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
bezimeni [28]
3 years ago
8

Scientists often repeat experiments multiple times.

Chemistry
2 answers:
uysha [10]3 years ago
5 0
Its A, hopes this helps
fgiga [73]3 years ago
4 0

Answer:

The answer is A.

Explanation:

Scientists repeat the same experiments because they wanna try to see if they keep getting the same result. When a scientific investigation is repeated, this is called replication. Replication is important in science so scientists can “check their work.” The result of an experiment is not likely to be well accepted unless the investigation is repeated many times and the same result is always obtained.

You might be interested in
When aqueous solutions of Li3PO4 and MgSO4 are mixed, Mg3(PO4)2 is a precipitate
Lesechka [4]

Answer:

Li2SO4

Explanation:

Balance the reaction of Li3PO4 + MgSO4 = Li2SO4 + Mg3(PO4)2 using this chemical equation balancer!

8 0
3 years ago
Which of the following is TRUE about ideal gas particles?
Nina [5.8K]

Answer:

The answer is A.

Explanation:

Gas particles do not have a fixed position or volume so they move in <em>r</em><em>a</em><em>n</em><em>d</em><em>o</em><em>m</em><em> </em><em>s</em><em>p</em><em>e</em><em>e</em><em>d</em><em> </em><em>a</em><em>n</em><em>d</em><em> </em><em>d</em><em>i</em><em>r</em><em>e</em><em>c</em><em>t</em><em>i</em><em>o</em><em>n</em><em>s</em>.

(Correct me if I am wrong)

5 0
3 years ago
Why is it impossible to know the exact speed and position of an electron
spayn [35]
They are always changing speed and positions, and changing charges to move their shell and location
4 0
3 years ago
a student balanced the chemical equation for the reaction of magnesium with oxygen by writing Mg + O2 ----&gt; MgO2. What is wro
egoroff_w [7]

Answer:

Explanation:

Magnesium when it oxidizes has a valence of 2.

Oxygen, when it mixes with something, has a valence of - 2

So Mg and O2 will form something, but what? The answer is MgO

Mg + O2 ===> MgO

To balance this equation, you need 2 Magnesiums on the right and 2 Oxygens also on the right. The left will need a  two Magnesiums.

The balanced equation will be

2Mg + O2 ====> 2MgO

6 0
4 years ago
Which of these acids occurs naturally in the body and performs important regulatory functions? carbonic acid acetic acid magnesi
Svetach [21]

Answer: Carbonic acid occurs naturally in the body and performs important regulatory functions.

Explanation: Carbonic acid ( H_2CO_3 ) is an acid formed from the carbon dioxide present in the body. It is also known as the respiratory acid as it helps in the transport of carbon dioxide in the body.

With the help of enzyme Carbonic Anhydrase, carbon dioxide is converted into carbonic acid. This acid is an unstable intermediate which gets dissociated into bicarbonate ions ( HCO_3^- ) and H^+ ions. immediatley.

Therefore, Carbonic acid performs important regulatory functions in the body.

4 0
4 years ago
Read 2 more answers
Other questions:
  • In an electron dot diagram, two pairs of shared electrons represents a?
    11·1 answer
  • The phases of the moon are caused by the changing positions of the Earth and the Moon in relation to the Sun.
    14·1 answer
  • How many grams of NaCl should be added to 250 grams of waterto<br> make a 0.40 m solutions?
    12·1 answer
  • Which atom can accommodate an octet of electrons but doesn't necessarily have to?
    12·1 answer
  • WHAT DO YOU USE TO MAKE A VOLCANO?
    7·1 answer
  • 14. What three main things make up an ATP molecule?
    15·1 answer
  • If you have 9900 g of donuts, how many donuts do you have if each donut has a mass of 150 g?
    12·1 answer
  • HELPPPPP ME ASAP PLISSSSS​
    9·1 answer
  • Silver chloride is virtually insoluble in water so that the reaction appears to go to completion. How many grams of solid NaCl m
    12·1 answer
  • A student rubbed a plastic comb with a piece of silk cloth. She held the comb near running water and saw that the stream of
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!