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Natasha_Volkova [10]
2 years ago
13

1. Complete the following Data Table as you conduct the lab

Chemistry
2 answers:
miskamm [114]2 years ago
4 0

Answer:

Do to half of the mnairals this can not be made into a lab there is an error

Explanation:

Alona [7]2 years ago
4 0

Answer:

Do to half of the mnairals this can not be made into a lab there is an error

Explanation:

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20. In which medium do sound waves move the fastest?
Nataliya [291]

Answer:

D. Solids

Explanation:

7 0
3 years ago
Read 2 more answers
How many moles of \ce{Fe2O3}FeX 2 ​ OX 3 ​ will be produced from 27.0 \text{ g}27.0 g27, point, 0, start text, space, g, end tex
ira [324]

Answer : The number of moles of Fe_2O_3  produced will be, 0.241 moles.

Solution : Given,

Mass of Fe = 27.0 g

Molar mass of Fe = 56 g/mole

First we have to calculate the moles of Fe.

\text{ Moles of }Fe=\frac{\text{ Mass of }Fe}{\text{ Molar mass of }Fe}=\frac{27.0g}{56g/mole}=0.482moles

Now we have to calculate the moles of Fe_2O_3

The balanced chemical reaction is,

4Fe+3O_2\rightarrow 2Fe_2O_3

From the reaction, we conclude that

As, 4 mole of Fe react to give 2 mole of Fe_2O_3

So, 0.482 moles of Fe react to give \frac{0.482}{4}\times 2=0.241 moles of Fe_2O_3

Thus, the number of moles of Fe_2O_3  produced will be, 0.241 moles.

6 0
3 years ago
Which of the following are compounds? (Select all that apply.)<br> CO2<br> Cl2<br> Ne<br> NaCl
beks73 [17]
CO2 and NaCl are both compounds
8 0
3 years ago
Which of thes is a property of a substance that is composed of atoms that are held together by ionic bonds?
Svetlanka [38]

Answer: D) It conducts electricity when it is dissolved in water

8 0
2 years ago
How do the strength and the cohesion of clay-rich regolith or soil change with the addition of water?
lisov135 [29]

Answer:

Water lowers the strength and cohesion of clay-rich regolith or soil.

Explanation:

Water can seep into the soil or clay-rich regolith and replace the air in the pore space of the soil or regolith. Water will completely surrounds all the grains of the clay-rich regolith and breaks the bonds in between the grains, that is eliminating all grain to grain contact of the regolith. When the regolith becomes saturated with water, the angle of repose is reduced to very small values and the regolith tends to loose its form.

6 0
3 years ago
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