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
Anon25 [30]
2 years ago
9

Abbey always gets zits on her chin and she can't figure out

Chemistry
1 answer:
lesya [120]2 years ago
6 0

Experiment has to do with the examination of the relationship between the dependent variable and the independent variable.

<h3>What is an experiment?</h3>

The term experiment has to do with the examination of the relationship between the dependent variable and the independent variable. In this case, the independent variable is the variable that we can manipulate while the dependent variable the one that changes when we manipulate the independent variable.

Let us now identify the variables in the experiment;

independent variable; the type of product used

constant  variable; length of time that the product is used

Hypothesis; The Zits could be cleared from her face by a skin care product

The control group is the washing with water

The experimental group is the washing with a product

The constant is the face on which the product s used.

Learn more about experiment;brainly.com/question/11256472

#SPJ1

Missing parts;

Abbey always gets zits on her chin and she can’t figure out the best method to get rid of them. She decides to test several products to see which clears her face up fastest: washing with soap and water, washing with an acne face wash from the pharmacy, and washing her face with organic oils. For one week she just washes her face with water. The next week she washes every day with soap and water. The following week she uses the acne wash, and the last week she uses the organic oils. Each week she records the number of zits she has on her chin at the end of the day. What is the independent variable? What is the constant variable? What is the hypothesis? What is the control group? What is the experimental group? What is the constant?

You might be interested in
Which tool or tools would you use to measure and compare the mass of a cup of fresh water and a cup of salt water
Artemon [7]
You could use a scale to measure the mass as well as a cup to hold the water. If you were comparing the two, you should also probably use a graduated cylinder to get the same amount of each type of water.

Hope this helped ^_^
4 0
3 years ago
2 points
erica [24]

9 grams of hydrogen gas (H2) will SC  Johnson need to react in order to make 1 bottle of Windex.

Explanation:

Balance equation for the formation of ammonia from H2 gas.

N2 + 3H2 ⇒ 2 NH_{3}

Given

mass of ammonia in 1 bottle of windex = 51 gram

atomic mass of ammonia 17.01 gram/mole

number of moles = \frac{mass}{atomic mass of 1 mole}

number of moles = \frac{51}{17.01}

                               = 3 moles of ammonia is formed.

in 1 bottle of windex there are 3 moles of ammonia 0r 51 grams of ammonia.

From the equation it can be found that:

3 moles of hydrogen reacted to form 2 moles of ammonia

so, x moles of hydrogen will react to form 3 moles of ammonia.

\frac{2}{3} = \frac{3}{x}

x = 4.5 moles of hydrogen will be required.

to convert moles into gram formula used:

mass = atomic mass x number of moles  (atomic mass of H2 is 2grams/mole)

        = 2 x 4.5

        = 9 grams of hydrogen.

7 0
3 years ago
Can anyone check my work and see if it is correct? If not, may someone help me?
shusha [124]
It looks all correct to me, great job!
6 0
3 years ago
8. What is the volume of 5.6 moles of carbon dioxide gas at STP?
pshichka [43]

Answer:

125.5 ×10^-3 m^3= 0.1255 m^3

Explanation:

Volume=5.6mol×22.414dm^3

=125.5dm^3

7 0
3 years ago
If you have 1.00 mole of F2 at 1.00 atm of pressure and 0°C, what is the volume of F2?
ss7ja [257]

Answer:

V=22.4L

Explanation:

Hello,

In this case, by using the ideal gas equation, er can compute the volume of fluorine gas as shown below:

PV=nRT\\\\V=\frac{nRT}{P}=\frac{1mol*0.082\frac{atm*L}{mol*K}+(0+273)K}{1.00atm}  \\\\V=22.4L

Best regards.

4 0
3 years ago
Other questions:
  • Which statement describes a chemical property of matter?
    6·2 answers
  • QUICKEST GETS BRAINLIEST AND 7 POINTS
    10·1 answer
  • The ability or inability of a substance to combine with or change into one or more new substances is a ______.
    10·2 answers
  • The mass of 100cm3 of water is 100 g. Use the formula to calculate its density.
    10·2 answers
  • Isotopes of the same element have a different number of ______​
    14·1 answer
  • WILL PICK BRAINLIST What type of crust do DIVERGENT BOUNDARIES create?
    5·2 answers
  • Arrange the compounds by their reactivity toward electrophilic aromatic substitution.
    7·1 answer
  • 4.3 moles of a gas are at a temperature of 28 degrees * C with a pressure of 1.631 atm. What volume does the gas occupy?
    8·1 answer
  • Name a substance which will undergo changes from solid to liquid to gas between 0c and 100c ​
    15·1 answer
  • Electron configuration
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!