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2 years ago

As magma cools how are some of the minerals affected by earths magnetic field

1 answer:

8 0

The only effect that it has is when the magma is cooling (so if it's on the surface, it's now lava), any magnetic elements will align their dipoles with the north and south poles of the magnetic field.

Hope this helps!

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(select all that apply.) the elements most often found in organic molecules are _____.

Arturiano [62]

C. Carbon. H. Hydrogen. N. Nitrogen. O. Oxygen. P. Phosphorus. S. Sulfur.

7 0

2 years ago

Read 2 more answers

Wht is this called N which chain does it belong

german

Answer:

national

Explanation:

I don't understand, I'm sorry

5 0

2 years ago

Codeine C18H21NO3 is a weak organic base. A 5.0 x 10^-3 M solution of codeine has a pH of 9.95. Calculate the value of Kb for th

arsen [322]

Answer:

Kb = $4.45\times10^{-7}\ mol/L$

$p^{Kb}=6.35$

Explanation:

For a weak organic base, the formula to find $p^{OH}$ is given by:

$p^{OH}=p^{K_b}+\log c$

where c is the concentration of base.

Here c= $5\times10^{-3}\ M$

$p^{H}=9.95\\p^{OH}=14-p^{H}=14-9.95=4.05$

Substituting the above values in the formula,we get:

$p^{k_b}=p^{OH}-\log c\\p^{k_b}=4.05-\log (5\times10^{-3})\\p^{K_b}=6.35\\K_b=$antilog 6.35=4.45\times10^{-7}\ mol/L$

Hence:

Kb = $4.45\times10^{-7}\ mol/L$

$p^{Kb}=6.35$

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2 years ago

Can someone plz help me with this one problem plzzzzz I’m being timed!!!

poizon [28]

Answer:

answer : the penguins do

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2 years ago

Classify each of the following as a combination, decomposition, single replacement, double replacement, or combustion reaction:

hjlf

Answer:

1) single replacement

2) combustion reaction.

3) double replacement reaction

4) combination reaction

5) decomposition reaction

Explanation:

Chemical equation:

Fe₂CO₃ + 3C → 2Fe + 3CO

The given reaction is single replacement reaction. In this reaction carbon react with Fe₂CO₃ and replace the iron from CO₃²⁻ and form free iron and carbon monoxide.

Chemical equation:

C₂H₄ + 3O₂ → 2CO₂ + 2H₂O

The given reaction is combustion reaction. In which ethene burn in the presence of oxygen form carbon dioxide and water.

Chemical equation:

Fe₂O₃ + 6HCl → 2FeCl₃ + 3H₂O

The given reaction is double replacement reaction. In which anion and cation of both reactants exchange with each others.

Chemical equation:

2Al + 2Br₂ → 2AlBr₃

The given reaction is combination reaction in which aluminium and bromine combine to form aluminium bromide.

Chemical equation:

C₆H₁₂O₆ → 6C + 6H₂O

The given reaction is decomposition reaction in which glucose molecule decompose to give water and carbon.

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2 years ago