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
meriva
4 years ago
7

Without the sun, life on earth would not exist. There would be no warmth, no plants, no animals, no night and day.

Chemistry
2 answers:
zvonat [6]4 years ago
7 0

Answer: Option (A) is the correct answer.

Explanation:

The process in which two or more small nuclei combine together to result in the formation of a larger nuclei is known as fusion.

In Sun, four hydrogen nuclei combine together to result in the formation of helium atom. This combining of small hydrogen nuclei to form a large helium nuclei represents fusion process occurring inside the Sun.

Thus, we can conclude that to power itself, the sun is constantly generating a nuclear reaction in its core, in which hydrogen nuclei are combined to form helium. This process is known as fusion.

spin [16.1K]4 years ago
3 0

Answer: -

Without the sun, life on earth would not exist. There would be no warmth, no plants, no animals, no night and day.

To power itself, the sun is constantly generating a nuclear reaction in its core, in which hydrogen nuclei are combined to form helium. This process is known as

A) Fusion

Fusion produces a lot of energy but very little radioactive waste.

You might be interested in
What is the noble-gas electron configuration for bromine?
marshall27 [118]
My Answer: (Ar) 3d10 4s2 4p5

Hope I helped! :D
5 0
3 years ago
What volume of nitrogen gas at STP would react with 37.2 g of magnesium to produce magnesium nitride
anastassius [24]

Answer:

11.58 L of N₂

Explanation:

We'll begin by calculating the number of mole in 37.2 g of magnesium. This can be obtained as follow:

Mass of Mg = 37.2 g

Molar mass of Mg = 24 g/mol

Mole of Mg =?

Mole = mass /Molar mass

Mole of Mg = 37.2 / 24

Mole of Mg = 1.55 moles

Next, we shall write the balanced equation for the reaction. This is illustrated below:

3Mg + N₂ —> Mg₃N₂

From the balanced equation above,

3 moles of Mg reacted with 1 mole of N₂.

Therefore, 1.55 moles of Mg will react with = (1.55 × 1)/3 = 0.517 mole of N₂

Thus, 0.517 mole of N₂ is need for the reaction.

Finally, we shall determine the volume of N₂ needed for the reaction as follow:

Recall:

1 mole of a gas occupies 22.4 L at STP.

1 mole of N₂ occupied 22.4 L at STP.

Therefore, 0.517 mole of N₂ will occupy = 0.517 × 22.4 = 11.58 L at STP

Thus, 11.58 L of N₂ is needed for the reaction.

6 0
3 years ago
Consider the following enthalpy diagram and enthalpies of intermediate and overall chemical reactions.
SashulF [63]

Answer: The overall chemical reaction is exothermic is the correct statement.

Explanation: As seen from the given image, the reactants are at higher energy level and products are at lower energy level and the excess energy is released in the form of heat. These reactions are considered as exothermic reactions.

Hence, the reaction given in the image is an exothermic reaction.

6 0
3 years ago
Read 2 more answers
The following structure depicts three C atoms, two Br atoms, and eight H atoms,
Darya [45]

Answer: False

Explanation: There are four carbon atoms , eight hydrogen atoms and two Bromine atoms.

As the carbon forms four covalent bonds, every carbon must have four bonds and thus the formula of the compound is BrCH_2-CH(Br)-CH_2-CH_3.

IUPAC name of the compound is 1,2 di-bromobutane. As the carbon chain is 4 atoms long the word used is but and all the bonds are single bonds, thus the suffix used is ane.

5 0
3 years ago
Parallelogram PQRS is shown below. Parallelogram P Q R S. Angle P is 116 degrees. Angle R is opposite to angle P. What are the m
aliya0001 [1]

Answer:

64 degrees

Explanation:

5 0
3 years ago
Other questions:
  • What is the last step in the Scientific method?
    14·2 answers
  • Which of the following describes a difference between galaxies and solar systems? A. Galaxies contain only moons, while solar sy
    13·2 answers
  • Solve for x in the following expression: 3 / x = 7
    14·2 answers
  • The same baseball is thrown two different times The second throw is faster than the first throw.Which has more kinetic energy?
    6·1 answer
  • Total mass of H2O2 in 20 grams of an aqueous H2O2 solution
    7·1 answer
  • The environment with the greatest biodiversity is the one with the greatest variety of
    12·1 answer
  • Check all items common to bases:
    12·2 answers
  • Condensation is a phase change from?
    11·1 answer
  • Order the structures from smallest to largest. Chloroplast Leaf Glucose molecule Cell Water molecule ​
    9·1 answer
  • PLEASE! DUE IN 30 MINUTES! I NEED A LOT OF HELP! 50 POINTS! ANSWER ALL THREE QUESTIONS PLEASEEEEE I NEED HELP ASAP
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!