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BabaBlast [244]
3 years ago
10

Vocabulary: dipole, dipole-dipole force, dipole-induced dipole force, electronegativity, intermolecular force, ionic bond, Londo

n dispersion force, molecule, nonpolar, nonpolar covalent bond, partial charges, polar, polar covalent bond, valence electron Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. A big bully is having a tug-of-war with a small child. There is a ball attached to the middle of the rope. Toward whom will the ball move
Chemistry
1 answer:
Ray Of Light [21]3 years ago
3 0

Answer:

Towards the big bully

Explanation:

If a big bully and a small child are involved in a thug of war, it is clear that the bully is stronger than the child and he/she will pull the rope used in the thug of war with a greater force.

By so doing, the ball attached at the centre of the rope will naturally be drawn towards the stronger bully.

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Write the equations that represent the first and second ionization steps for selenic acid (H2SeO4) in water. (Use H3O instead of
FrozenT [24]

Answer:

First ionization step:

H₂SeO₄(aq) + H₂O(l)  →  H₃O⁺(aq) + HSeO₄⁻(aq)

Second ionization step:

HSeO₄⁻(aq) + H₂O(l)  →  H₃O⁺(aq) + SeO₄⁻²(aq)

Explanation:

Selenic acid is a dyprotic and a strong acid with the formula: H₂SeO₄.

When it reacts to water, it release two protons in two ionizations.

Finally it gives hydronium to the medium.

H₂SeO₄(aq) + H₂O(l)  →  H₃O⁺(aq) + HSeO₄⁻(aq)

HSeO₄⁻(aq) + H₂O(l)  →  H₃O⁺(aq) + SeO₄⁻²(aq)

7 0
3 years ago
Elements that do not have full outer electron shells will donate, share, or take from other atoms. Choose the items that have th
Gnesinka [82]

Answer:

Ok...

Answer: YTH/JYG

Explanation:

AI+ZN+H=YTH

7 0
3 years ago
Jamal does not produce enough insulin to regulate his blood sugar. What part of the endocrine system is most likely being affect
Blizzard [7]

Answer:

B pancreas, since the pancreas secretes insulin

Explanation:

7 0
3 years ago
g At elevated temperatures, molecular hydrogen and molecular bromine react to partially form hydrogen bromide: H 2 (g) Br 2 (g)
oksano4ka [1.4K]

Answer: At equilibrium , there are 0.274 moles of Br_2

Explanation:

Moles of  H_2 = 0.682 mole

Moles of  Br_2 = 0.440 mole

Volume of solution = 2.00 L

Initial concentration of H_2 = \frac{0.682}{2.00}=0.341 M

Initial concentration of Br_2 =  \frac{0.440}{2.00}=0.220 M

Equilibrium concentration of H_2 = \frac{0.516}{2.00}=0.258 M

The given balanced equilibrium reaction is,

             H_2(g)+Br_2(g)\rightleftharpoons 2HBr(g)

Initial conc.   0.341 M    0.220 M        0 M    

At eqm. conc.   (0.341-x) M   (0.220-x) M   (2x) M

Given : (0.341-x) M = 0.258 M

x= 0.083 M

Thus equilibrium concentartion of Br_2 = (0.220-0.083) M = 0.137 M

Thus moles of Br_2 at equilibrium = 0.137M\times 2.00L=0.274mol

At equilibrium , there are 0.274 moles of Br_2

8 0
3 years ago
CuSO4.5H2O(k) ısı CuSO4(k) + 5 H2O(g) eşitliğine göre bakır sülfatın kristal suyu miktarı ve kaba formülü hesaplanacaktır.
baherus [9]

Answer:

159.609 g/mol

Explanation:

According to the CuSO4.5H2O (k) heat CuSO4 (k) + 5 H2O (g) equation, the crystal water amount of copper sulfate and its rough formula will be calculated.

Weight of copper sulfate containing crystal water = m1 = 249.62… g

Weight of copper sulfate without crystal water weighed = m2 = 159.62 g

Accordingly, calculate the x and y values ​​in the molecular formula of copper sulfate (xCuSO4.yH2O).

3 0
3 years ago
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