[Answered] What is the numerical value of (2.1 104)(4.0 10-2)? A) 8.4 B) 8.4 102 C) 8.4 10-2 D) 8.4 ...

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Author Question: What is the numerical value of (2.1 104)(4.0 10-2)? A) 8.4 B) 8.4 102 C) 8.4 10-2 D) 8.4 ... (Read 33 times)

jayhills49

Hero Member
Posts: 559

on: Aug 27, 2018

What is the numerical value of (2.1 104)(4.0 10-2)?

A) 8.4
B) 8.4 102
C) 8.4 10-2
D) 8.4 10-8
E) none of the above

Question 2

Elements that belong to the same group have the same number of valence electrons.

Indicate whether the statement is true or false

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Marked as best answer by a Subject Expert

Andromeda18

Sr. Member
Posts: 336

Reply #1 on: Aug 27, 2018

Answer to Question 1

B

Answer to Question 2

TRUE

jayhills49

Member
Posts: 559

Reply 2 on: Aug 27, 2018

Excellent

nguyenhoanhat

Member
Posts: 332

Reply 3 on: Yesterday

Wow, this really help

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