3 years ago

What were the criteria of Nils Bohlin’s solution to safer seatbelts?

Chemistry

1 answer:

DedPeter [7]3 years ago

3 0

What that person said

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Which of the following organelles directs of the other parts of the cell?

Natalija [7]

Answer:A

Explanation: because The nucleus directs all of the cell's activities, including reproduction.

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3 years ago

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HELP PLEASE !!!<br> Name the gas formed when Magnesium metal reacts with hydrochloric acid

Mrrafil [7]

Answer:

<h2>hydrogen gas is produced .</h2>

6 0

2 years ago

A chemical reaction was used to produce 2.95 moles of copper(II) bicarbonate, Cu(HCO3)2.

BARSIC [14]

Answer:

About 547 grams.

Explanation:

We want to determine the mass of copper (II) bicarbonate produced when a reaction produces 2.95 moles of copper (II) bicarbonate.

To do so, we can use the initial value and convert it to grams using the molar mass.

Find the molar mass of copper (II) bicarbonate by summing the molar mass of each individual atom:

$\displaystyle \begin{aligned} \text{MM}_\text{Cu(HCO$_3$)$_2$} &= (63.55 + 2(1.01)+2(12.01)+6(16.00))\text{ g/mol} \\ \\ &=185.59\text{ g/mol} \end{aligned}$

Dimensional Analysis:

$\displaystyle 2.95\text{ mol Cu(HCO$_3$)$_2$}\cdot \frac{185.59 \text{ g Cu(HCO$_3$)$_2$}}{1 \text{ mol Cu(HCO$_3$)$_2$}} \Rightarrow 547 \text{ g Cu(HCO$_3$)$_2$ }$

In conclusion, about 547 grams of copper (II) bicarbonate is produced.

8 0

3 years ago

6. India is a country connected to the continent of Asia. India used to be far apart

velikii [3]

I can’t see what image you have to refer too but India is now part of the rest of Asia due to continental plates running into eachother.

4 0

3 years ago

2) Examine the molecules below.<br> Circle the molecules that can also be classified as compounds.

sergejj [24]

Answer:

3rd

Explanation:

its the way they look

4 0

2 years ago