Answer:
Conservative Properties of Seawater
Explanation:
The Conservative properties of seawater refer to those properties that cannot be altered due to the occurrence of physical, chemical and biological processes, over the large oceanic bodies. This typically comprises properties such as the temperature and also there is a high concentration of both sodium and chloride ions, which increases the salinity of the oceans.
These conservative properties occur in almost a fixed amount, or it most probably changes at a very slower rate through time. They can be considered to have a long residence time.
Answer:
b
Explanation:
because i guessed on this cuz i dont know the answer
Answer: "Calculate the enthalpy of formation of butane, C4H10, using the balanced chemical equation and tables displaying information about enthalpy of formation/combustion. Write out the solution according to Hess's law." That's all I'm given. The key says that the answer is -125.4 kJ. C4H10 + 6.5 O2 = 4CO2 + 5 H20 The heat of combustion for one mole of butane is -2877 K. Heats of formation from table C02 = -393.5 Kj/mole, H20 (g) -241.8 Kj/mole. Heat of combustion of butane = sum heats of formation products minus heats of formation reactants -2877 Kj = 4(-393.5Kj) + 5(-241.8Kj) minus heat or enthalpy of formation butane.
The enthalpy formation oxygen an element is assigned a value of zero.
-2877 Kj = -1582 Kj + -1209 Kj minus X
-2877 = - 2791 Kj minus X
X = -86 Kj. The heats of formation for various compounds vary a little from table to table, so this does not quite agree with your answer.
This is just an example
Answer:
Generally, the first ionisation energy increases along a period. But there are some exceptions one which is not an exception
Answer: An atom is the basic unit of a chemical element.
An isotope is each of two or more forms of the same element that contain equal numbers of protons
Mass number is the total number of protons and neutrons in a nucleus.
Explanation:
An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. An isotope is each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.
Mass number is the total number of protons and neutrons in a nucleus.
