when raymond observes certain natural phenomena, he often forms ideas about their causes and effects. suppose that raymond surmises that
leaves change color in autumn due to scarcity of sunlight. in order to test whether his idea is accurate, he must first construct a falsifiable
that defines a clear relationship between two variables. raymond's next step is to
would isolate and test the relationship between the two variables. this task can be pretty daunting because raymond will need to identify and
that
eliminate any
variables that could confuse test results.

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

mark brainliest and have a great day!

yes it is balanced

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.