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Naya [18.7K]
4 years ago
12

The standards used to make a judgment or decision when designing a product are called _______. A. prototypes B. criteria C. desi

gns D. investigations
Chemistry
2 answers:
Elenna [48]4 years ago
7 0
B. criteria because it's a principal or standard by which something may be judged or decided  <span />
Fittoniya [83]4 years ago
5 0

Answer:

B is the correct answer

Explanation:

I just took the test on edge :-)

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Which one of the following atoms has the largest radius? Ова Осо OCa
RUDIKE [14]

Answer:

Ba

Explanation:

<u>The elements  Calcium ( Ca ) and Cobalt ( Co ) , are both present in the same period , and across the period the atomic radius decreases from left to right , since , the atomic number increases , so the electrons increases , which in turns increases the effective nuclear charge , and hence the size decreases , </u>

Therefore ,

Calcium will have bigger atomic radii as compared to Cobalt .

Now,

<u>The elements Barium ( Ba ) and Calcium ( Ca ) are , both are present in the same group , and down the group , atomic radii increases , since , as going down the group , the atomic number increase , so the shells increases , hence the size increases .</u>

Therefore , the atom with the largest radii is Barium .

7 0
3 years ago
A compound is 44.7% P and the rest O. Determine its emperical formula.
svet-max [94.6K]

Answer:  

P₅O₁₂

<em>Explanation:  </em>

Assume that you have 100 g of the compound.  

Then you have 44.7 g P and 55.3 g O.  

1. Calculate the <em>moles</em> of each atom  

Moles of P  = 44.7 × 1/30.97 = 1.443 mol Al  

Moles of O = 55.3 × 1/16.00 = 3.456 mol O  

2. Calculate the <em>molar ratios</em>.  

P: 1.443/1.443 =   1  

O: 3.456/1.443 = 2.395

3. Multiply by a number to make the ratio close to an integer

P:  5 × 1         =  5

O: 5 × 2.395 = 11.97

3. Determine the <em>empirical formula </em>

Round off all numbers to the closest integer.  

P:   5

O: 12

The empirical formula is <em>P₅O₁₂</em>.  

6 0
3 years ago
Precipitation tends to be _______ on the _______ side of a mountain because water vapor _______ as it rises there.
Sergio039 [100]
Precipitation tends to be HIGHER on the WINDWARD SIDE of the a mountain because water vapour CONDENSES as it rises there. 
There are two sides to every mountain, the windward and the leeward sides. The windward side experience more rainfall while the leeward side is drier and warmer. 
4 0
3 years ago
An element has the electronic configuration 1s22s22p63s23p63d104s24p65s2. identify the element.
o-na [289]
The answer is Strontium
8 0
3 years ago
Since the moon is so small in size in relation to the earth, only a small area of planet earth will see a:
den301095 [7]

Answer:

Solar eclipse

Explanation:

5 0
3 years ago
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