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Marta_Voda [28]
3 years ago
11

All seven steps of the scientific method must be used in every scientific investigation. True False

Chemistry
2 answers:
Paul [167]3 years ago
5 0

Answer: True

Explanation:

The scientific investigation is a fact finding process to determine the cause of natural processes occurring all over the world or the entire universe. The scientific investigation is conducted using scientific method. The scientific method includes the steps such as studying the background literature, making an observation, framing a question, making of hypothesis, making a prediction, testing the hypothesis by experimentation, and concluding the results.

All these seven steps are useful for every scientific investigation. As these appropriate and necessary to answer a scientific question.

Vlad [161]3 years ago
4 0
Yes I believe it's true.
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What is the potential energy of a 2 kg plant that is on a windowsill 1.3 m high
gulaghasi [49]

Answer:

P.E = 25.48 J

Explanation:

Given data:

Mass = 2 Kg

Height = 1.3 m

Potential energy = ?

Solution:

Formula:

P.E = m . g . h

P. E = potential energy

m = mass in kilogram

g = acceleration due to gravity

h = height

Now we will put the values in formula.

P.E = m . g . h

P.E = 2 Kg . 9.8 m /s² . 1.3 m

P.E = 25.48 Kg. m² / s²

 Kg. m² / s² = J

P.E = 25.48 J

8 0
3 years ago
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Calculate the molarity of a 2.43 mol aqueous NaCl solution with a density of 2.00 g/mL.
anygoal [31]

Answer:

You need to add more points people will not answer if its this low

Explanation:

3 0
3 years ago
Can a tank of oxygen gas ever be half empty? explain
Brilliant_brown [7]
Im sorry about my answer a while ago.

answer: it will not be half empty ever. because any gas take all the space of the tank. molecules are everywhere they take so much space.
4 0
3 years ago
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Thank uuuu so much!!!!!
kow [346]

Answer:

A. 0.83

Explanation:

Hopefully this helps!

7 0
3 years ago
Nitrogen (N2) and hydrogen (H2) react to form ammonia (NH3). Consider a mixture of six nitrogen molecules and six hydrogen molec
Nezavi [6.7K]

Answer:

a)  No molecules of hydrogen

b) four molecules of ammonia

c) four left molecules of nitrogen.

Explanation:

The balanced reaction between nitrogen and hydrogen molecules to give ammonia molecules is:

N_{2}(g)+3H_{2}(g) -->2NH_{3}

Thus one molecule of nitrogen will react with three molecules of hydrogen to give two molecules of ammonia.

We have six molecules of each nitrogen and hydrogen in the closed container and they undergo complete reaction it means the limiting reagent is hydrogen. For six molecules of nitrogen, eighteen molecules of hydrogen will be required.

So six molecules of hydrogen will react with two molecules of nitrogen to give four molecules of ammonia.

The product mixture will have

a) No molecules of hydrogen

b) four molecules of ammonia

c) four left molecules of nitrogen.

7 0
3 years ago
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