Answer:
acid +base gives salt and water
acid and carbon gives salt and water and carbon dioxide
acid and metal gives salt and hydrogen
Answer:
79.904 u for bromine
24.305 u
Not really sure what the 3rd question is asking
Explanation:
Answer:
Not sure if this will help or not but your answer might be: <u>36 electrons.</u>
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Answer:
100 cal
Explanation:
Given data:
Mass of carbohydrate = 19 g
Mass of protein = 1 g
Mass of fats = 4 g
Solution:
The average calories content of
Protein 4 cal/g
Carbohydrate 4 cal/g
Fat 9 cal/g
Then,
1 g protein × 4 cal/g = 4 cal
4 g fat × 9 cal/g = 36 cal
19 g carb. × 4 cal/g = 76 cal
Total calories = 116 cal
Round to one significant figure = 100 cal
Answer:
The number before any molecular formula applies to the entire formula. So here you have five molecules of water with two hydrogen atoms and one oxygen atom per molecule. Thus you have ten hydrogen atoms and five oxygen atoms in total.