Lead II carbonate decomposes to give lead II oxide and carbon dioxide: grams of lead II oxide will be produced by the decomposition of 7.50g of lead II carbonate. BTW.. This is the third time I ask this question despite the problem solved and answer posted the answer gets deleted before I can view it by another person ..why, please help.

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.

(b) which contains higher levels of vitamin b, oranges or spinach?

explanation:

you can eliminate a, c, and d because they are questions based on opinions.

answerambulatory;