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Angelina_Jolie [31]
3 years ago
15

What mass of hydrogen gas would completely react with 40 grams of Oxygen gas?

Chemistry
1 answer:
ArbitrLikvidat [17]3 years ago
3 0

Answer:

The equation of reaction pls

Does it react to form water

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Which method would be best to separate a mixture of oil and water?
rosijanka [135]

Answer:

distillation ​

Explanation:

Actually, distillation is used to separate liquids from nonvolatile solids, as in the separation of alcoholic liquors from fermented materials, or in the separation of two or more liquids having different boiling points, as in the separation of gasoline, kerosene, and lubricating oil from crude oil.

7 0
3 years ago
Most strings of outdoor lights are wired in a parallel circuit. Which of the following is the best reason why a string of outdoo
sergey [27]

Answer:

C.If one light in the string burns out in a parallel circuit, the rest of the lights will continue to shine.

5 0
3 years ago
I need help please help me
charle [14.2K]

chemical potential energy, thermal energy, electrical energy, sound energy

Explanation:

the coal is chemical potential energy because it is just sitting there, the coal fueled power plant is thermal energy because it is using the heat from the coal to work the power plant, that is then turned into electrical energy, which then goes to the radio which displays sound energy

<h2>pls give brainliest</h2>
7 0
3 years ago
20g of water at 30°C was mixed with 40g of water at 75°C. What is
Kipish [7]

Answer:

The temperature of the mixture is 60°C

Explanation:

We can write the energy of water as follows:

E = m×C×T

<em>Where E is energy in Joules, m is mass of water, C is specific heat of water = 4.184J/g°C and T is temperature</em>

<em />

Replacing fot both samples:

E = 20g×4.184J/g°C×30°C

E = 2510.4J

E = 40g×4.184J/g°C×75°C

E = 12552J

The total energy of the mixture is 12552J + 2510.4J = 15062.4J

Mass = 60g:

15062.4J = 60g×4.184J/g°C×T

60°C = T

<h3>The temperature of the mixture is 60°C</h3>

4 0
3 years ago
Is "dissolving in water" a chemical change or a physical change?
Schach [20]

Answer:

In fact this should be considered more of a continuum. For example salt dissolving in water is usually considered to be a physical change, however the chemical species in salt solution (hydrated sodium and chlorine ions) are different from the species in solid salt.

Explanation:

Hope this helps! Brainly me <3

8 0
3 years ago
Read 2 more answers
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