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Ymorist [56]
3 years ago
10

6 MARKER FOR CHEMISTRY I NEED THIS!!!​

Chemistry
1 answer:
natita [175]3 years ago
4 0

Answer:

when you put the marker in the water the water gets into the marker and it will change the solid color to a plain color witch means that the marker will make the water in the cup the color from the marker.

Hope I can help

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I will mark who is right!!!!!!! Please help it’s due in 10 minutes!
Helen [10]

Answer: I'm thinking it should be either stay the same or decrease

Explanation: If the size is increasing then the sample should not increase but decrease or stay the same. Mainly the sample would do the opposite of what the size is doing

3 0
4 years ago
Can someone plz help me because i dont know how to do this.
Elina [12.6K]

Answer:

They curve in opposite directions because of one reason(s) latitude and longitude. Because these are different places, they will experience different weather conditions based on how far they are from sea level.

Explanation:

6 0
3 years ago
For the reaction Cu2S(s)⇌2Cu+(aq)+S2−(aq)Cu2S(s)⇌2Cu+(aq)+S2−(aq), the equilibrium concentrations are as follows: [Cu+]=1.0×10−5
klio [65]

Answer:

1x10⁻¹²

Explanation:

  • Cu₂S(s) ⇌ 2Cu⁺(aq) + S²⁻(aq)

At equilibrium:

  • [Cu⁺] = 1.0x10⁻⁵ M
  • [S²⁻] = 1.0x10⁻² M

The equilibrium constant for the the reaction can be written as:

  • Keq = [Cu⁺]² * [S²⁻]

[Cu⁺] is squared because it has a stoichiometric coefficient of 2 in the reaction. <em>Cu₂S has no effect on the constant because it is a solid</em>.

Now we can <u>calculate the equilibrium constant</u>:

  • Keq = (1.0x10⁻⁵)² * 1.0x10⁻² = 1x10⁻¹²
8 0
3 years ago
When an automobile engine starts, the metal parts immediately begin to absorb heat released during the combustion of gasoline. H
Eddi Din [679]

Answer:

H = 4,034,250 J

Explanation:

Mass, m = 165kg = 165,000g (Converting to grams)

Initial temperature = 15.7°C

Final temperature = 95.7°C

Temperature change, ΔT = 95.7 - 15.7 = 50°C

Specific heat capacity, c = 0.489 J/g·°C

Heat = ?

All the parameters are related with the equation below;

H = m * c * ΔT

H = 165000 * 0.489  * 50

H = 4,034,250 J

6 0
3 years ago
Based on the Lewis/electron dot representation of the two atoms, predict the ratio of metal cationic (+) atom to nonmetal anioni
Aleks [24]

The answer is 1:1

I got it right

8 0
3 years ago
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