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viva [34]
3 years ago
13

Repeating many forms a crystal structure inside each of these repeated units is the ?

Chemistry
2 answers:
djyliett [7]3 years ago
7 0

Answer:

gggzbjv

Explanation:

vhbbn

nnkjj

vjhgnkj

jjjjjjj

Nuetrik [128]3 years ago
7 0

Answer:

unit cells; lattice

Explanation:

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Isotopes ____________ the atomic mass of an element because they have a ____________ number of neutrons. a. disregard, constant
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Is B. The number of the atomic mass can increase or decrease because the number of neutrons is different.
7 0
3 years ago
Combustion of 9.511 grams of c4h10 will yield ____ grams of CO2
Flauer [41]

Answer:

\boxed{28.81}

Explanation:

We know we will need an equation with masses and molar masses, so let’s gather all the information in one place.  

M_r:      58.12                   44.01

           2C₄H₁₀ + 13O₂ ⟶ 8CO₂ + 10H₂O

m/g:     9.511

1. Moles of C₄H₁₀

\text{Moles of C$_{4}$H$_{10} $} = \text{ 9.511 g C$_{4}$H$_{10} $} \times \dfrac{\text{1 mol C$_{4}$H$_{10} $}}{\text{ 58.12 g C$_{4}$H$_{10} $}} = \text{0.1636 mol C$_{4}$H$_{10}$}

2. Moles of CO₂

The molar ratio is 8 mol CO₂:2 mol C₄H₁₀

\text{Moles of CO}_{2} =\text{0.1636 mol C$_{4}$H$_{10} $} \times \dfrac{\text{8 mol CO}_{2}}{\text{2 mol C$_{4}$H$_{10}$}} = \text{0.6546 mol CO}_{2}

3. Mass of CO₂

\text{Mass of CO}_{2} = \text{0.6546 mol CO}_{2} \times \dfrac{\text{44.01 g CO}_{2}}{\text{1 mol CO}_{2}} = \textbf{28.81 g CO}_{2}\\\\\text{The combustion will form $\boxed{\textbf{28.81 g CO}_{2}}$}

8 0
3 years ago
water droplets tend to have a spherical, round shape, Explain ths fact in terms of the polar nature of water molecules
Doss [256]
What does it happen in smallest scale? 
<span>You have to look for "DUPRE' EQUATION" which treat about </span>
<span>"TWO-PHASE INTERFACIAL FORCEs". </span>
<span>At boundary surface between two aggregation phases, you may attribute upper energy level to molecules standing at the boundary zone. So, it has to define INTERFACIAL FORCEs WHICH ACT TO REMODEL SHAPE AND EXTENSION OF MEETING PHASEs. </span>
<span>In your case, Water's Droplet is a liquid phase surrounded by Air (e.g. gas phase) and Interfacial Forces act to dominate Boundary-Surface. </span>
<span>Mathematically, smallest possible Surface comes to SPHERICAL SHAPE. </span>
6 0
3 years ago
How many moles are in 4.95g of neon?
Tpy6a [65]
0.24529601530251 moles of neon
5 0
4 years ago
Read 2 more answers
Match the measurement with the correct number of significant digits:
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What are you measuring
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