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3 years ago

Metamorphic rocks with a non-foliated texture show metamorphic change that involves ____.

Chemistry

1 answer:

matrenka [14]3 years ago

8 0

Answer:

b. growth in the size of the mineral grains

Explanation:

Non-foliated texture shown by a metamorphic change is depicted by growth in the size of the mineral grains.

Examples of non-foliated metamorphic rocks are quartzite and marble.
In these metamorphic rocks, mineral grains are not aligned with their long axis.
Non-foliated texture occurs under high temperature and low pressure conditions.
As minerals are able to grow, the size can be used to show a metamorphic change.

You might be interested in

Calculate ΔH⁰298 (in kJ) for the process P(s) + 5/2 Cl2(g) → PCl5(g) from the following information.

Viefleur [7K]

Answer:

$\Delta H_{298}^{0}$ for the process is -375 kJ

Explanation:

Given reaction is a combination of the two given elementary steps.

Summation of change in standard enthalpy ( $\Delta H_{298}^{0}$ )of the two elementary reactions give $\Delta H_{298}^{0}$ of the reaction $P(s)+\frac{5}{2}Cl_{2}(g)\rightarrow PCl_{5}(g)$ .

$P(s)+\frac{3}{2}Cl_{2}(g)\rightarrow PCl_{3}(g)$ ...... $\Delta H_{1}=-287kJ$

$PCl_{3}(g)+Cl_{2}(g)\rightarrow PCl_{5}(g)$ ...... $\Delta H_{2}=-88kJ$

-----------------------------------------------------------------------------------------------------

$P(s)+\frac{5}{2}Cl_{2}(g)\rightarrow PCl_{5}(g)$

$\Delta H_{298}^{0}$ = $\Delta H_{1}+\Delta H_{2}=-287kJ-88kJ=-375kJ$

3 0

3 years ago

How many moles are in 35.5 g of aluminum?

Blizzard [7]

Answer:

1.316 moles of Aluminum

Explanation:

The molar mass for Al is 26.98 g/mol

$\frac{35.5g}{26.98g/mol} =1.316 moles Al$

3 0

3 years ago

For which of the following reactions is S° > 0.

lisabon 2012 [21]

The entropy of the given reactions increases (S° > 0):

2C2H6(g) + 7O2(g) ----> 4CO2(g) + 6H2O(g) ---> S° > 0.
NH4Cl(s) ----> NH3(g) + HCl(g) ---> S° > 0.

<h3>What is entropy?</h3>

Entropy measure how disordered a system is. It a measure of how dispersed or random the total energy of a system is. The symbol for entropy is S.

A system in which entropy increases is one in which S° > 0.

The entropy of a system decreases when S° < 0.

Entropy of a system increases (S° > 0) if any change results in an increase in temperature, increase in number of molecules, or an increase in volume.

Considering the given systems, the entropy changes is as follows:

2C2H6(g) + 7O2(g) ----> 4CO2(g) + 6H2O(g) ---> S° > 0.
2CO2(g) + N2(g) ---->2CO(g) + 2NO(g) --> no change
2N2(g) + O2(g) -----> 2N2O(g) ---> decreases
S (s,rhombic) + 2CO(g) ----> SO2(g) + 2C (s,graphite) ---> no change
NH4Cl(s) ----> NH3(g) + HCl(g) ---> S° > 0.

In conclusion, an increase in volume and moles of substances results in entropy increase.

Learn more about entropy at: brainly.com/question/26691503

#SPJ1

8 0

2 years ago

what would the total pressure of a mixture of fluorine, chlorine, and bromine gases be if the partial pressure are 2.20 atm, 6.7

astraxan [27]

Answer:

The total pressure would be 8, 93 atm

Explanation:

We apply Dalton's laws, where for a gaseous mixture, the total pressure (Pt) is the sum of the partial pressures (Px) of the gases that make up the mixture.

Pt= Pxa + Pxb+ Pxc....

Pt=2, 20 atm+ 6, 70 atm+ 0,03 atm= 8, 93 atm

4 0

4 years ago

Not sure if my answers are even correct. i am so confused

Mamont248 [21]

Answer:

#3 is the percentage for sodium i believe and 4 is right

Explanation:

7 0

3 years ago