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earnstyle [38]
3 years ago
7

Please answer ASAP!!!

Chemistry
2 answers:
Nookie1986 [14]3 years ago
6 0

Answer:

A. Conducting a drug experiment which will harm lab rats

Explanation:

Karolina [17]3 years ago
4 0
A. Conducting a drug experiment which will harm lab rats
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The Tris/Borate/EDTA buffer (TBE) is commonly made as a 5x solution. What volumes of 5x TBE and water are required to make 500 m
Alexeev081 [22]

Answer:

50 ml (5x TBE) + 540 ml (water)

Explanation:

To prepare 0.5x TBE solution from 5x TBE solution we need to use the following dilution formula:

C1 x V1 = C2 x V2,   where:

- C1, V1 = Concentration/amount (start), and Volume (start)

- C2, V2 = Concentration/amount (final), and Volume (final)

* So when we applied this formula it will be:

5 x V1 = 0.5 x 500

V1= 50ml

- To prepare 0.5x we will take 50ml from 5x and completed with 450ml water and the final volume will going to be 500ml.

8 0
3 years ago
Water waves are surface waves. The energy of the waves moves
horrorfan [7]

Answer:

Explanation:

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8 0
3 years ago
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Ion compound <br> N3- CO2+
alexandr402 [8]
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3 years ago
Mechanical Advantage may be calculated using all of the following except ___.
kotegsom [21]
The only exception of calculating mechanical advantage is by multiplying resistance force by effort force. For example, in calculating the mechanical advantage of a lever, we consider its output and input forces. The equation would now be as follows:

Mechanical advantage = output force / input force
4 0
3 years ago
How many moles of Fe2O3 are in 203 g of the compound?
ruslelena [56]
The equation is :
moles=mass/molar mass
so, the mass is 203 and molar mass is 159.69 
You divide the 203 by 156.69 as the equation shows
so the moles is 1.27 mol. 
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3 years ago
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