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Shalnov [3]
3 years ago
5

I need help with all 4 please help

Chemistry
1 answer:
damaskus [11]3 years ago
4 0
Get the app socratic
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1. What mass of Mgo will I make from 48 g of Mg?<br> 2Mg + O2 + 2MgO
statuscvo [17]

Answer:

80.6 g

Explanation:

MgO=24.3+16=40.3 g

48.6/24.3= 2 moles

64/2x16= 2 moles

2x40.3= 80.6g

8 0
2 years ago
Mass defect is associated with: nuclear fusion nuclear fission radioactive decay mass lost by nuclear collisions
Kay [80]
I would say mass lost by nuclear collisions. The mass defect is the mass difference between the mass of an atomic nucleus and the sum of the mass of its constituent particles. It equals the energy given off in the formation of the nucleus.
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3 years ago
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Stote 4 ways in which excesine alcohol conscuption is<br>harmful to humans​
Georgia [21]

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An addiction could occur, maybe an overdose?, this could lead to death and maybe you would do unreasonable things which could get you fined or arrested.

Explanation:

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3 years ago
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Under what conditions is the change in internal energy, δe rxn , equal to the heat evolved in a chemical reaction?
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δ<span>E = δq + δw</span>

where δ<span>E is the i change in internal energy, </span>

<span>δq is the amount of thermal energy added to the system from the surroundings </span>

<span>δw is the l work done *on* the system *by* the surroundings. </span>

<span>For a system only undergoing expansion work,
δw = -p</span>δ<span>V, so: </span>

δE = δq - p δ<span>V </span>
when δV = 0, then δe=δq
4 0
3 years ago
What is mass tbh pls he;p
Hoochie [10]

Answer:

how much matter is in an object

Explanation:

7 0
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