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OLga [1]
3 years ago
11

What aspect of a maple tree might be studied in chemistry

Chemistry
1 answer:
Elza [17]3 years ago
6 0

Comparing the matter that makes up its different parts.

Hope this helps! ;)

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What is the percent by mass of water in Na2SO4 • 10H2O?
bulgar [2K]
We determine the percent by mass of water in the compound by dividing the mass of  water by the total mass. The total mass of Na2SO4.10H2O is equal to 322 g. The mass of water is 180 g. 
       
                    percent by mass of water = (180 / 322)*(100 %) = 55.9%
5 0
3 years ago
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What can be used to determine the absolute age of two rocks? *
Aneli [31]

Answer:Ithink erosion cuz if we can tell how long ago it eroded we can see how old it is

Explanation:

6 0
3 years ago
The weak base ionization<br> constant (Kb) for HCO3 is<br> equal to:
hammer [34]

Weak bases are alkaline solution that does not get completely dissociated. The dissociation constant will be the ratio of the concentration of the products to the reactants.

<h3>What is a weak base ionization constant?</h3>

The weak base ionization constant is the equilibrium constant that is given as the division of the products of the ionization to the concentration of the reactants.

The reaction for HCO₃ is given as:

HCO₃⁻ + OH⁻ ⇄ CO₃²⁻ + H₂O

The value of Ka for the given reaction will be:

Ka = [CO₃²⁻][H₂O] ÷ [HCO₃⁻ ][OH⁻]

Therefore, the Ka of the weak carbonic acid is given as the ratio of the concentration of the products to the reactants.

Learn more about the weak ionization constant here:

brainly.com/question/27200344

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8 0
2 years ago
Which choice tells how energy is transferred between the atmosphere and hydrosphere? runoff and condensation precipitation and e
4vir4ik [10]

Answer:

correct answer is  precipitation and evaporation

Explanation:

solution

correct answer is  precipitation and evaporation  because in the evaporation process of water cycle, the atmosphere is directly interact with the hydrosphere as water changes from liquid into vapor or  gas form

and Precipitation is the process when water that may be in the form of snow or hail or rain etc that is fall from the cloud into the open sky

so correct answer is  precipitation and evaporation

8 0
3 years ago
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How many moles are in iron
Natalka [10]
Mole weighs about 55.845 g. One mole of any element equals it's atomic mass in grams.. idfk if this helps but hope it does lol


8 0
3 years ago
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