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Diano4ka-milaya [45]
3 years ago
10

Please help me

Chemistry
2 answers:
jekas [21]3 years ago
7 0
Chemical reaction :)
olchik [2.2K]3 years ago
5 0

Explanation:

hii dear how r u hope u r fine do u have zo. om

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How many atoms are in 3.690 moles of oxygen
sweet [91]

1 mole of any substance contains Avogadro's number.  

So, 1 mole of O2= 6.023x10^23 molecules  

3 mole of O2= 6.023x10^23x3 molecules  

= 1.8069x10^24 molecules  

Each molecule of Oxygen has 2 atoms.  

therefore,  

1.8069x10^24 molecules= 1.8069x10^24 x 2 atoms  

= 3.6138x10^24 atoms.

4 0
3 years ago
Determine the mass of 2.4 x 10^24 atoms of gold?​
Scorpion4ik [409]

Answer:

Mass = 785.9 g

Explanation:

Given data:

Atoms of gold = 2.4 × 10²⁴ atoms

Mass of gold = ?

Solution:

First of all we will convert the number of atoms into moles.

2.4 × 10²⁴ atoms × 1 mol/ 6.02 × 10²³ atoms

number of moles = 3.99 mol

Now we will determine the mass of gold.

Mass = number of moles × molar mass

Mass =  3.99 mol × 196.97 g/mol

Mass = 785.9 g

8 0
3 years ago
Read 2 more answers
How many moles and atoms are there in 60 grams of Calcium?
marta [7]

Answer:

The moles present in 60 g of calcium are 1.5 moles.

6 0
3 years ago
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Water exhibits high levels of cohesion due to the polarity of the molecule (positively and negatively charged sides). given this
nalin [4]
Covalent bonds and it is between the hydrogens (hydrogen bonds)
7 0
3 years ago
Which of the reactants or products is a gas<br><br> c4h10<br><br> o2<br><br> co2
Alex

Answer:

co2

Explanation:

because carbon is a gas product

7 0
3 years ago
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