3 years ago

Which statement best describes a difference between scientists and engineers?

2 answers:

7 0

Answer: Scientists study how things work, while engineers create new things.

5 0

Answer. Answer: Scientists study how things work, while engineers create new things

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Nataly_w [17]

5 g of potassium oxalate react to produce 0.03 moles of calcium oxalate.

Calcium oxalate (CaC₂O₄) is obtained by the reaction of 5 g of potassium oxalate (K₂C₂O₄).

We can calculate the moles of CaC₂O₄ obtained considering the following relationships.

$5 g K_2C_2O_4 \times \frac{1molK_2C_2O_4}{184.24gK_2C_2O_4} \times \frac{1molCaC_2O_4}{2molK_2C_2O_4} = 0.03molCaC_2O_4$

5 g of potassium oxalate react to produce 0.03 moles of calcium oxalate.

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3 years ago

Charra [1.4K]

Answer: Mendeleev improve newlands periodic table because he swapped the order of some elements if that fitted their properties better.

Explanation: I hope this helps!... :)

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3 years ago

garik1379 [7]

Answer:

true

Explanation:

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3 years ago

UNO [17]

Answer: A and D

Explanation: isotopes must have same atomic number but different mass number due to the difference in their Neutron number

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3 years ago

Lady bird [3.3K]

I think it’s A. Hope this helps

3 0

3 years ago