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seraphim [82]
3 years ago
8

Please help me answer this ASAP

Chemistry
2 answers:
pentagon [3]3 years ago
8 0
Top soil
Sub soil
Weathered parent material
Bedrock

This is the main four layers I know
Sorry not much
But hope you derive something from it
hoa [83]3 years ago
4 0

Answer:

h B i f M r

Explanation:

that was just my estimated guess but it seems right to me

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What is the answer to this question
kvasek [131]

Answer:

b. double bonds, triple bonds, carbon atoms,and hydrogen atoms.

Explanation:

<h2>please mark me brainliest</h2>
3 0
3 years ago
Spontaneous generation is a mistaken idea because living things:
Oduvanchick [21]
B. Are produced only by living things


7 0
3 years ago
Read 2 more answers
During a lab, you heat 1.62 g of a CoCl2 hydrate over a Bunsen burner. After heating, the final mass of the dehydrated compound
sashaice [31]
Answer is: formula of hydrate is CoCl₂· 6H₂O -c<span>obalt(II) chloride hexahydrate
</span>m(CoCl₂· xH₂O) = 1,62 g.
m(CoCl₂) = 0,88 g.
n(CoCl₂) = m(CoCl₂) ÷ M(CoCl₂)
n(CoCl₂) = 0,88 g ÷ 130 g/mol
n(CoCl₂) = 0,0068 mol.
m(H₂O) = 1,62 g - 0,88 g.
m(H₂O) = 0,74 g.
n(H₂O) = m(H₂O) ÷ m(H₂O) 
n(H₂O) = 0,74 g ÷ 18 g/mol
n(H₂O) = 0,041 mol.
n(CoCl₂) : n(H₂O) = 0,0068 mol : 0,041 mol.
n(CoCl₂) : n(H₂O) = 1 : 6.
8 0
3 years ago
What is the name of the supercontinent that existed 245 million years ago
Mandarinka [93]
I believe it was Pangaea but I could be wrong
6 0
4 years ago
Read 2 more answers
Rank the following in order of decreasing acid strength in aqueous solution: HCl, HOCl, HOBr,HOI.
I am Lyosha [343]

Answer:

A) HCl > HClO > HBrO > HIO

Explanation:

The strength of an acid is related to the acid dissociation constant (Ka). This is the equilibrium constant for an acid. The higher the Ka, the stronger the acid.

An easier way to compare the strength of acids is through their pKa, where

pKa = -log Ka

The lower the pKa, the stronger the acid.

Let's consider the following acids and their pKa values:

HCl      -7

HClO   7.54

HBrO   8.62

HIO      10.64

The order of decreasing acid strength is:

A) HCl > HClO > HBrO > HIO

6 0
3 years ago
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