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sergey [27]
3 years ago
12

Dr. Simmons wants to make sure her scientific investigation is considered good. She knows that for an experiment to produce vali

d results, it must adhere to accepted methods. Which procedure would she not include as part of her valid scientific experiment?
a) organized procedures
b) controlled surroundings
c)precise observations
d) uncontrolled variables ​
Chemistry
1 answer:
salantis [7]3 years ago
7 0

Answer:B

Explanation:Trust

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2 years ago
200 g of solid sodium hydroxide (NaOH) are dissolved in 750 mL of water. What is the concentration of this solution?
Anastaziya [24]

Answer:

6.67 M

Explanation:

Molarity = \frac{mol}{L}

<em>Convert 200g NaOH to moles. Convert 750 mL to L.</em>

200 g NaOH x (1 mol/39.998 g) = 5.00025... mol NaOH

750 mL x (1 L/1000 mL) = 0.750 L

<em>Substitute values into the equation.</em>

Molarity = \frac{5.00025}{0.750}

Molarity = 6.667... M

Molarity = 6.67 M

8 0
2 years ago
6th grade science easy
vampirchik [111]
The answer is B. Luster

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2 years ago
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QveST [7]

Answer:

<h2>#1</h2><h3>Which process is used for preparation of Sodium Carbonate? </h3>

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<h2>#2</h2><h3>How many water of crystallisation are there in Washing Soda?</h3>

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6 0
1 year ago
What is produced when an acid reacts with a base?
Lelu [443]

Answer:

salt and water

Explanation:

they react to neutralize the acid and base properties,producing a salt while the H(+) cation of the acid combines with OH(-) anion of the base to form water. I hope it's helpful

4 0
3 years ago
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