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sdas [7]
3 years ago
9

What is the most important reason to consider ethics when conducting

Chemistry
1 answer:
Anon25 [30]3 years ago
4 0

Answer:

B. It is important that people are not harmed for the sake of science.

Explanation:

Ethical principles stress the need to do good and cause no harm.A researcher is therefore required to;

  • obtain an informed consent from the participants
  • minimize or eliminate risk of harm to participants
  • protect the anonymity and confidentiality of participants
  • Apply no deceptive techniques
  • allow the right to withdraw from the study by a participant
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In Balancing Equations, why do I put a 3 before reactant H?
Katena32 [7]
You have 3 (h2(so4)) on the reactants side so you need to have 6 total hydrogen’s on the products side. Therefore 3(h2) is required.
5 0
3 years ago
Explain why animals that come out at night have lots of rods in their retina
sesenic [268]

Answer:

Nocturnal animals, such as owls, tend to have wide pupils and several rod cells in their retina because wide pupil allow more light to enter the eyes and the rods cells in the retina are sensitive to dim light and are vital for night vision.

5 0
3 years ago
What is the concentration of h+ ions in a solution of hydrochloric acid that was prepared by diluting 35.0 ml of concentrated (1
Alekssandra [29.7K]
Hydrochloric acid ionisation is as follows;
HCl ---> H⁺ + Cl⁻
HCl is a strong base so there's complete dissociation of acid to H⁺ ions
The number of HCl moles is equivalent to number of H⁺ ions present
1 L of solution contains - 11.6 moles of H⁺ ions
In 35 ml number of moles - 11.6 mol/L / 1000 ml x 35 ml = 0.406 mol
This number of moles are dissolved in 500 ml 
therefore molarity = 0.406 mol /500 ml x 1000 ml = 0.812 M
4 0
3 years ago
Which of the following best describes the most common effects of wind on Earth's surface?
svp [43]
B. Erosion, weathering, and deposition
7 0
3 years ago
Determine the volume of 0.150 M NaOH solution required to neutralize 145 mL of a 0.25 M HCl solution. The neutralization reactio
QveST [7]

Answer:-

241.66 mL

Explanation:-

Volume of HCl = 145 mL / 1000 = 0.145 L

Strength of HCl = 0.25 M

Number of moles of HCl = Strength x volume

= 0.25 M x 0.145 L

= 0.03625 moles

According to the balanced chemical equation

NaOH(aq) + HCl(aq) → H 2 O(l) + NaCl(aq)

1 mol of HCl reacts with 1 mol of NaOH.

∴0.03625 moles of HCl reacts with 0.03625 moles of NaOH.

Strength of NaOH = 0.15 M

Volume of NaOH = Number of moles / strength

= 0.03625 moles / 0.15 M

= 0.24166 L x 1000

= 241.66 mL

6 0
3 years ago
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