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Nataly_w [17]
3 years ago
9

Help me answer all it's for science

Chemistry
2 answers:
Inga [223]3 years ago
6 0
Number four and number five are true 
Nadusha1986 [10]3 years ago
3 0
1. evaporation
2 condensation
3 sublimation
4 t
5 f 
6t
7 f
8 f

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A quart is roughly 2lbs.
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3 years ago
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I WILL GIVE BRAINLIEST!!!!!
Alexxx [7]
                                    HNO₃ + H₂S → S + NO + H₂<span>O

Assign Oxidation Number:

                                L.H.S                               R.H.S
           N in HNO</span>₃  =  +5                                     +2  =  N in NO
               S in H₂S  =  -2                                       0  =  S in S

Write Half cell Reactions:
Reduction Reaction:
                                 
3e⁻  +   HNO₃   →   NO      -------(1)
Oxidation Reaction:
                                  H₂S   →   S  +  2e⁻             -------(2)

Multiply eq. 1 with 2 and eq. 2 with 3 to balance electrons. 

                                          6e⁻  +   2 HNO₃   →   2 NO
                                    
                                             3 H₂S   →   3 S  +  6e⁻
                                                                                  Cancel e⁻s,
                                 ______________________________
                               
                             2 HNO₃  +  3 H₂S   →   2 NO  +  3 S  +  H₂O

Balance Oxygen Atoms by multiplying H₂O with 4, Hydrogen atoms will automatically get balance.

                            2 HNO₃  +  3 H₂S   →   2 NO  +  3 S  +  4H₂O


                                
4 0
3 years ago
Which of the following is a consequence of humans using fossil fuels
marusya05 [52]

Answer:

Explanation:

Following are a few consequences of fossil fuels

1. It causes air pollution.

2. When they are burned, they produce toxic substances which leads to global warming.

3. Waste products are hazardous to public health and environment.

4. They are non - renewable and unsustainable.

5. Drilling fossil fuels is a dangerous process

Hope this helps

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8 0
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Answer fast please <br> Which is a tissue?
lina2011 [118]

Answer:

the last picture on the right (kinda red-ish)

Explanation:

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Third picture: organism

Last picture: tissue

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bixtya [17]

Answer:

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Explanation:

Extrapolating is unreliable because you are predicting data outside of the data range - anything could happen for the data to stop following the trend or pattern

8 0
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