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
Whitepunk [10]
3 years ago
8

A placebo is a substance that is unlikely to affect the dependent variable.

Chemistry
2 answers:
Sergio039 [100]3 years ago
6 0

Answer : Option a) True.

Explanation : A placebo is a substance that is unlikely to affect the dependent variable. True as in a clinical trial for any change in the placebo arm is known as the placebo response, and the difference between this placebo response and the result of no treatment is called as the placebo effect. Therefore, a placebo may be given to any person in a clinical context in order to deceive that recipient into thinking that it is an part of active treatment. It actually resembles a drug but is not an actual active drug, so, it is clear that it will not affect dependent variable.

SpyIntel [72]3 years ago
6 0
True. A placebo is a substance used to ensure that the independent variable is what is affecting the dependent variable. Usually used in drug trials
You might be interested in
As current flows through a system, what happens to the voltage available at each load?
navik [9.2K]

Answer: voltage drops in each resistor ΔU= RI

Explanation: if lamps or other resistor which cause load are in series in

Electric circuit, current I passing circuit is same. Voltage decreases

In every resistor

3 0
3 years ago
Which term is defined as the region in an atom where an electron is most likely to be located
GREYUIT [131]
The region where an electron is most likely to be located is known as the electron cloud.
8 0
3 years ago
Read 2 more answers
What mass of NH3 can be made from 35.0g of N2?
egoroff_w [7]
Formation of ammonia by nitrogen and hydrogen is habers process wher 28g N2 results in formation of 34g NH3
so 35g N2 will form 34*35/28=42.5g NH3 where it given that reaction takes place in excess of H2
N2+3H2 gives 2NH3
4 0
3 years ago
Read 2 more answers
Please help me with this chem question. Only answer if you know it.
mariarad [96]
Your answer is b because it is
4 0
3 years ago
Read 2 more answers
What is the percent of oxygen by mass in a pure sample of fecr2o4? 1. 52% 2. 13% 3. 37% 4. 7.1% 5. 29%?
Marta_Voda [28]
Let us suppose that we have 1 mol of FeCr2O4. I'm going to use approximate masses because I have no idea what your periodic table will say. Just put in the exact masses from your periodic table.

Fe = 56
Cr*2 = 2*52 = 104
O4 = 4*16 = 64
===========
Total = 56 + 104 + 64 = 224
The % oxygen = (64 / 224) * 100 = 28.5 % but none of your answers match this. Perhaps you are talking about Fe2(Cr2O4)3 The brackets make all the difference in the world.

Without going through all the detail I did before, The molecular mass is
Fe * 2 = 112
Cr * 6 = 312
O * 12 = 192
The total molecular mass = 616

The % Oxygen = (192 / 616) * 100 = 31% roughly. That answer isn't there either. 

Let's wait and see who else answers.

6 0
3 years ago
Other questions:
  • Explain why the temperature of water might increase when a solution forms
    6·1 answer
  • What is 10.5g equal to in kg
    6·1 answer
  • A rock has a mass of 416 grams and when placed in a beaker of water, the level rose to 523 mL. The beaker was originally filled
    10·1 answer
  • Calculate 1.23 m x 0.89 m and give your answer with the correct number of significant figures?
    14·1 answer
  • What did rutherfords gold foil experiment help him conclude
    9·2 answers
  • 50 points please do this In your OWN WORDS DO NOT COPY FROM SOMEWHERE ELSE!
    6·1 answer
  • Magnesium +Hydrogen Phospahate
    12·2 answers
  • How to find the cube root of 1331 ​
    11·1 answer
  • As more discovers were made, whittaker proposed classifying orginsims into five _____
    13·1 answer
  • Neutrons are very important to an atom's ________<br> properties
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!