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svet-max [94.6K]
3 years ago
15

What was the most likely problem with the first set of

Chemistry
1 answer:
brilliants [131]3 years ago
7 0
The answer : It was recorded by one person. Also , Can you give me the text in the comment so i can make sure :)
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What is the speed of a horse in meters per second that runs a distance of 1.2 miles in 2.4 minutes? (Hint: 1 mile = 1609 m)
dezoksy [38]
Time t=2.4 minutes=2.4×60=144 seconds
distance s=1.2 miles=1.2×1609=1930.8 meters
speed v=s/t=1930.8÷144=[tex] \frac{1930.8}{144} = \frac{160.9}{12} =[/13.408m/s ~nearly]
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3 years ago
The inca "City of the sun"was ​
SpyIntel [72]
The Inca “City of the Sun” was the city of Cuzco
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How does an object look when it is viewed through an opaque object ​
Alexxx [7]
You can not see between opaque materials because light cannot pass through them.
7 0
2 years ago
Review energy changes by identifying the correct statements about each reaction.
Grace [21]

Answer: The reaction is exothermic

The \Delta H value is negative.

Heat is a product.

Explanation:

2H_2(g)+O_2(g)\rightarrow 2H_2O(l)+136.6kcal

Endothermic reactions are defined as the reactions in which energy of the product is greater than the energy of the reactants. The total energy is absorbed in the form of heat and \Delta H for the reaction comes out to be positive.

Exothermic reactions are defined as the reactions in which energy of the product is lesser than the energy of the reactants. The total energy is released in the form of heat and \Delta H for the reaction comes out to be negative.

The substances which are written on the left side of the arrow are reactants and the substances which are written on the right side of the arrow are products. Thus heat is a product.

5 0
3 years ago
Brodation<br>number of oxygen in F2O is.​
larisa86 [58]

Answer:

Oxidation number of F2O = 0−(−1×2)

State of oxygen will be=+2

4 0
3 years ago
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