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2 years ago

Simplify: (100 m)/(26 s)

Chemistry

2 answers:

podryga [215]2 years ago

4 0

100m/26s=50m/13s

50m/13s=3.846m/s

Ray Of Light [21]2 years ago

3 0

Answer: The correct answer is 3.846 m/s

Explanation:

We are given an expression:

(100 m)/(26 s)

The '/' symbol represents the division operation. The units are treated in the same way as the numerical values.

Evaluating the value of the expression, we get:

$\Rightarrow \frac{100m}{26s}=3.846m/s$

Hence, the correct answer for the given expression is 3.846 m/s

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1 year ago

How much heat is required to raise the temperature of 670g of water from 25.7"C to 66,0°C? The specific heat

inna [77]

Answer:

Explanation:

q= mc theta

where,

Q = heat gained

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2 years ago

If Co(NH3)63+ has a λmax at 440 nm, calculate ΔE for the complex. A) 2.72 x 10-4 kJ/mol B) 4.52 x 10-2 kJ/mol C) 2.72 x 10 2 kJ/

riadik2000 [5.3K]

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Explanation:

To calculate the energy of the complex, we use the equation given by Planck which is:

$\Delta E=\frac{N_Ahc}{\lambda}$

where,

$\lambda$ = Wavelength of the complex = $440nm=4.40\times 10^{-7}m$ (Conversion factor: $1m=10^9nm$ )

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$\Delta E$ = energy of the complex

Putting values in above equation, we get:

$\Delta E=\frac{6.022\times 10^{23}\times 6.624\times 10^{-34}\times 3\times 10^8}{4.40\times 10^{-7}}\\\\\Delta E=2.72\times 10^{5}J=2.72\times 10^2kJ$

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2 years ago

Write an equation for the formation of bf3(g) from its elements in their standard states.

blagie [28]

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7 0

2 years ago