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Montano1993 [528]
3 years ago
6

This is a graded Quiz and I need all of the answers to be right but I am not sure so I need help this is a 3.08 science Quiz and

it's do today. Thank you for the help
Question 1 (1 point)

True or False

Intrusive igneous rocks have fine-grained crystals.

Tue
False


Question 2 (1 point)

True or false

Igneous rocks are formed from cooling and hardening magma or lava.

True
False


Question 3 (1 point)

True or false

Metamorphic rocks are formed when sediments harden it to rocks.

True
False


Question 4 (1 point)

True or false

Lithification is the process of converting sediments into solid rock through compaction and cementation.

True
False


Question 6 (1 point)

What type of rock forms when heat and pressure change existing rocks WITHOUT melting them?


Metamorphic

Sedimentary

Igneous



Question 7 (1 point)

Once a metamorphic rock, always a metamorphic rock. cannot change from one type of rock to another

True
false


Question 8 (1 point)

The rock cycle has a definitive beginning and end

true
false


Question 9 (1 point)


Foliation occurs in sedimentary rocks

True
false


Some of the words are not spelled right and that's all my teachers fault i'm sorry.
Also if you are the first to answer and you answered all the of the questions and answered them right you will get marked brainly whatever it's called just please answer these all true fully and right and not just pick one for the points thank you bye
Chemistry
1 answer:
Setler79 [48]3 years ago
8 0

Answer:

1 true

Explanation:

bcz it is true

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NaOH  + H2SO4 =
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3 0
3 years ago
A) Find the gas speed of sulfur dioxide at 100.0 degrees Celsius? ______________
gtnhenbr [62]

a. 381.27 m/s

b. the rate of effusion of sulfur dioxide = 2.5 faster than nitrogen triiodide

<h3>Further explanation</h3>

Given

T = 100 + 273 = 373 K

Required

a. the gas speedi

b. The rate of effusion comparison

Solution

a.

Average velocities of gases can be expressed as root-mean-square averages. (V rms)  

\large {\boxed {\bold {v_ {rms} = \sqrt {\dfrac {3RT} {Mm}}}}

R = gas constant, T = temperature, Mm = molar mass of the gas particles  

From the question  

R = 8,314 J / mol K  

T = temperature  

Mm = molar mass, kg / mol  

Molar mass of Sulfur dioxide = 64 g/mol = 0.064 kg/mol

\tt v=\sqrt{\dfrac{3\times 8.314\times 373}{0.064} }\\\\v=381.27~m/s

b. the effusion rates of two gases = the square root of the inverse of their molar masses:  

\rm \dfrac{r_1}{r_2}=\sqrt{\dfrac{M_2}{M_1} }

M₁ = molar mass sulfur dioxide = 64

M₂ =  molar mass nitrogen triodide = 395

\tt \dfrac{r_1}{r_2}=\sqrt{\dfrac{395}{64} }=\dfrac{20}{8}=2.5

the rate of effusion of sulfur dioxide = 2.5 faster than nitrogen triodide

4 0
3 years ago
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