CHEMISTRY HIGH SCHOOL

If 7.84 x 10^7 J of energy is released from a fusion reaction, what amount of mass in kilograms would be lost? Recall that c = 3 x 10^8 m/s.7.06 x 10^24

8.71 x 10^-4

8.71 x 10^-7

8.71 x 10^-10

Answers

Answer 1
Answer: Use the formula
E=mc^2

plug the values,

The amount of mass in kilograms would be lost is 8.71 x 10^-10
Answer 2
Answer:

Answer : The mass lost would be, 8.71* 10^(-10)Kg

Solution : Given,

Energy released = 7.84* 10^(7)J=7.84* 10^(7)\text{ Kg }m^2/s^2

(1J=1\text{ Kg }m^2/s^2)

Speed of light 'c' = 3* 10^(8)m/s

Formula used :

E=m* c^2

where,

E = energy

m = mass

c = speed of light

Now put all the given values in the above formula, we get

7.84* 10^(7)\text{ Kg }m^2/s^2=m* (3* 10^(8)m/s)^2

m=8.71* 10^(-10)Kg

Therefore, the mass lost would be, 8.71* 10^(-10)Kg

Related Questions

How do hydrogen bonds between water molecules occur?
A light twig is barely floating on the surface of water. What will most likely happen to the twig if a drop of dishwashing detergent is added near it?It will float easily because soap disrupts the intermolecular forces of water.It will sink because soap increases the intermolecular forces of water.It will sink because soap disrupts the intermolecular forces of water.It will float easily because soap increases the intermolecular forces of water.
Complete the balanced equation: Cu(NO3)2 + Na2CO3 > ?
If a cell is placed in salt water, water leaves the cell by _____. A. Osmosis B. Diffusion C. Active transport D. Phagocytosis
Sodium ion (Na+) and calcium ion (Ca2+) produce nearly the same color in a flame test (yellow and yellow-orange, respectively). Describe a way to differentiate between the two using a solution of Na2CO3 and write the correct balanced equation(s).

Which of the following is a farming method that helps reduce the effects of wind erosion?

Answers

You can reduce wind erosion by providing a protective plant cover for the soil.

Substances made of two or more elements which are not chemically bonded are known as

Answers

Substances that are not chemically bonded are mixtures.

Which element (Na or Cl) is more likely to steal an outer electron from the other?

Answers

Answer:

Cl is more likely to than Na

Explanation:

The question asks for the element more take up an electron from the other

The ability of an atom to take take or give electrons in a chemical reaction, depends on its electron affinity and ionization energy, respectively

Chlorine, Cl, has the highest electron affinity in the periodic table which makes it attract electrons more towards itself

Sodium, Na, has a low ionization energy (about 2/5 of that of chlorine) than chlorine, Cl, making sodium more readily able to give its valence electron in a reaction

Therefore, Cl is more likely to take up an outer electron from Na.

An element has an atomic number of 30. How many protons and electrons are in a neutral atom of the element?A. 30 protons, 30 electrons
B. 15 protons, 15 electrons
C. 60 protons, 30 electrons
D. 30 protons, 0 electrons

Answers

A because it has to remain balanced.

a 15.5g sample of x combine with 42.5g of y to from the compound XY3 what are the mass of reactant and product​

Answers

Explanation:

Given parameters:

Mass of sample X = 15.5g

Mass of sample Y  = 42.5g

Unknown:

Mass of reactant and product = ?

Solution:

We can solve this problem by applying the law of conservation of mass. The law states that "in a chemical reaction, matter is neither created nor destroyed but changed from one form to another".

 We expect that the sum of the mass of the reactant will be equal to that of the product;

Mass of reactant = mass of X + mass of Y  = 15.5g + 42.5g = 58g

So, mass of XY₃ = 58g

The orderly geometric arrangement of atoms is called a crystalline solid. a. True
b. False

Answers

True
A) This fact is always true
Other Questions
An atom of which element has the strongest attraction for electrons? A) Ba B) Cs C) O D) F
What is the formula equation for the reaction between sulfuric acid and dissolved sodium hydroxide if all products and reactants are in the aqueous or liquid phase?
Which one is stronger acid with ph=5 or ph=2
Which of the following examples is a compound containing an ionic bond?A. O2 B. H2O C. CaO D. CH4