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
Agata [3.3K]
3 years ago
9

When baking soda and vinegar are mixed together bubbles form and the vinegar and baking soda are changed into new chemicals. Thi

s is an example of - A. a physical change. B. a chemical change. C. both a physical and chemical change. D. neither a physical nor a chemical change.
Physics
1 answer:
nadya68 [22]3 years ago
3 0

Answer:

A. Chemical change

Explanation:

When vinegar and baking soda are first mixed together, hydrogen ions in the vinegar react with the sodium and bicarbonate ions in the baking soda. The result of this initial reaction is two new chemicals: carbonic acid and sodium acetate.

You might be interested in
10. Josie and Trey were working on their physics project and both built catapults. Trey's catapult shot a ball
SVEN [57.7K]

Answer:

Josie's ball faster than T

3 0
2 years ago
A 3,000-N force gives an object an acceleration of 15 m/s^2. The mass of the object is
Bingel [31]
<h2>Answer:</h2>

<em>Hello, </em>

<h3><u>QUESTION)</u></h3>

According to the second Newton's Law,

<em>✔ We have : F = m x a ⇔ m = F/a </em>

  • m = 3000/15
  • m = 200 kg

The mass of the object is therefore 200 kg.

7 0
3 years ago
Read 2 more answers
A space vehicle approaches a space station in orbit. The intent of the engineers is to have the vehicle slowly approach, reducin
N76 [4]

Answer: The total momentum before the docking maneuver is mV_{1}+MV_{2} and after the docking maneuver is (m+M) U

Explanation:

Linear momentum p (generally just called momentum) is defined as mass in motion and is given by the following equation:  

p=m.v  

Where m is the mass of the object and v its velocity.

According to the conservation of momentum law:

<em>"If two objects or bodies are in a closed system and both collide, the total momentum of these two objects before the collision </em>p_{i} <em>will be the same as the total momentum of these same two objects after the collision </em>p_{f}<em>". </em>

<em />

p_{i}=p_{f}

This means, that although the momentum of each object may change after the collision, the total momentum of the system does not change.

Now, the docking of a space vehicle with the space station is an inelastic collision, which means both objects remain together after the collision.

Hence, the<u> initial momentum</u> is:

p_{i}=mV_{1}+MV_{2}

Where:

m is the mass of the vehicle

V_{1} is the velocity of th vehicle

M is the mass of the space station

V_{2} is the velocity of the space station

And the <u>final momentum</u> is:

p_{f}=(m+M)U

Where:

U is the velocity of the vehicle and space station docked

6 0
3 years ago
Read 2 more answers
Bohr analyzed the spectral lines of hydrogen.<br><br>true or false?​
trasher [3.6K]

Answer:

I think it is false. Johann balmer analyzed the spectral lines of hydrogen

6 0
2 years ago
Which example best shows a person using the principle of force in an activity?
sleet_krkn [62]
A bowler throws a bowling ball that rolls down the lane, im like 98% sure it’s that one
6 0
2 years ago
Other questions:
  • What characteristics of a planet determine the strength of its gravitational force on other objects? A. diameter of the planet a
    12·1 answer
  • Reflections from a thin layer of air between two glass plates cause constructive interference for a particular wavelength of lig
    13·1 answer
  • You place a 0.17 kg can of soup and a 0.31 kg jar of pickles on the kitchen counter, separated by a distance of 0.42 m. What is
    13·1 answer
  • A small difference between means may not be statistically significant, but it could reach statistical significance with a large
    5·1 answer
  • Which of the following is true about mutations in somatic cells?
    14·1 answer
  • How are the interference patterns for light through a double slit and light through a single slit similar yet different
    5·1 answer
  • Comparing the Motion of Two Cars
    6·2 answers
  • can someone please help me A wave’s velocity is 120 m/sec with a frequency of 6 Hz. What is its wavelength?
    13·2 answers
  • Please help. All the information is in the image.
    13·1 answer
  • The 20 kg at angle of 53⁰ in an inclined plane is realsed from rest the coefficient of friction bn the block and the inclined pl
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!