Answer:
How much heat energy required to convert following?
How much heat energy, in kilojoules, is required to convert 47.0 g of ice at -18.0 C to water at 25.0 C ?
Specific Heat of Ice - 2.09 j/g * c
This is how I did it and the answer is wrong...Please check and correct me
Q = m * Cice * Change in Temp
Q = (47.0 g)(2.09 J/g*c)(43) = 4222.6 J * 0.001 kj / j = 4.22 kj
The first basic metals on the periodic table are alkali metals.
Answer:

Explanation:
Hello!
In this case, it is possible to treat this problem by using a proportional factor which indicates one iron nail equals 2.0 grams:

Now, for an amount of 6.022x10²³ nails, the corresponding mass will be:

Best regards!
Answer:
AB
Explanation:
When combining two elements in different groups, you would just put them together unless you have two or more of each element