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
Pepsi [2]
3 years ago
10

Chemical changes occur as energy is transferred when molecules- - or - to form one or more new substances

Physics
2 answers:
Anastasy [175]3 years ago
7 0

Answer:

change, combine

timurjin [86]3 years ago
4 0

Answer:

Correct options are C. As food is digested, molecule bonds are broken, allowing new molecules to form that can be used by our bodies.

D. Energy stored in organic fuels are used for heat and electricity/ When batteries are connected to a circuit, a reaction occurs inside the cell producing electrical energy.

Explanation:

The breakdown of food leads to the release of chemical energy which was first stored in food. This energy is used to drive necessary functions of the body. A series of chemical reactions are involved in the breakdown of food and changing them into useful components for the cell.

Chemical energy is stored in circuits. When the battery is connected to a circuit, the chemical energy gets transferred into electrical energy.

You might be interested in
Công thức dùng tính tần số dao động của con lắc lò xò
tino4ka555 [31]

Answer:

f = 1 / [ 2*pi*R*C*Sqrt(2*N)

Explanation:

f = 1 / [ 2*pi*R*C*Sqrt(2*N) is the formula. Sorry I answered in English.

6 0
3 years ago
I’m not sure how to do 30, could someone pls help?
choli [55]

I think its C or D.

Einstein's Nobel winning photoelectric equation.

The higher the work function, the more energy needed to photoeject an electron from the surfface

Try D

8 0
2 years ago
How do you calculate a bearing angle and its equivalent angle?
denis-greek [22]

Explanation:

A bearing if an angle is measured clockwise from north direction.

e.g Below the bearing of B from A is 025. (3 figures are always given). the bearing of A from B is 205°.

4 0
2 years ago
If many household substances classify as acids or bases what is the ph scale
bekas [8.4K]

Answer: Some household items that contain acids include: yogurt, vinegar,lemon juice, citric acid, apples, jelly, pineapples, cranberry sauce, milk, and batteries and In chemistry, pH is a scale used to specify how acidic or basic a water-based solution is. Acidic solutions have a lower pH, while basic solutions have a higher pH. At room temperature, pure water is neither acidic nor basic and has a pH of 7.

4 0
3 years ago
Salt is now added to the water in the bucket, increasing the density of the liquid. what happens to the tension in the string ?
AlexFokin [52]

The question involves a ping-pong ball that is held submerged in a bucket by a string attached to the bottom of the bucket.

The answer is the tension of the string will increase. This is because making the water salty increases its density, and consequently, increases its buoyancy. This is why sea water is more buoyant than fresh water. Therefore the ping pong is pushed more upwards by the water when salt is added than initially. This gives the string more tension.


5 0
3 years ago
Other questions:
  • The following diagram represents a cart with an initial velocity of 1.0 m/s sliding along a frictionless track from point A:
    9·2 answers
  • A student measures the speed of a rolling ball three times. She adds the measurements and divides by 3.What quantity did the stu
    5·2 answers
  • Why does life hate me?
    14·2 answers
  • There are 10 deciliters in a liter how many liters are in 82 deciliters?
    12·1 answer
  • Two identical boxes (equal dimensions and mass) are at rest, the first on a 30-degree incline and the second on a 45-degree incl
    10·1 answer
  • ***PLEASE HELP*** (you don’t have to answer all but at least 1 or 2 answers would help!!!)
    7·1 answer
  • In an experiment to measure the specific heat capacity of copper, 0.02 kg of water at 70°C is poured into a copper calorimeter (
    14·1 answer
  • What was your favorite thing to learn in physics
    8·1 answer
  • A 4.5 kg box is being pulled by a girl using a string that makes an angle of 20° horizontal. Find the force of friction if the f
    13·1 answer
  • !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!