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hichkok12 [17]
2 years ago
12

A) State the Law of Conservation of Matter.​

Chemistry
1 answer:
Mariulka [41]2 years ago
4 0

Answer:

matter can either be created nor destroyed but can be transmitted fromone state to another state

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If one wants 100g of Ag, how much ag2o is needed?
KonstantinChe [14]

Mass Ag₂O needed = 107.416 g

<h3>Further explanation</h3>

Given

100 g Ag

Required

mass of Ag2O

Solution

Proust stated the Comparative Law that compounds are formed from elements with the same Mass Comparison so that the compound has a fixed composition of elements

mass of Ag in Ag2O :

= ((2 x Ar Ag)/molar mass Ag2O )x mass Ag2O

\tt mass~Ag=\dfrac{2.Ar~Ag}{MW~Ag_2O}\times mass~Ag_2O

Ar Ag : 107,8682 g/mol

MW Ag₂O = 231,735 g/mol

Input the value :

mass Ag₂O=(mass Ag x MW Ag₂O) : (2 x Ar Ag)

mass Ag₂O = (100 g x 231,735 g/mol) : ( 2 x 107,8682 g/mol)

mass Ag₂O = 107.416 g

3 0
2 years ago
How many atoms are in 3.47 moles of C2H2? Please show work.
vaieri [72.5K]

Answer:

2.08×10^24 atoms

Explanation:

set up a mole to atom ratio:

3.47moles 1 mole

------------------ = ----------------------------

x atoms 6.02×10^23 atoms

cross multiply:

3.47 mole × 6.02 × 10^23 = 2.08×10^24 atoms

8 0
3 years ago
The net ionic eq for Br ^+2 changes onto BrCrO4 in the presence of
mestny [16]

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7 0
2 years ago
In one to two sentences, identify and describe the processes that must happen for sand to eventually become metamorphic rock.
max2010maxim [7]

Answer:

when sediments harden, extreme pressure increase the temperature and then take time to alter to metamorphic rocks. <3~

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2 years ago
Which statement describes how heat flows from the coffee to the part of the spoon in the coffee?
lozanna [386]

Answer:

Heat flows from the coffee to the spoon through conduction

Explanation: I took did the lab assignment

8 0
3 years ago
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