Explanation is the correct answer.
Scientific investigation is the way researchers and scientists found to produce evidence to answer the questions about the world around us by using a systematic approach. Perceiving the question is the first step in any scientific investigation. <u>The second step is forming a hypothesis. This step is derived from two goals of psychology-description and explanation.</u>
Answer:
The correct answer is letter A. My friend, Greg, likes to bake cookies for the people in the office.
Explanation:
What we have in this sentence is an appositive, a word or phrase immediately following and renaming another word or phase. Our appositive here is "Greg", which is renaming the noun "friend". Since "Greg" is only giving additional but not essential information, it could easily be removed from the sentence. Notice how the sentence would still make sense: " My friend likes to bake cookies for the people in the office." Since this appositive is not a restrictive one, it should be framed by commas. That is why the best option is letter A.
Answer:
4 Na + O2 = 2 Na2O
N2O5 + H2O = 2 HNO3
2 KNO3 = 2 KNO2 + O2
2 NaN3 = 2 Na + 3 N2
CH4 + 2 O2 = CO2 + 2 H2O
C6H12O6 + 6 O2 = 6 CO2 + 6 H2O
2 KCl + F2 = 2 KF + Cl2
Mg + 2 HCl = MgCl2 + H2
Explanation:
i dont know hope this helps
I think that it's checks and balances. Haven't done it since September. Good luck!
