Answer my my science homework please
ludmilkaskok [199]
1. D

2. <span>83.5 million years ago - 66 million years ago

3. </span><span>It had armor and could rotate to keep its caudal bludgeon facing the enemy.

hope this helped :)
alisa202</span>
5 0
2 years ago
Who is Gregor Mendeſ, and what did he<br> discover about traits?
shtirl [24]

Answer:

Gregor Mendel, through his work on pea plants, discovered the fundamental laws of inheritance. He deduced that genes come in pairs and are inherited as distinct units, one from each parent. Mendel tracked the segregation of parental genes and their appearance in the offspring as dominant or recessive traits.

Through his careful breeding of garden peas, Gregor Mendel discovered the basic principles of heredity and laid the mathematical foundation of the science of genetics.

Explanation:

8 0
3 years ago
Other questions:
  • A block of steel occupies a volume of 15 mL and a mass of 120.75g. What is its density? ​
    10·1 answer
  • What are the similarities between molecules and elements
    9·1 answer
  • If there are 3 moles of hydrogen, 6 moles of oxygen, and 9 moles of helium in a 10 L vessel at 27°C, the total pressure of the g
    10·1 answer
  • What type of reaction does this illustration represent?
    8·1 answer
  • Which has the strongest intermolecular forces​
    13·2 answers
  • Carbon dioxide and water vapor are variable gases because
    14·1 answer
  • At Appliance City you sold a refrigerator to a customer for $369.00. Appliance City advertises that if a customer finds the same
    6·1 answer
  • The atomic mass of an element is measured relative to the mass of *
    14·2 answers
  • I think this is Chemistry but it might be physics
    5·1 answer
  • A woman has a body mass of 53 kg. What is her mass in grams?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!