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shutvik [7]
3 years ago
5

What’s your favorite skincare ingredient/active and why do you prefer it over other ones.

Chemistry
2 answers:
madreJ [45]3 years ago
8 0
Butter bc it makes my skin juicy
DiKsa [7]3 years ago
5 0

Answer:

1.need this for school or for personal (not gonna report)

2.i use Stridex

3.Activated Charcoal gel cleanser

4.charcoal facemask on Tuesdays and Thursdays

5. lotion (face friendly)

6.LOTS of water

Explanation:

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Which of the following correctly matches the component a respiration with its job description
sp2606 [1]

hi there! i would love to help you but there are no choices or a photo attached!

3 0
3 years ago
What is the mass of H2O in 3 moles?
lions [1.4K]

La respuestas de lo que descirbiste es 18.02 gramos

Saludos


7 0
4 years ago
In a neutralization reaction of a strong acid and strong base, what will the end pH be?
matrenka [14]
The end pH will be 7 if the acid and base were added in the correct amounts in relation to each other.
general formula:
HA+BOH⇒H₂O+AB  (AB is the salt produced from the anion in the acid and cation in the base)
7 0
3 years ago
Read 2 more answers
The initial temperature of the water in a constant-pressure calorimeter is
zubka84 [21]

Answer: The enthalpy change during this reaction is 77505.56 J.

Explanation:

Given: T_{1} = 14^{o}C,         T_{2} = 87^{o}C

Mass = 254 g,       Specific heat = 4.18 J/g^{o}C

Formula used to calculate the enthalpy change is as follows.

q = m \times C \times (T_{2} - T_{1})

where,

q = enthalpy change

m = mass of substance

C = specific heat capacity

T_{1} = initial temperature

T_{2} = final temperature

Substitute the values into above formula as follows.

q = m \times C \times (T_{2} - T_{1})\\= 254 g \times 4.18 J/g^{o}C \times (87 - 14)^{o}C\\= 77505.56 J

Thus, we can conclude that the enthalpy change during this reaction is 77505.56 J.

3 0
3 years ago
How do models help scientists predict the polarity of molecules?
Eddi Din [679]

Answer:

Where the greatest electron density is. And isn’t. Look at water. H-O-H.

The oxygen has more electrons, AND 2 lone pairs - the Hydrogens will be partially positive, and so such a way shows the polarity; am arrow with +-> on the Hydrogen area. The “point” will have a negative sign; usually these are drawn as “partially positive” & “partially negative”, but I can’t draw that. Sorry.

Explanation:

6 0
4 years ago
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