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MrMuchimi
3 years ago
9

Given the unbalanced equation: PbCl₂ + Na₂CrO₂ ---> PbCrO₂ + NaCl. When properly balanced, the sum of the balancing coefficie

nts is
A. 2
B. 3
C. 4
D. 5
Chemistry
1 answer:
Veronika [31]3 years ago
3 0

Answer:

A. 2

hope this helps :)

if you need an explanation let me know!!

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kenitic energy

Explanation:

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The energy in eV for light with a wavelength of 6250 angstroms is _. Note - there are 1.6 x 10-12 erg in 1 eV.
vivado [14]

Answer:

2 eV

Explanation:

The energy of a photon of light is given by the formula

E=\frac{hc}{\lambda}

where

h is the Planck constant

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In this problem we have:

h=6.63\cdot 10^{-34} Js

c=3.0\cdot 10^8 m/s

\lambda=6250 A = 6250\cdot 10^{-10} m is the wavelength of the photon

Therefore, the energy in Joules is

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Therefore,

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3 years ago
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Natasha2012 [34]

Explanation:

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4 0
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How many grams of oxygen can be produced from the decomposition of 100. g of kclo3?
aivan3 [116]
<span>100 g of KClO3 @ 122.55 g/mol = 0.816 moles of KClO3
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