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vagabundo [1.1K]
4 years ago
7

Moby eats three-sixths of a pizza. Which fraction is equivalent to three-sixths?​

Chemistry
1 answer:
katen-ka-za [31]4 years ago
4 0

Answer:

1/2

Explanation:

Half of 6 is 3 so therefore it is a half.

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I need help pleaseee
Alecsey [184]

If you need help, then ask yourself what you need..


7 0
4 years ago
g In photosystem II, after pigment molecules donate excited electrons to the reaction center, electrons are taken from ___ to re
marysya [2.9K]

Answer: B(water)

Explanation:

Photosystem II uses energy from light to extract electron from water molecule to fill the hole left as the energized electron passes up the chain.When the electrons are removed from the water molecules,the water molecule breaks down into oxygen gas,which bubbles away, and hydrogen ions,which are used to power ATP synthesis.

7 0
3 years ago
A graduated cylinder has 100 mL of water in it. A rock is then placed in the cylinder
gulaghasi [49]

Answer:

105-100=5 ,

{5cm}^{3 }

8 0
3 years ago
A 44.0mg sample of carbon reacts with sulfur to form 122 mg of the compound.
anygoal [31]

Answer:

Empirical formula = C₃S₂

Explanation:

Given data:

Mass of carbon = 44.0 mg (44/1000 = 0.044 g)

Mass of sulfur = 122 mg - 44.0 mg = 78 mg = 78/1000 = 0.078 g)

Empirical formula = ?

Solution:

First of all we will calculate the number of moles.

Number of moles of carbon = mass / molar mass

Number of moles of carbon = 0.044 g/ 12.01 g/mol

Number of moles of carbon = 0.0037 mol

Number of moles of sulfur:

Number of moles = mass / molar mass

Number of moles = 0.078 g/ 32,066 g/mol

Number of moles  = 0.0024 mol

Now we will compare the moles:

                C                            :                  S

             0.0037/0.0024        :             0.0024/0.0024

                  1.5                         :               1

C : S = 2(1.5 : 1)

C : S = 3 : 2

Empirical formula = C₃S₂

 

4 0
3 years ago
How many molecules are in 3.0 moles of O2
Alex777 [14]
Answer:  " <span>1.8 * 10²⁴ molecules of O₂ " .
________________________________________</span>

3.0 moles O₂ * (6.02 * 10²³ molecules O₂ / 1 mol O₂) = 


[ (3.0) *(6.02 * 10²³) ] molecules O₂
                                  = 1.806 * 10²⁴ ; round to 2 significant figures.
                                              = 1.8 * 10²⁴ molecules of O₂ .
______________________________________________________
5 0
3 years ago
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