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Artist 52 [7]
3 years ago
11

Valerie creates a model using three different rocks. The rocks are classified as igneous, metamorphic, and sedimentary.

Chemistry
2 answers:
BaLLatris [955]3 years ago
6 0
Formation

I remember having this question on a quiz a while back
natita [175]3 years ago
4 0

Answer:

its B

Explanation:

trust me on this one

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How many mass would be contained in 0.01mol of NaOH
8_murik_8 [283]

Answer:

∴ No. of atoms in 0.01 moles of NaOH = 6.02×10

23

×0.01=6.02×10

21

3 0
2 years ago
What happens to an object as its thermal energy increases?
aleksandr82 [10.1K]

Answer:

It heats up

Explanation:

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3 years ago
The number of electrons in n=1 and n=2 shells of aluminum are
harina [27]

Answer:

n=1 holds two electrons and n=2 holds eight electrons.

Explanation:

Hello

In this case, since the atomic number of aluminum is 13, its electron configuration is:

Al^{13}: 1s^2,2s^2,2p^6,3s^2,3p^1

In such a way, we can see that the level n=1 is filled with two electrons since the subshell s is able to hold two electrons and the level n=2 is also filled but with eight electrons as s holds two whereas p holds 6. Moreover, n=3 is holding three electrons.

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5 0
3 years ago
Cyclopropene decomposes to propene when heated to 500 C, calculate rate constant for the first order reaction 0 min 1.48 mmol/L
Dmitry_Shevchenko [17]

Answer:

k = 0.0306 min-1

Explanation:

The table is given as;

Time, Concentration

0 1.48

5 1.27

10 0.98

15 0.84

The integrated rate law for a first order reaction is given as;

ln [A] = -kt + ln [Ao]

where;

[A] = Final Concentration

[Ao] = Initial Concentration

k = rate constant

t = time

In the table, taking the first two sets of values;

t = 5

k = ?

[Ao]  = 1.48

[A] = 1.27

Inserting into the equation;

ln(1.27) = - k (5) + ln(1.48)

ln(1.27)  - ln(1.48) = -5k

-0.1530 = -5k

k = -0.1530 / -5

k = 0.0306 min-1

6 0
3 years ago
What is an example of a neutral mutation? a frog born with white skin a person's inability to break down sugar a red flower with
Naya [18.7K]

Answer:

I think a red flower with one part colored yellow

Explanation:

8 0
3 years ago
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