Answer:
exothermic, with a decrease in entropy
Explanation:
Whenever you produce heat as a product in a reaction, the reaction is exothermic. To determine entropy, we know we have 4 moles of gas on reactant (1 from N2 and 3 from H2) and in produce side we only have two moles (2 from NH3) thus since we are decreasing the number of gas molecules, there is going to be less disorder, hence decrease in entropy.
A soft drink that contains 47 grams of carbohydrates per serving has a nutritional calories (cal) per serving of 188 calories.
Calories are a measurement of energy released from your body after digestion and absorption of food whereas carbohydrate is a carbon-based organic compound consisting of carbon, hydrogen, and oxygen atoms with a general chemical molecular formula of CH₂O.
In order to get the number of nutritional calories per serving from a soft drink that has 47 grams of carbohydrate, we will need to multiply the number of grams by 4 since there are about 4 calories for every gram of carbohydrate, and the calculation is as follows:
47×4=188
Hence, there are 188 calories in a soft drink that contains 47 grams of carbohydrates.
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Answer:
The answer to your question is 1.55 ml
Explanation:
Data
Percent by volume = 5%
Total volume = 31 ml
Volume of solute = ?
Formula
Percent by volume = 
Solve for volume of solute
Volume of solute = 
Substitution
Volume of solute = 
Simplification
Volume of solute = 1.55 ml
The planet that orbits in a near circle is EARTH :D
Answer:
3.50 kg
Explanation:
Law of definite proportion: These law states that all pure samples of a particular chemical compound contains similar elements combined in the same proportion by mass.
From the law above,
First sample,
The ratio of fluorine and magnesium in the sample of magnesium fluoride is
0.764:1.19 = 1:1.6
mass of fluorine: mass of magnesium ≈ 1:1.6
Second sample,
mass of magnesium fluoride = 5.75 kg
mass of magnesium = 1.19(5.75)/(1.19+0.764)
mass of magnesium = 6.8425/1.954
mass of magnesium = 3.50 kg
Hence the second sample produced 3.50 kg of magnesium.
