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
horrorfan [7]
2 years ago
10

1. How does the amount of energy in the batteries in a flashlight compare to the total amount of energy given off by the flashli

ght as light and heat?
2. What are two ways the rate of a chemical reaction can be changed?
3. Imagine you chew a cracker and swallow it.
a. What role does saliva play?
b. How is energy stored in a cracker?
c. How is energy released from the cracker?
Chemistry
1 answer:
qaws [65]2 years ago
5 0
1. The total energy in the batteries and the total energy given off by the flashlight through heat and light is equal. This is because of the "Law of the Conservation of Energy." Energy cannot be created or destroyed, only changed in form. This can also be backed with the first law of thermodynamics.

2. A rate of a chemical reaction can be increased by increasing the temperature, or introducing a catalyst.

3. a. The saliva acts as a catalysts in breaking down the cracker.

3. b. The energy is stored in the chemical bonds on the sugars in the cracker.

3. c. The energy is the cracker is released through the body's natural process in breaking down the cracker and the sugars.
You might be interested in
Define mass number of an atom.​
Georgia [21]
The mass number of an atom is basically the total number of protons and neutrons.
6 0
2 years ago
An object has balanced forces acting on it. Which of the following describes the result these balanced forces have on the object
dexar [7]

Answer:

C.It remains at rest or moves at constant speed in the same direction.

Explanation:

First, remember the Newton's 1st law of motion which states that the object at rest will remain at rest and that in motion will stay in motion with the same speed and same direction unless acted by unbalance forces.

Balanced forces on an object occur when two forces at act on an object are equal in size and act in opposite direction. In this case, a stationary object will stay at  rest while an object moving will continue to move at the same speed and same direction.

An object acted by balanced forces is said to be at equilibrium, thus the state of motion will be maintained.The object will not accelerate. A good example of an object acted by balanced forces is an object at rest or in constant motion such as a car that stopped at red-light signal or a car travelling at a constant speed.

4 0
3 years ago
(GIVING BRAINLYIST) How does temperature and precipitation change as you increase in elevation?
S_A_V [24]

Answer:

Temperature gets cooler and precipitation increases.

Explanation:

As average temperatures at the Earth's surface rise, more evaporation occurs, which, in turn, increases overall precipitation. … In addition, higher temperatures lead to more evaporation, so increased precipitation will not necessarily increase the amount of water available for drinking, irrigation, and industry

Higher elevations cause temperatures to drop because the higher up in the atmosphere you go, the colder it gets due to air pressure, in turn causing precipitation to freeze, creating snow. Lower elevations are a lot warmer because the air pressure is not as pressurized causing the temperature to be warmer

7 0
2 years ago
Read 2 more answers
The Earth revolves in a path called_________around the sun.
Rasek [7]
It’s called revolution
3 0
3 years ago
Read 2 more answers
Provide the nuclear equation for a decay of polonium-214
s344n2d4d5 [400]
The nuclear equation that describes the alpha decay of Polonium-210 can be written like this:
210/
84Po→206/82Pb+4/2 He
3 0
3 years ago
Other questions:
  • ) How many hydrogen atoms are in an acyclic alkane with 16 carbon atoms?
    8·1 answer
  • The ph of a fruit juice is 3.2. find the hydronium ion​ concentration, left bracket upper h 3 upper o superscript plus right bra
    9·1 answer
  • What is 19 hundred thousandths in scientific notation
    11·2 answers
  • 1.what happens when vinegar and baking soda are passed through lime water?
    15·1 answer
  • Which term is used when sugar is dissolved in water?a: covalentb: homogeneousc: amphibigeneousd: heterogeneous
    6·1 answer
  • The following substituents are listed in random order. Using the Cahn–Ingold–Prelog convention, rank the groups below from highe
    6·1 answer
  • What is the balanced form of Ca(OH)2(aq) + Na2CO3(aq) CaCO3(s) + NaOH(aq)
    14·1 answer
  • Based on Gay-Lussac's law, which of the following statements is true for an ideal gas at constant volume and mole amount? (4 poi
    9·1 answer
  • Match the following scientist with his experiment or contribution
    9·1 answer
  • NEED HELP PLSS:(
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!