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2 years ago

Need help please Balancing the equation in the pic

Chemistry

1 answer:

IRINA_888 [86]2 years ago

7 0

2KClO3=2KCl+3O2
The equation

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How are igneous rocks formed?

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Igneous rocks are formed when volcanoes erupt, then the form when the lava cools. so the answer is A.

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3 years ago

Which phrase correctly describes the particles that make up water vapor?

Alexxx [7]

Answer:

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Explanation:

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3 years ago

An oxide of P contains 50% by mass of P. Its Relative molecular mass is 64. The molecular formula of the oxide is (P=32; O=16)

anygoal [31]

Answer:

B) PO2

Explanation:

first solve empirical formula

50%of P and 50%of O

divide each by molecular mass

P. O

50/32. 50/16

1.5. 3.0

divide both by the smallest

1.5/1.5. 3.0/1.5

1. :. 2

Empirical formula=PO2

Molecular formula=PO2

(PO2)n= 64

(32+(16×2)=64

(32+32)n=64

64n=64

n= 1

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2 years ago

Light strikes a beautiful white perch under water. This light is reflected back to your eyes allowing you to see the fish. As th

Ivahew [28]

The answer is: Light strikes a beautiful white perch under water. This light is reflected back to your eyes allowing you to see the fish. As the light left the water it changes speed causing the light to bend away from the normal.
Hope this helps!
(i got this from https://quizlet.com/5474123/chapter-13-light-flash-cards/ if you need more help)

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2 years ago

A blu-ray laser has a wavelength of 405nm. In what region of the electromagnetic spectrum is this radiation? What is its frequen

love history [14]

Answer:

It lies in in the visible region.

Frequency: is 7.407 × 10^-14 Hz

${ \bf{V = f \lambda}} \\ { \tt{3.0 \times {10}^{8} = f \times (405 \times {10}^{ - 9}) }} \\ { \tt{f = 7.407 \times {10}^{14} \: hertz}}$

Explanation:

V is speed of light.

f is frequency

lambda is the wavelength

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2 years ago