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3 years ago

Which properties do all solids share?

Chemistry

1 answer:

Lera25 [3.4K]3 years ago

4 0

Answer:

Explanation:

because when you hold a solid in your hand does it move does it shift no it stays the same so it doesn't take the form of the container it's in cuz that's a liquid.

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Fe2O3 (molar mass = 159.7 g/mol) reacts with CO (molar mass = 28.0 g/mol) according to the equation When 125.6 g of CO reacts wi

Anuta_ua [19.1K]

Answer:

=1.4953 moles

Explanation:

Iron (III) Oxide is reduced by carbon (II) oxide into Iron. According to the following equation, One mole of Fe₂O₃ react with 3 moles of CO to produce 2 moles of Fe. Thus the reaction ratio of CO to Fe₂O₃ is 3:1

Fe₂O₃₍s₎ + 3CO → 2Fe₍s₎ + 3CO₂₍g₎

125.6 grams of CO is equivalent to: 125.6g/28.0g/mol

=4.486 moles.

The number of moles of Fe produced by the reaction is:

=(4.486 moles×1)/3

=1.4953 moles

3 0

4 years ago

How should you change this image to represent an ionic bond between sodium and fluorine?

xenn [34]

C. Move one electron from sodium to fluorine, because the element with the smallest amount of valence electrons is the one that give away the electrons, it is easier to add one to seven than it is to add 7 to one. I just learned this in physics, hope it helps! If you need more explaining I can do that.

4 0

3 years ago

Read 2 more answers

A teacher divides her class into four groups. She assigns

babunello [35]

Group C : 32.1°C , 31.9°C, 31.8°C makes the most precise measurements of the object's temperature.

Precision :The degree of similarity between study results of the experiment if they were performed today under comparable conditions.

If repeated measurements yield similar results, the measurement is considered precise (or repeated surveys).

It means how closely all the results are related .

Therefore, there should be less difference between the measurements of all the results.

In option (a) , there is a difference of 1° in all the results.

In option (b) , there is a difference of approximately 1.5° in all the results.

In option (c), there is only 0.2° difference in all the results.

In option (d) , there is a difference of 3° in all the results.

Therefore, All the option of group (c) are closely related.

Hence, Group (c) 32.1°C, 31.9°C, 31.8°C makes the most precise

measurements of the object's temperature.

Learn more about Precision & Accuracy here brainly.com/question/5792909

#SPJ1

7 0

2 years ago

The gas in a cylinder has a volume of 8 liters at a pressure of 101 kPa. The pressure of the gas is increased to 213 kPa. Assumi

shusha [124]

We'll use the Ideal Gas Law.

Before:
$p_1V_1=n_1RT_1\\\\
(101\times10^{3})\cdot8=n_1RT_1\\\\
n_1RT_1=808\times10^3~~~(i)$

After:
$p_2V_2=n_2RT_2\\\\
(213\times10^3)\cdot V_2=n_2RT_2~~~(ii)$

Since the quantity of gas wasn't changed, $n_1=n_2=n$ . Furthermore, the temperature remains constant, so $T_1=T_2=T$ . Then, the expressions that were find are:

$nRT=808\times10^3~~~(i)\\\\
nRT=(213\times10^3)\cdot V_2~~~(ii)$

Dividing them:

$\dfrac{nRT}{nRT}=\dfrac{808\times10^3}{(213\times10^3)\cdot V_2}\\\\
1=\dfrac{808}{213\cdot V_2}\\\\
213V_2=808\\\\
V_2=\dfrac{808}{213}\\\\
\boxed{V_2\approx 3.79~L}$

7 0

3 years ago

Read 2 more answers

Bf3 can be octet or not

makvit [3.9K]

Answer:

(BH3 follows the octet rule by dimerizing, as Hadi Kurniawan AR pointed out.) For H and He, an "octet" = 2 electrons. Boron does prefer to follow the octet rule, in that it likes to form borate compounds such as NaBH4. It also is happy to form compounds with elements with lone pairs.

7 0

3 years ago