All categories

3 years ago

Robert Boyle wrote "Sceptical Chymist" What was his reason for writing this book? What was he trying to prove?

2 answers:

5 0

<span>Answer: Boyle began to detach chemistry from the mysticism of alchemy. He declared that most followers of alchemy were not interested in the fundamental causes of phenomena and instead looked to.</span>

TEA [102]3 years ago

4 0

Science,,,,,,,,,,,,,,,,,,,,,,

You might be interested in

Nvm.mmmmmmmmmmmmmmmmmmmmm

amid [387]

o_o mmmmmmmmmmmmm hjkkkjc

6 0

3 years ago

Read 2 more answers

How many grams of cobalt (II) nitrate, Co(NO3)2, are required to make a 2.20%(w/v) aqueous solution in a 250 mL volumetric flask

shutvik [7]

Answer:

$\large \boxed{\text{5.50 g}}$

Explanation:

Percent means " per hundred," so % m/V means the grams of something in 100 mL of volume.

$\text{m/V \%} = \dfrac{\text{mass of solute} }{\text{volume of solution}} \times 100 \, \%$

Data:

m/V % = 2.20 %

V of solution = 250 mL

Calculations:

$\text{2.20 \%} = \dfrac{\text{mass of solute} }{\text{250 mL}} \times 100 \, \%\\\\\text{Mass of solute} = \dfrac{2.20\, \% \times \text{250 mL}}{100 \%} = \text{5.50 g}\\\\\text{The mass of Co(NO$_{3}$)$_{2}$ is $\large \boxed{\textbf{5.50 g}}$}$

8 0

3 years ago

Why are a variety of instruments needed to measure change in the climate system?

taurus [48]

I believe the answer is B.

3 0

4 years ago

How many atoms are in NaCl

uysha [10]

The correct answer would be 2

5 0

3 years ago

Read 2 more answers

How do you think we could solve the problem of plastic pollution in our oceans?

Juliette [100K]

Answer:

Starting from your own home is the best way to reduce plastic pollution. You can reduce it by stop using plastic bags, water bottles, anything that is plastic. You can reuse things instead. Use less energy. Turn off the lights whenever you leave the house or if you aren't using it. Lastly, conserve water. Don't let the water running if you aren't using it.

Hope this helps! :)

8 0

3 years ago

Read 2 more answers