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Alla [95]
4 years ago
10

Greenhouse effect in a sentence and word to study

Chemistry
1 answer:
Natasha_Volkova [10]4 years ago
7 0

The greenhouse effect is when Earth's atmosphere gets surrounded with gasses causing the Earth to warm up.

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Does alkene/alkyne has isomers?​
emmasim [6.3K]

depend on which of them , they can have for example we have 1-buten ,2buten , iso buten(structural isomers) also they can have sterio isomers too

6 0
3 years ago
A microwave works by focusing microwave light on the food inside of it. Which type of energy transformation takes place in a mic
nasty-shy [4]

Answer:

C is the answer

Explanation:

Heat energy is transformed into electrical energy.

3 0
3 years ago
Read 2 more answers
A 135 g sample of a metal requires 2.50 kJ to change its temperature from 19.5°C to 95.5°C to 100.0°C?
just olya [345]

Answer:

0.23J/g°C

Explanation:

Given parameters:

Mass of sample  = 135g

Amount of heat  = 2.5kJ

Initial temperature  = 19.5°c

Final temperature  = 100°C

Unknown:

Specific heat capacity of the metal  = ?

Solution:

The specific heat capacity of a substance is the amount of heat required to the raise the temperature of 1g of the substance by 1°C.

   H  = m C (T₂ - T₁ )

H is the amount of heat

m is the mass

C is the specific heat capacity

T₂ is the final temperature

T₁ is the initial temperature;

     2.5 x 10³  = 135 x C x (100 - 19.5)

     2500 = 10867.5C

       C = \frac{2500}{10867.5}   = 0.23J/g°C

8 0
3 years ago
Tijuan mixed a solid and a liquid together in a beaker
Nutka1998 [239]
Tijuan mixed a solid and a liquid together in a beaker. He determined that a chemical change occurred. ... After a week, he observed that only solid salt remained in the cup and the mass had decreased I hope this helped! In some way
5 0
3 years ago
PLEASE HURRY WILL MARK BRAINLIEST 
mr Goodwill [35]

Answer:

12 Neutrons

1 Valence Electron

23 ions [11 Protons and 12 Neutrons]

22 ions [11 Electrons and Protons]

Explanation:

To find the number of neutrons in an element, you simply take its atomic number and deduct that from the atomic mass [<em>round</em><em> </em>if necessary]. There is one <em>valence </em><em>electron</em><em> </em>because<em> </em>according to the Periodic Table of Elements, the first three energy levels can fit 2 - 8 electrons:

1st Energy Level → 2 Electrons

2nd Energy Level → 8 Electrons

3rd Energy Level → 8 Electrons

4th Energy Level → 18 Electrons

5th Energy Level → 18 Electrons

6th Energy Level [Lanthanide Series] → 32 Electrons

7th Energy Level [Actinide Series] → 32 Electrons

So, as you can see, 2 + 8 gives you 10. So from there, we already filled up 2 energy levels. Now going to the third one will leave us with only one electron left over. That is where that valence electron is.

** I encourage you to write this down in your Chemistry notebook somewhere, so you can keep this stored in your memory at all times. There are some pointers in the answer as well. Copy that.

I am joyous to assist you anytime.

4 0
3 years ago
Read 2 more answers
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