Answer:
3.69 g
Explanation:
Given that:
The mass m = 325 g
The change in temperature ΔT = ( 1540 - 165)° C
= 1375 ° C
Heat capacity 
= 0.490 J/g°C
The amount of heat required:
q = mcΔT
q = 325 × 0.490 × 1375
q = 218968.75 J
q = 218.97 kJ
The equation for the reaction is expressed as:
Then,
1 mole of the ethyne is equal to 26 g of ethyne required for 1544 kJ heat.
Thus, for 218.97 kJ, the amount of ethyne gas required will be:
= 3.69 g
Gold is an element. Water is made from hydrogen and oxygen, and silicon dioxide is an oxide of silicon, consisting of <span> two oxygen atoms and one silicon</span>
Answer:
none of the above
Explanation:
because all of them are unstable
<h3>
Answer:</h3>
The rate of sea level change is the fastest
<h3>
Explanation:</h3>
To determine the process which is the fastest we need to determine the rate at which each occurs in meters per year.
Rate of sea level changes is 10 m per 1,000 years
Therefore, the rate of sea level change = 10 m ÷ 1000 years
= 0.01 m/yr
Regional erosion occurs at 2 m per 1,000 years
Therefore, Rate in meters per seconds = 2 m ÷ 1,000 years
= 0.002 m/year
Uplift occurs at a rate of 0.1 m per 1,000 years
Thus, rate in meters per seconds = 0.1 m ÷ 1,000 years
= 0.0001 m/yr
Therefore, the rate of sea level change is the fastest at a rate of 0.01 meter/year
