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elixir [45]
2 years ago
8

The Answers plz and thx

Chemistry
1 answer:
garri49 [273]2 years ago
5 0

Answer:

The answers to what?

Explanation:

50x89=4,450

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What mass of K2SO4 would you measure out to prepare 550 ml of a 0.76 M solution
Nikolay [14]
The molecular weight of K2SO4 is 174.26 g/mole. The mass of K2SO4 required to make this solution is calculated in the following way. 
550mL * (0.76mole/1000mL) * (174.26g/mole) = 72.84gram
<span>I hope this helps.</span>
5 0
3 years ago
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What would a scientist’s next steps be if his/her data failed to support their hypothesis?
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To change only one variable which is very important than to test the experiment to match the hypothesis again, I think. It’s been a while since I was on that lesson‍♀️
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3 years ago
Which of these lab safety procedures is INCORRECT?
Ksju [112]

Answer:

D

Explanation:

D is not necessary to follow lab safety in Laboratory

6 0
3 years ago
If the dosage for a medication is 225mg/lb, how many grams should a 25-lb child be given?
Oksanka [162]

Answer:

5.625 grams

Explanation:

Start your equation with what you have been given.  Place the units you need in your answer on the right side of the equal sign.

225mg

-----------   X  -----------   X ------------- =   ?   g

   lb

Now start to fill in your equation and use a conversions to get rid of the units you don't want.  Convert mg into grams first.  The child's weight (25 lb) is placed over 1 just to get the equation lined up properly so you can see how the units cancel out.

225 mg                 1 g                  25 lb            5.625 g

---------------   X   ---------------  X   -------------  =   ---------------

   lb                    1000 mg                 1                  1

The lb on the top and bottom cancel each other out and you are left with just grams.  Even though it is over one, that is the same at just 5.625 grams.

3 0
2 years ago
Which is a direct result of increased consumption of metals?
borishaifa [10]
Climate change from the use of metals i think sorry if i’m wrong that one seems the most ligit to me
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3 years ago
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