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IRINA_888 [86]
3 years ago
12

How many atoms in 1kg of platinum a 2.5x10^24 b 3.1x10^24

Chemistry
1 answer:
Nutka1998 [239]3 years ago
6 0

Answer:

3.1x10^24 it will be in 1 kg of platinum

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The crack shown in the lithosphere was created by the movement of two or more tectonic plates. What is this crack called
nikitadnepr [17]

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3 years ago
30.5 g of sodium metal reacts with chlorine gas to produce sodium chloride. How much (in grams) chlorine gas must react with thi
Lena [83]

Answer:

Mass of chlorine = 47.22 g

Explanation:

Given data:

Mass of sodium = 30.5 g

Mass of chlorine= ?

Solution:

Chemical equation:

 2Na + Cl₂      →      2NaCl  

Number of moles of Na:

Number of moles = mass/molar mass

Number of moles = 30.5g/ 23 g/mol

Number of moles = 1.33 mol

Now we will compare the moles of Cl ₂ with Na from balance chemical equation.

                    Na            :              Cl ₂

                     2              :               1

                     1.33          :            1/2×1.33 = 0.665 mol

Mass of chlorine gas:

Mass = number of moles × molar mass

Mass = 0.665 mol × 71 g/mol

Mass = 47.22 g

6 0
3 years ago
A student makes the following hypothesis: If the amount of chocolate increases then the cake will taste sweeter. What is the ind
Talja [164]

Answer:

the chocolate

Explanation:

You are changing the amount of chocolate

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3 years ago
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