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
PolarNik [594]
3 years ago
10

One way that scientists ensure that data are reliable is through

Chemistry
1 answer:
Vesna [10]3 years ago
4 0
Replicating experiments

(If u don’t mind can y mark me brainiest it would really help :) )
You might be interested in
Calculate the activation energy in kJ/mol for a reaction that takes place at 298K with a rate constant of 6.87 x 10-2 and the sa
liubo4ka [24]

A study assessing the effect of anxiety (low vs. high) and stress (low vs. moderate vs. high) on test.

Everyone experiences anxiety occasionally, but persistent anxiety can reduce your quality of life. Though likely best known for altering behavior, worry can have negative effects on our physical health. Anxiety speeds up our heartbeat and breathing, concentrating blood flow to the parts of our brains that need it. You are getting ready for a challenging situation by having this extremely bodily reaction. Test performance may be impacted by anxiety. According to studies, pupils with low levels of test anxiety perform better on multiple-choice question (MCQ) exams than pupils with high levels of anxiety. Studies have indicated that female students have greater levels of test anxiety than male students.

Learn more about anxiety here:

brainly.com/question/4913240

#SPJ4

3 0
2 years ago
Which process is expected to have an increase in entropy?
olganol [36]

Answer: Option (B) is the correct answer.

Explanation:

Degree of randomness of the molecules of a substance is known as entropy. More is the kinetic energy between the molecules of a substance more will be the degree of randomness.

Therefore, when a substance is present in a gaseous state then it has the maximum entropy. In liquid state, molecules are closer to each other so, there is less randomness between them.

On the other hand, in solid state molecules are much more closer to each other as they arr held by strong intermolecular forces of attraction. Therefore, they have very less entropy.

  • When liquid water is formed from gaseous hydrogen and oxygen molecules then gas is changing into liquid. So, there is decrease in entropy.
  • When N_{2}O_{4} decomposes then the reaction will be as follows.

            N_{2}O_{4} \rightarrow 2NO_{2}

Since, 1 mole is producing 2 moles. This means that degree of randomness is increasing as both the molecules are present in gaseous form.

  • In formation of a precipitate, aqueous solution is changing into solid state. Hence, degree of randomness is decreasing.
  • Rusting of iron also leads to the formation of solid as it forms Fe_{2}O_{3}.xH_{2}O.

Thus, we can conclude that decomposition of N_{2}O_{4} gas to NO_{2} gas is the process that is expected to have an increase in entropy.

4 0
3 years ago
A boy inherited genes that would ordinarily allow him to grow tall.his growth is stunted as a result of poor nutrition.this is a
Brums [2.3K]
It is an example of how the boys environment affected him, making him an outlier to what should typically happen. Hope this helps!
7 0
2 years ago
A reaction occurs when solid X is placed into solution Y. As a result, the temperature of the new solution increases by 3°C. The
Hoochie [10]

Answer:Increased the number of molecular collisions and increased the reaction rate

Explanation:

8 0
3 years ago
Cu<br> Br<br> what is the percent composition?
sweet [91]

Answer:

This is the answer of your question. ☺☺

Explanation:

Percentage composition of Cu is 71.54.

Percentage Composition of Br is 29.54.

3 0
2 years ago
Other questions:
  • How many atoms are in a mol of Oxygen (O) atoms?
    7·1 answer
  • Refer to the balanced equation. (PLEASE HELP QUICK)
    9·1 answer
  • A beaker holds xliters of 0.2M AlBr3. Give answers to parts a through din terms of x.a) How many moles of aluminum ions are ther
    12·1 answer
  • Which statement best describes the intermolecular forces between N2
    7·1 answer
  • A neutron walks into a gas station to buy some snacks. He ask the cashier ,"How much"? The cashier replies,"For you? No charge."
    14·1 answer
  • Glycolic acid, which is a monoprotic acid and a constituent in sugar cane, has a pKa of 3.9. A 25.0 mL solution of glycolic acid
    6·1 answer
  • I need help please!!!
    5·2 answers
  • How many grams of calcium chloride would be dissolved in 1.0L of a 0.10m solution of calcium chloride?
    7·1 answer
  • The ability of a substance to combine chemically with another substance.
    14·1 answer
  • Which of the following is true: A. Gamma rays are too dangerous to be used in a medicinal way. B. Gamma radiation is used common
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!