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gavmur [86]
2 years ago
15

Calculate the Volume of an object with dimensions measuring 22m x 15mm x 2.0mm

Chemistry
1 answer:
kirza4 [7]2 years ago
6 0

Answer:

660 cubic millimeters

Explanation:

Assuming this is a cube - the equation is Volume = L × W × H - plug in all the numbers provided and you get 660 cubic millimeters.

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Under certain conditions, the substance hydrobromic acid can be broken down to form hydrogen and bromine.
Lerok [7]

Answer:

1. 24.7g of Br2

2. 19.9g of HCl

Explanation:Please see attachment for explanation

7 0
3 years ago
A chemist has synthesized two new dyes based on the molecular structure of plant-based dyes. The lowest energy absorption line f
Nimfa-mama [501]

Answer:

1. The dye that absorbs at 530 nm.

Explanation:

The dye will absorb light to promote the transition of an electron from the HOMO to the LUMO orbital.

The higher the gap, the higher the energy of transition. The energy can be calculated by E = hc/λ, in which h and c are constants and λ is the wavelength.

The equation shows that the higher the energy, the higher the gap and the lower the wavelength.

Therefore, the dye with absorption at 530 nm has the higher HOMO-LUMO gap.

8 0
3 years ago
Workout the formula for:<br>Magnesium Bromide <br>Potassium Chloride ​
madam [21]
Magnesium bromide= MgBr2
Potassium chloride= KCl
8 0
3 years ago
Can someone pls help me with this question
artcher [175]

Answer:

The answer to your question is 24.325

Explanation:

Data

Magnesium-24  Abundance = 78.70%

Magnesium-25  Abundance = 10.13%

Magnesium-26  Abundance = 11.17%

Process

1.- Convert the abundance to decimals

Magnesium-24  Abundance = 78.70/100 = 0.787

Magnesium-25  Abundance = 10.13/100 = 0.1013

Magnesium-26  Abundance = 11.17/100 = 0.1117

2.- Write an equation

Average atomic mass = (Atomic mass-1 x Abundance 1) + (Atomic mass 2 x

                                       Abundance-2) + (Atomic mass 3 x Abundance 3)

3.- Substitution

Average atomic mass = (24 x 0.787) + (25 x 0.1013) + (26 x 0.1117)

4.- Simplification

Average atomic mass = 18.888 + 2.533 + 2.904

5.- Result

Average atomic mass = 24.325

5 0
3 years ago
Day/Night and Seasons (8.7A)
Natasha_Volkova [10]
The length of the seasons would increase
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3 years ago
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