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
Ber [7]
3 years ago
6

Which of the following procedures demonstrates repetition? A. Jeremiah measures the mass of five different strips of metal. He p

laces the strips in five different test tubes filled with hydrochloric acid. He observes if heat and bubbles are produced after the metal strips and acid are combined. B. Cynthia monitors the growth rate of her pet turtle. She measures the length and weight of her turtle every Sunday over the course of six months. C. Marco places a toy car at the top of a ramp. He releases the car and measures how long it takes for the car to reach the bottom of the ramp. Then, he returns the car to the top of the ramp, releases the car again, and makes an additional measurement. D. Kasey performs a scientific investigation on the effects of using soda instead of water to hydrate plants. Caleb uses Kasey's procedure and performs the same experiment during the following month.
Chemistry
2 answers:
lara31 [8.8K]3 years ago
7 0

The answer is C bc i did it already.

viktelen [127]3 years ago
3 0

Answer:Marco places a toy car at the top of a ramp. He releases the car and measures how long it takes for the car to reach the bottom of the ramp. Then, he returns the car to the top of the ramp, releases the car again, and makes an additional measurement.

Explanation:

You might be interested in
I NEED HELP PLEASE! :)
MrMuchimi

<u>answer</u> 1<u> </u><u>:</u>

Law of conservation of momentum states that

For two or more bodies in an isolated system acting upon each other, their total momentum remains constant unless an external force is applied. Therefore, momentum can neither be created nor destroyed.

<u>answer</u><u> </u><u>2</u><u>:</u><u> </u>

When a substance is provided energy<u> </u>in the form of heat, it's temperature increases. The extent of temperature increase is determined by the heat capacity of the substance. The larger the heat capacity of a substance, the more energy is required to raise its temperature.

When a substance undergoes a FIRST ORDER phase change, its temperature remains constant as long as the phase change remains incomplete. When ice at -10 degrees C is heated, its temperature rises until it reaches 0 degrees C. At that temperature, it starts melting and solid water is converted to liquid water. During this time, all the heat energy provided to the system is USED UP in the process of converting solid to the liquid. Only when all the solid is converted, is the heat used to raise the temperature of the liquid.

This is what results in the flat part of the freezing/melting of condensation/boiling curve. In this flat region, the heat capacity of the substance is infinite. This is the famous "divergence" of the heat capacity during a first order phase transition.

There are certain phase transitions where the heat capacity does not become infinitely large, such as the process of a non-magnetic substance becoming a magnetic substance (when cooled below the so-called Curie temperature).

4 0
3 years ago
What is present in the glucose molecule that is missing in the carbon dioxide molecule?
rusak2 [61]
Hydrogen .<span>carbon dioxide is CO2 and </span><span>glucose is C6H12O6</span>
3 0
3 years ago
Which molecule is amphoteric?
frosja888 [35]

Answer:

The answer is B

Explanation:

4 0
3 years ago
Read 2 more answers
Laura sees a horse pulling a buggy.
Tcecarenko [31]

Answer:

B

Explanation:

I think that the anserw is B.

4 0
2 years ago
Give an example of experimental bias
ale4655 [162]

Answer:

chongus because he's the only good one

3 0
3 years ago
Other questions:
  • A stream of negatively charged particles is called:
    7·1 answer
  • 0.378 mL + 42.3 mL - 1.5833 mL
    7·1 answer
  • Be sure to answer all parts. In the electrolysis of molten BaI2, (a) What product forms at the negative electrode? (b) What prod
    13·1 answer
  • Limiting Reactant problem
    8·1 answer
  • A student has a solid block of steel and a solid plastic block of the same size.
    6·1 answer
  • Help me please for brainliest and 10 points.
    10·1 answer
  • Plz help me again I can not do science I stg I might lose my mind.
    15·2 answers
  • At which pesan pressure lowest The image shows a representation of mountains of various heights, numbered 1, 2, and 3 The plami
    10·1 answer
  • Atoms of arsenic (As) are often added to silicon (Si) in a process called doping to change the conductivity of the silicon. How
    13·1 answer
  • Cis-platin is a chlorine-containing chemotherapy agent with the formula pt(nh3)2cl2. What is the mass of one mole of cis-platin?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!