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
shepuryov [24]
3 years ago
13

Very unsure on my answers for these 2 questions. I really have no idea what I'm doing. Could someone please explain? Will give m

edal and maybe become a fan if someone would just help me understand! Please?
1. Which of the following energy yields is likely to have come from a fission or fusion reaction?
1.0 × 10^2 kJ/mol

2.5 × 10^2 kJ/mol

1.2 × 10^3 kJ/mol

*This one??? 1.4 × 10^11 kJ/mol


2. In a nuclear reaction, a change in mass of 1.0 × 104 g occurs. What is the corresponding change in energy? Use the formula E = mc2.
9.0 × 10^3 kJ

*My best guess... 9.0 × 10^6 kJ

9.0 × 10^9 kJ

9.0 × 10^12 k
Chemistry
1 answer:
murzikaleks [220]3 years ago
6 0
The answers are the following:
1. <span>1.4 x 10^11 kJ/mol
2. </span><span>9.0 × 10^6 kJ

Therefor I conclude that your answers are correct. </span>
You might be interested in
Napisz wzory sumaryczne tlenków o podanych nazwach
Alja [10]

Answer:

kingkongkabayo jahsgajavafhabavwh

6 0
3 years ago
A true statement about mass is that:
Orlov [11]

Answer:

(c.) as the force of Earth's gravity on an object increases, the object's mass increases

Explanation:

Based on newton's law of gravitation "every particle of matter in the universe attracts every other particle with a force that is directly proportional to the product of the masses of the particles and inversely proportional to the square of the distance between them".

It is mathematically expressed as:

    F = \frac{Gm_{1} m_{2} }{r^{2} }

F is the gravitational force on either particle

m₁ and m₂ are the masses

r is the distance between particles

G is the universal gravitation constant.

From this expression, we see that the force of earth's gravity is directly proportional to mass.

7 0
3 years ago
What is shown by the structural formula of a molecule or polyatomic ion?
Misha Larkins [42]
Answer : Option A) the arrangement of bonded atoms.


Explanation : A structural formula of certain molecule depicts the way the atoms are arranged in that particular molecule in any polyatomic species. It helps in deciding the chemical properties of that polyatomic molecule.
6 0
3 years ago
Read 2 more answers
How does water heat earth
vovikov84 [41]
The answer is the 3rd one down I think
6 0
3 years ago
Which of the following is a physical change? A) sawing a piece of wood in half. B) burning a piece of wood. C) rust forming on a
algol13
The on that is considered a physical change is : A. Sawing a piece of wood in half

When you cut a piece of wood, the chemical compound within the wood will not change at all, which mean that it's a physical change

hope this helps
5 0
3 years ago
Other questions:
  • PLEASE HELP ME! CORRECT ANSWER WILL GET BRAINLIEST
    9·1 answer
  • S, selentum 83 has a half life
    15·1 answer
  • Is this solution saturated or unsaturated? How can you tell? the solution is strontium and phosphate mixed in water
    5·1 answer
  • __2. Which characteristic does NOT apply to all living things?
    7·2 answers
  • If a sample of copper with a density of 8.90 g/cm3 displaces 13.0 mL of water when placed in a beaker, what is its mass?
    11·1 answer
  • Which example best represents the use of creativity in scientific inquiry?
    7·2 answers
  • Hydrogenation reactions, in which H2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer indu
    12·1 answer
  • Which statement most accurately compares the temperature of the core of the sun to its surface
    8·1 answer
  • A gas sample contained in cylinder equipped with a moveable piston occupied 300.0 mL at a pressure of 20.0 atm. what would be th
    13·1 answer
  • If I have 22,9 moles of a gas at a pressure of 12.4 atm and a volume of 24 liters, what is the temperature?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!