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Ne4ueva [31]
2 years ago
10

1. What is the International System of Units and its abbreviation?

Chemistry
1 answer:
GenaCL600 [577]2 years ago
7 0

Answer:

SI

modern form of the metric system

Explanation:

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H3PO4 +CaCOH)2=Ca3(PO4)2+H20<br> The equation balance
AnnyKZ [126]

Answer:

2H3PO4 +3Ca(OH) 2 = Ca3 (PO4) 2 +6H20

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3 years ago
How many Iron atoms (Fe) are represented in the following formula?
rosijanka [135]

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5

Explanation:

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2 years ago
An ant carries a morsel of food 4.26 meters along a straight path to his nest. he then turns around and follows the path back to
SVEN [57.7K]
<span>Answer: 0.00 meters

  Solution:

    Step 1: Define displacement DISPLACEMENT = a vector quantity that describes "linear or angular distance in a given direction between a body or point and a reference position."

  Step 2: Understand the question

 Assumption 1: Assume that when the ant moves 4.25 meters from its origin to its nest, it is moving in a positive direction (on a graph you would draw a line along the x-axis from its origin to +4.25).

  Assumption 2: Assume that when the ant "turns around...back to the source of food", it is moving back in the negative direction (towards the origin).

   Step 3: Analyze the question

  What is the distance between where the ant originally started and where it ended its journey?

  The ant started and ended its journey in the same place.

 While it traveled a distance of 8.52 meters (2 * 4.26 = 8.52), it's displacement is actually 0.00 meters (4.26 + (-4.26) = 0.00)

  Therefore, the answer is 0.00 meters</span>
5 0
3 years ago
The general electron configuration for atoms of all elements in group 5a is
stiks02 [169]
Well the elements would be N, P, As, Sb, and Bi. Their electron configuration would be N= [He] 2s2 2p3, P= 1s2 2s2 2p6 3s2 3p3, As= [Ar] 3d10 4s2 4p3, Sb=  Kr 4d10 5s2 5p3, and Bi= Xe 4f14 5d10 6s2 6p3.<span />
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3 years ago
Which of the following is not harmed by acid rain?
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B) Glass Windows..... Hope it helps :)
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