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alexandr402 [8]
3 years ago
15

Given the equation I2(s) + 62.4kJ --> I2(g), which of the following is true:

Chemistry
1 answer:
nadya68 [22]3 years ago
7 0
The statements that are true are that;
The reaction is exothermic;
H = -62.4 kJ
And also the reaction releases energy.
Exothermic reactions are chemical reactions that release energy to the environment to the environment causing the reaction mixture and the surroundings become more hotter; therefore the delta H is negative since the heat of the products is less that that of the reactants. 
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Which of the following samples contains the greatest number of atoms?
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Answer:

C. 11 moles of N2O

Explanation:

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C. N20 contains 3 atoms; 2 atoms of Nitrogen and 1 atom of oxygen.

Number of atoms present = 3 * 11 = 33 atoms

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7 0
2 years ago
A burner is placed below the right side of a beaker. Which image shows the motion of the liquid that will result?
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Explanation:

3 0
2 years ago
The length breadth and thickness of a brick is 18cm 8 cm and 5cm respictively find the area of the widest part of rhe brick​
Sunny_sXe [5.5K]

Answer:

144cm²

Explanation:

Given dimensions:

     Length x breadth x thickness

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The widest part of this figure will be the face containing the length and the breadth.

The breadth is the width of the figure;

Area of the widest part  = length x breadth = 18cm x 8cm  = 144cm

The area of the widest part of the figure is 144cm²

4 0
3 years ago
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SOVA2 [1]

Answer:

Option 2

Explanation:

3 0
3 years ago
Please help I will mark you brainiest
arlik [135]

Answer:asexual- Energy is not required to find a mate. Offspring are genetic clones. A negative mutation can make asexually produced organisms susceptible to disease and can destroy large numbers of offspring. Some methods of asexual reproduction produce offspring that are close together and compete for food and space.

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