Answer:
Mass of copper vaporized is 52,8g
Explanation:
The heat of vaporization (ΔHvap) is defined as the amount of energy you require to transform a quantity of liquid in gas. The formula is:
Q = ΔHvap×mass
Where Q is the amount of heat and mass is the mass of the compound.
If you required 254 kJ to vaporize a sample of copper which heat of vaporization is 4,81 kJ/g:
254kJ = 4,81 kJ/g × mass of copper
<em>52,8g = mass of copper</em>
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I hope it helps!
Answer:
Salt Water
Explanation:
A substance is homogeneous if its composition is identical wherever you sample it - it has uniform composition and properties throughout. Homogeneous is Latin for the same kind. If a substance is not homogeneous, it is said to be heterogeneous.
The process of primary sequencing can take hundreds, if not thousands of years. On the contrary, the process of second succession could re-establish the communities of ecological peaks in as little as 50 years.
Not from google thank me later
Answer:
I think the answer is y-z>0
Lead can cause
D.) brain damage
Explanation:
Lead poisoning is a sort of metal poisoning generated by lead in the body. The brain is the most sensitive. Symptoms may comprise abdominal pain, illness, headaches, irritability, thought problems, inability to have children, and tingling in the hands and feet. It causes almost 10% of the intelligent weakness of otherwise unknown cause also can result in behavioral problems. Some of the outcomes are strong. In severe cases, anemia, convulsions, coma, or death may occur.
