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
oee [108]
3 years ago
15

When scientists conduct investigations, they collaborate to support each other's research. What is the importance of scientists

repeating the same experiment using the same steps?
It creates further questions to investigate, which creates more accurate results.
Having several trials that produce the same results is more accurate.
When multiple scientists repeat investigations, it allows them to investigate errors.
When scientists get more accurate results, the observations can be compared.
Chemistry
2 answers:
Blababa [14]3 years ago
4 0

B.   I just did this not lying a few minutes ago LOL

GL on the rest of your test!!!! :D

sashaice [31]3 years ago
3 0

Answer:

b or c but most likely  it is c

Explanation:

You might be interested in
Which of the following is one stage of the cell cycle?
ASHA 777 [7]

Answer: A

Explanation: cytokinesis is in the M phase.... Mitosis is followed by cytokinesis (cell separation)

4 0
3 years ago
Choose all the right answers.
gayaneshka [121]
I think the answer is

Reduce friction

:)
8 0
3 years ago
Somebody please answer
Zepler [3.9K]

Answer:

177 mmHg

Explanation:

Given that:

The sample of  a gas is with Pressure (1) P_1 = 500 mmHg

The initial temperature T_1 = 773 K

The final temperature T_2 = 273 K

Using ideal gas equation:

\dfrac{P_1}{T_1} = \dfrac{P_2}{T_2} \\ \\  \dfrac{500}{773} = \dfrac{P_2}{273} \\ \\  (136500) = 773 \times P_2 \\ \\ P_2 = \dfrac{136500}{773} \\ \\  P_2 = 176.58 \ mmHg \\ \\  \simeq 177 mmHg

7 0
3 years ago
If a temperature increase from 21.0 ∘c to 35.0 ∘c triples the rate constant for a reaction, what is the value of the activation
Airida [17]

Answer:

59.077 kJ/mol.

Explanation:

  • From Arrhenius law: <em>K = Ae(-Ea/RT)</em>

where, K is the rate constant of the reaction.

A is the Arrhenius factor.

Ea is the activation energy.

R is the general gas constant.

T is the temperature.

  • At different temperatures:

<em>ln(k₂/k₁) = Ea/R [(T₂-T₁)/(T₁T₂)]</em>

k₂ = 3k₁ , Ea = ??? J/mol, R = 8.314 J/mol.K, T₁ = 294.0 K, T₂ = 308.0 K.

ln(3k₁/k₁) = (Ea / 8.314 J/mol.K) [(308.0 K - 294.0 K) / (294.0 K x 308.0 K)]

∴ ln(3) = 1.859 x 10⁻⁵ Ea

∴ Ea = ln(3) / (1.859 x 10⁻⁵) = 59.077 kJ/mol.

4 0
3 years ago
a can of diet soda will float in water while a can of regular sugar soda will sink. which of these best describes why this would
Yuri [45]
I think the correct answer from the choices listed above is option A. A can of diet soda will float in water while a can of regular sugar soda will sink. This is due to the reason that the regular soda is more dense than the diet soda. Hope this answers the question.
5 0
3 years ago
Other questions:
  • What is the compound name of 3h20
    13·1 answer
  • PLEASE HELP ME I BEG YOU
    11·1 answer
  • Calculate the mass of a liquid with a density of 2.3 g/mL and a volume of 30 mL.
    13·1 answer
  • A biochemist is attempting to replicate a chemical reaction that commonly takes place in cells. during the chemical reaction, st
    10·1 answer
  • the element copper cu has two naturally occurring isotopes. 69% of all coopers consist of atom with 34 neutrons, 31% of all samp
    15·1 answer
  • In an experiment, Lydia added 50 grams of sugar to 200 milliliters of water. She stirred the mixture, and the sugar eventually d
    6·1 answer
  • If a tire can hold 19 L of air at 175 kPa and 25° Celsius, what volume of air can the tire hold at 215 kPa and 30° Celsius?
    9·1 answer
  • 6. Which of the following statements is not true for an astronomical unit?
    5·2 answers
  • Equal volumes of H2 and O2 are placed in a balloon and then ignited. Assuming that the reaction goes to completion, which gas wi
    7·1 answer
  • How to find standard entropy in chemistry​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!