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butalik [34]
2 years ago
9

PLSS HELP!! Are these True or False questions

Physics
1 answer:
skelet666 [1.2K]2 years ago
5 0

Answer:

11. True  

12. False (air pressure)

13. False (nitrogen)

14. False (stratosphere)

Explanation:

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Almost everything in the universe orbits around a central object. The planets orbit the sun and moons orbit planets. The force M
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Gravity is why orbits are happening.
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A cube of iron (Cp = 0.450 J/g•°C) with a mass of 55.8 g is heated from 25.0°C to 49.0°C. How much heat is required for this pro
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Is this circuit parallel or inseries ​
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2 years ago
which one of the following is not an example of a combination reaction a. 2H2O(I)---&gt; 2H2(g)+O2(g) b. 2K+CI2---&gt;2KCI c. 2H
Alexxandr [17]
The answer would be A.

Combination reaction, otherwise known as synthesis reaction, occurs when two or more substances react and form a single, more complex substance.

A combination reaction looks like this in an equation:

                                     <em> A + B         </em><em>→       </em><em>AB</em>
                                   reactants              product

So from two reactants they become one product. 
Let's take a look at choice A.

                                   2H₂O(l)       →      2H₂(g) + O₂(g)
                                  reactant                     product(s)

Notice that from one substance, it broke down into two substances. So this is not a combination reaction. This is what you call a <em>decomposition reaction. </em>
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_____Is defined as the conductors and equipment for delivering electric energy from the serving utility to the wiring system of
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2 years ago
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