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Sauron [17]
4 years ago
10

11 points In your lesson today you learned that items can be dissolved faster when

Chemistry
1 answer:
algol [13]4 years ago
4 0

Answer:

The answer is D.) All of the above

Explanation:

Hope this helps :))

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Select the correct answer.
Illusion [34]

Answer: the new force will be 1/9 of the original force

Explanation: Please see attachment for explanation

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3 years ago
(((NEED ANSWER QUICK!!!)))<br><br> Which is the stronger conjugate base, CN- or OCN-? Explain
Shkiper50 [21]

Answer:

The stronger conjugate base will be the weaker acid; i.e., the acid with the smaller Ka-value.

Explanation:

Given conjugate base CN⁻ => weak acid => HCN =>  Ka =4.9 x 10⁻¹⁰

Given conjugate base OCN⁻ => weak acid=> HOCN => Ka = 3.5 x 10⁻⁴

Ka(HCN) << Ka(HOCN) => CN⁻ is a much stronger conjugate base than OCN⁻

6 0
3 years ago
An ax is used to chop wood. The metal part chops through the wood, pushing it apart into two smaller sections. which simple mach
Sati [7]
The <span>simple machine found on the head of the  ax is </span>Wedge. A wedge is an inclined plane that can be moved. When an ax is used to split wood, the ax handle exerts a force on the blade of the axe, which is the wedge. That force pushes the wedge down into the wood. The wedge in turn exerts an output force splitting the wood in two. 
3 0
4 years ago
Question 5 Multiple Choice Worth 1 points)
Ulleksa [173]
Z is the lowest frequency wave
3 0
3 years ago
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Tooth enamel is ca5(po4)3(oh). calculate the percent composition of the elements present.
Mama L [17]
We shall find the molar mass first.  
Ca5(PO4)3(OH) = (40 * 5) + 3 (31 + 4(16)) + 16 + 1 = 200 + 285 + 17 = 485 + 17 = 502. 
Percent of Calcium = 200/ 502 * 100 = 39.8%
 Percent of Phosphorus = 91/502 * 100 = 18.1%
 Percent of Hydrogen = 1/502 * 100 = 0.19%
 Percent of Oxygen = 100 - (39.8 + 18.1 + 0.19) = 41.91%

8 0
3 years ago
Read 2 more answers
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