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Orlov [11]
3 years ago
15

How many structures are possible for a trigonal bipyramidal molecule with a formula of ax3y2?

Chemistry
1 answer:
ryzh [129]3 years ago
4 0
Check the attached file for the answer.

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When performing physical exercise, the heart rate, by what percentage can it be increased?
Dafna11 [192]

Answer:

10

Explanation:

I did that already. You got beo

4 0
3 years ago
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Suppose that the physical properties of two stars are identical in every way --- for example, same distance, same mass, same tem
larisa [96]

Answer:

By measuring it's Radical velocity using Doppler Phenomenon...

Explanation:

It is done by measuring the absorption spectrum produces by a star as a result of measuring Doppler's relative wavelength. The star with the lower speed must have lower absorption spectrum extent as compared to the faster one.

4 0
3 years ago
what is the concentration (in %v/v)) of the following solutions? a. 25 mL of ethanol is diluted to a volume of 150 mL with water
fenix001 [56]
The symbol %v/v means percent by volume. Assuming there is no volume effects when these substances are mixed, we calculate as follows:

% v/v = (25 mL ethanol / 25 mL + 150 mL ) x 100
%v/v = 14.29 mL ethanol / mL solution

Hope this answers the question.
8 0
3 years ago
Classify each of the statements below as pertaining to viscosity or osmolarity.
Yuliya22 [10]
Viscosity is related to the parallel shear force acted by the fluid. In lay man's term, viscosity is the ease of how the fluid flows. The faster the flow is, the lower the viscosity (and vice versa). On the other hand, osmolarity pertains to the concentration of a component in a mixture expressed in number of solute particles per liter of the mixture.
7 0
2 years ago
Why does the colour of copper sulphate solution change when an iron nail is dipped in it?
sineoko [7]

Answer:

bcoz iron displaces copper and form the solution iron sulfide

Explanation:

when we dip iron nail in copper sulfate solution,then iron starts reacting with the solution and due to displacement reaction between them iron is stronger metal than copper so it displaces copper and form iron sulfide:

CuSO4+3Fe---->Fe3SO4+Cu

4 0
3 years ago
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