Tutor profile: Shawn J.
Subject: Basic Chemistry
Which of the following has a positive charge? A) Electron B) Neutron C) Atom D) Proton
The answer is D) Proton Electrons have a (-) charge, Neutrons have no charge and Atoms charge depends on a multitude of factors
Which nucleuotide is found in RNA but not DNA? A) Adenine B) Uracil C) Guanine D) Cytosine
The answer is B) Uracil
Solve the following equation for "x" 3x+4=31
1) To solve you first need to isolate the term that contains the variable, in this case that term is '3x'. 2) So we first subtract 4 from both sides to yield 3x = 27 3) Then we divide both sides by '3' to isolate x leaving us with x = 9 4) We can check our answer by plugging 9 in for 'x' in the original equation. 5) 3*9 + 4 = 31 6) Our final answer is x = 9
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