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Romashka-Z-Leto [24]
3 years ago
10

A marble is sitting motionless on a table. How can you make it move?

Chemistry
2 answers:
Salsk061 [2.6K]3 years ago
8 0
You can pick it up and move it
valentinak56 [21]3 years ago
4 0
You can apply force. If you apply force on the marble, it will move. This corresponds to Newton's laws. Force will change the motionless marble into a marble in motion.

I hope this helps!
~kaikers
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Determine how many valence electrons magnesium contains
yanalaym [24]
There are two valence electrons.
6 0
3 years ago
How many moles of H2O2 are needed to react with 1.07 moles of N2H4?
I am Lyosha [343]

Answer:

2.14 moles of H₂O₂ are required

Explanation:

Given data:

Number of moles of H₂O₂ required = ?

Number of moles of N₂H₄ available = 1.07 mol

Solution:

Chemical equation:

N₂H₄  +   2H₂O₂       →   N₂ +  4H₂O

now we will compare the moles of H₂O₂ and N₂H₄

                          N₂H₄     :      H₂O₂  

                            1           :        2

                            1.07      :         2×1.07 = 2.14 mol

                   

6 0
3 years ago
3.8 liters of sulfur vapor, S8(g), at 921.4°C and 5.87 atm is burned in excess pure oxygen gas to give sulfur dioxide gas measur
lilavasa [31]

Answer:

116.5 g of SO₂ are formed

Explanation:

The reaction is:

S₈(g) +  8O₂(g)  → 8SO₂ (g)

Let's identify the moles of sulfur vapor, by the Ideal Gases Law

We convert the 921.4°C to Absolute T° → 921.4°C + 273 = 1194.4 K

5.87 atm . 3.8L = n . 0.082 L.atm/mol.K . 1194.4K

(5.87 atm . 3.8L) / (0.082 L.atm/mol.K . 1194.4K) = n → 0.228 moles of S₈

Ratio is 1:8, 1 mol of sulfur vapor can produce 8 moles of dioxide

Then, 0.228 moles of S₈ must produce (0.228 . 8) /1 =  1.82 moles

We convert the moles to g → 1.82 moles . 64.06 g /1mol = 116.5 g

3 0
3 years ago
Read 2 more answers
hich metal will displace nickel in a compound? A. Arsenic B. Tin C. Zinc D. Platinum
Bess [88]
Hello there,

The answer to your question is:

C. Zinc

Hope this answer helps you.
7 0
3 years ago
You are given a silver rod, copper plate and copper sulphate solution. Explain the arrangements you will do to get coating of co
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