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julsineya [31]
3 years ago
12

Machines are never 100 percent efficient because some work is used to overcome friction and inertia. True False

Chemistry
2 answers:
ElenaW [278]3 years ago
7 0
False,
machines constantly mess up
Y_Kistochka [10]3 years ago
3 0
This is wrong because machines can make mistakes that why we fix it
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Magnesium Oxide decomposes to produce 3.54 grams of oxygen gas. How many grams of magnesium oxide decomposed?
sukhopar [10]
<h2>Let us solve for it </h2>

Explanation:

Magnesium oxide

  • It is MgO  
  • Its molecular mass is : 24 +16=40 g
  • When MgO decomposes it forms = 3.54 g of oxygen gas  
  • when 40 g of MgO decomposes it forms = 16g of oxygen  
  • or we can say that :
  • 16g of oxygen is produced when 40 g of MgO is decomposed .
  • 1g of oxygen will be formed from =40/16g of MgO  
  • 3.54 g of oxygen will be formed = 40/16 x 3.54 =8.85g of MgO  

4 0
3 years ago
the term diffusion comes from a latin word meaning to spread apart. how is the term diffusion related to its latin word of origi
Nitella [24]

it means basically the same thing but can be used in different context. like if someone says, "lets diffuse the situation." it means lets separate it and find out what's going on with it. Like if you don't understand a sentence when you were younger your teacher would tell you to break down the sentence, and try to use context clues. What you are doing is diffusing the sentence so that your not looking at it as one big confusing sentence, your "breaking it down" and that helps you a lot. I hope I helped you, if not let me know and I can diffuse the topic a little more to make it more approachable and easy to understand. :)

3 0
3 years ago
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Which functional group does the molecule below have?
Andrei [34K]

Answer:

Hydroxyl

Explanation:

A hydroxyl group is a functional group that attaches to some molecules containing an oxygen and hydrogen atom, bonded together. Also spelled hydroxy, this functional group provides important functions to both alcohols and carboxylic acids.

3 0
3 years ago
Speed.
Alexus [3.1K]
Increases with

hope this helped :))
correct me if i’m wrong
5 0
2 years ago
Please help im rlly stuck
atroni [7]

Answer:

A?

Explanation:

7 0
2 years ago
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