In a chemical reaction, an iron atom became the ion Fe2+. What happened to the iron atom?
A. It lost electrons and was oxidized.
B. It lost electrons and was reduced.
C. It gained

electrons and was oxidized.
D. It gained electrons and was reduced.

A. It lost electrons and was oxidized

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Asked 8/22/2012 2:22:02 PM

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Multiply using duplation and mediation. 17 × 48 **Weegy:** 799. (More)

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Asked 8/15/2012 11:49:26 AM

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Multiply using duplation and mediation. 17 × 48 **Weegy:** Method: First number is halved while the second number is doubled.
17 can't be reduced to exact 1.
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Asked 8/15/2012 11:48:54 AM

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Multiply using duplation and mediation. 17 × 48
A. 748
B. 850
C. 816
D. 799
**Weegy:** There is no formula, but there is a two-step procedure.
I will describe the procedure, and give an example of finding the LCM of 12, 15, [ [ and 25.
(1) Find the prime factors of each of the natural numbers.
12 = 2? ? 3
15 = 3 ? 5
25 = 5?
(2) Select the largest exponent on each of the prime factors. Multiply these together.
2? ? 3 ? 5? = 300
The LCM of 12, 15, and 25 is 300. ] ] **User:** Write the numeral as a traditional Chinese numeral.
367 **User:** Write the numeral as a Hindu-Arabic numeral.
ss? **User:** Write the numeral as a Roman numeral.
503,303 **User:** Convert the base 10 numeral to a numeral in the base indicated.
503 to base 5 **Weegy:** 503 base 10 to base 5 is: 4003. [smile] **User:** 44+11 base 5 **User:** Determine whether or not the first number is divisible by the second number 775,836; 9 **Weegy:** Yes
**User:** Find the sum of the terms of the arithmetic sequence. 1, 7, 13, 19, . . ., 109 n = 19 **Weegy:** Here's a way that is easy to both do and remember. [ When you have the sum of an equally-spaced (finite) sequence of numbers, you can think of this as being similar to finding the area of a triangle.
For a triangle,
Area = (Base) (Height) / 2
= (Base) (Average Height).
If you think of the numbers of the sequence as being similar to the height of a triangle at n evenly spaced points, then the average of the sequence is (1 + 109) / 2 = 55, which corresponds to Height / 2 of the triangle. Likewise, the length of the sequence
n = 19 can be thought of as similar to the length of the triangle's base. The equation for the sum can be written as
Sum = (n) (average of sequence)
= (19) (1 + 109) / 2
= (19) (55)
= 1045.
Therefore, the correct answer 1045
] **User:** • (More)

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Asked 8/15/2012 11:53:11 AM

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Express the number in decimal notation.
5.2 × 104 User: Write an expression for the general or nth term, an, for the geometric sequence. 1, -4, 16, -64, . . . **Weegy:** The answer is 52000 (More)

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Asked 8/15/2012 12:20:43 PM

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Evaluate the expression. -38 + 11 **Weegy:** -38 + 11 = -27 (More)

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Updated 257 days ago|1/22/2015 12:55:41 PM

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