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
ANTONII [103]
3 years ago
13

Which type of investigation is based on observation?

Chemistry
1 answer:
grigory [225]3 years ago
7 0

Answer:

Quantitative Observations

Explanation:

You might be interested in
Select the statements that correctly describe a buffer. a) An acid added to the buffer solution reacts with the weak base of the
Tom [10]

Answer:

  • <em>(B.) The pH of a buffer solution is determined by the ratio of the concentration of conjugate base to the concentration of strong acid.</em>
  • <em>(C.) A buffer is generally made up of a weak acid and its conjugate base. </em>
  • <em>(D.) The pH of a buffer solution does not change significantly when any amount of a strong acid is added.</em>

Explanation:

A buffer is  solution which resists change in pH upon addition of either acids or bases.

The pH of a buffer is calculated by the ratio of the concentration  of base to concentration of acid. The weak acid and conjugate base have a Ka similar to the pH desired.

3 0
3 years ago
What is the relationship between mass and gravity
Tpy6a [65]

Answer:

since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. So as the mass of either object increases, the force of gravitational attraction between them also increases.

Explanation:

5 0
3 years ago
Equal amounts of four gases are placed in identical containers at the temperatures that are noted below. Samples of Gases at Dif
Alborosie
Answer : S)  33.2 °C

Explanation : When the equal amounts of gases are placed in identical containers but subjected to different temperatures would exert pressure in different amount which will in turn increase the rate of collision between the molecules of gas.

So, when the temperature is increased to maximum greater amount of force would be exerted and the gas molecules will collide with a larger force. Hence the answer will be as the highest temperature i.e. 33.2 °C
4 0
3 years ago
What happens to the energy when you heat the iron? Why is this happening?
SIZIF [17.4K]

Answer:

When iron is heated in air it reacts with oxygen to form the compound iron oxide. Iron is a solid and oxygen is a gas. 5 Draw diagrams to show how the atoms are arranged in iron, oxygen and iron oxide in the circles below their names. Use different colours for the iron atoms and the oxygen atoms.

Explanation:

3 0
3 years ago
What is the correct answer to complete the table for L? *<br> 0<br> 1<br> -1<br> O 2<br> -2
lana66690 [7]

Explanation:

sorry can you snap this cause i dont get what are u asking forr i would like to help you insteadd

5 0
3 years ago
Other questions:
  • What causes the earth’s magnetic field? A. currents in the earth’s liquid-metal outer core B. the mineral composition of the ear
    5·2 answers
  • When you ride a bicycle,when is friction helpful and not helpful
    9·2 answers
  • The blue color of the sky results from the scattering of sunlight by air molecules. The blue light has a frequency of about 7.5
    6·2 answers
  • Let’s say you try to get crafty. Instead of directly heating your carbontetrachloride with the Bunsen Burner, you decide it woul
    13·1 answer
  • A runner stood at the 100-meter mark on a track. When the timer started, the runner sprinted north to the 200-meter mark. It too
    5·2 answers
  • Help me out please this is hard​
    9·2 answers
  • The high concentration of carbon dioxide (CO2) in the atmosphere of Mars inhibits infrared radiation from escaping and keeps the
    11·1 answer
  • Identify the structure below.
    7·1 answer
  • What would happen if our intestines were not coiled (twisted) inside our body?
    9·1 answer
  • Select the equality for the following: 1 L is 1.06 QT
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!