Question and answer
The equation for the chemical reaction shown is not balanced. What number should replace the question mark to balance this equation? 2KBr + Pb(NO3)2 2KNO3+ PbBr2
The balanced equation form is 2KBr + Pb(NO3)2 = 2KNO3 + PbBr2 through which you can tell the coefficient on each participant.
Question|Asked by Mabelangelo
Asked 3/17/2014 11:02:07 AM
Updated 3/17/2014 8:00:30 PM
1 Answer/Comment
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The balanced equation form is 2KBr + Pb(NO3)2 = 2KNO3 + PbBr2 through which you can tell the coefficient on each participant.
Added 3/17/2014 8:00:30 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [3/17/2014 8:12:54 PM]
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Questions asked by Mabelangelo
Between what two consecutive integers does 379 lie?
Question|Asked by Mabelangelo
Not Answered
Updated 3/17/2014 8:07:04 PM
1 Answer/Comment
379 lies between 378 and 380.
Added 3/17/2014 8:06:48 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [3/17/2014 8:12:40 PM], Rated good by jeifunk
Which set of integers is not a Pythagorean triple? A. 9, 40, 41 B. 11, 60, 61 C. 15, 18, 21 D. 20, 21, 29
Weegy: C.15, 18, 21 is not a Pythagorean triple. (More)
Question|Asked by Mabelangelo
Expert Answered
Updated 3/14/2014 9:43:18 PM
0 Answers/Comments
A square window has a side length of 40 inches. What is the approximate length of the diagonal of the window?
Question|Asked by Mabelangelo
Expert Answered
Updated 4/22/2014 11:13:06 AM
1 Answer/Comment
Pythagora's Theorem:

Diagonal² = 2*side²;
= 2*40*40;
= 3200;

Diagonal = sqrt(3200);
= 56.57 inches;

The approximate length of the diagonal of the window is 56.57 inches.
Added 4/22/2014 11:13:06 AM
This answer has been confirmed as correct and helpful.
Confirmed by debnjerry [4/22/2014 11:15:12 AM]
A banner is in the shape of a 30°–60°–90° triangle. The shorter leg has a length of 30 inches. What is the approximate length of the longer leg? A. 15 inches B. 42 inches C. 52 inches D. 60 inches
Question|Asked by Mabelangelo
Not Answered
Updated 3/21/2014 1:02:16 AM
1 Answer/Comment
A banner is in the shape of a 30°–60°–90° triangle. The shorter leg has a length of 30 inches. The approximate length of the longer leg is C. 52 inches.
Added 3/21/2014 1:02:16 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [3/21/2014 1:15:40 AM]
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