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sweet [91]
2 years ago
11

Which of the following combination of elements would result in covalent compound? * W X Y Z Vand X Wand Z Y and Z Wand y​

Chemistry
1 answer:
TEA [102]2 years ago
4 0

Answer:

C. Y & Z

Explanation:

V, W are imaginary metals here because their valence electrons are typically less than 4. X, Y, Z are non-metals and have higher valence electrons. Here, if V or W bind with X, Y, or Z we make ionic bond (because metal + non metal = ionic). But, if X binds with Y or Z or any combinations of any two of the three non-metals results in covalent bond (non metal + non metal = covalent).

Thus, Y and Z make covalent.

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The complete combustion (reaction with oxygen) of liquid octane (C8H18) a component typical of the hydrocarbons in gasoline, pro
lozanna [386]

Answer:

The answer to your question is letter A. 2

Explanation:

Data

Octane = C₈H₁₈

Oxygen = O₂

Carbon dioxide = CO₂

Water = H₂O

Reaction

                         C₈H₁₈  +   O₂   ⇒   CO₂   +   H₂O

                  Reactants         Elements          Products

                          8                     C                         1

                         18                     H                        2

                          2                     O                        3

This reaction is unbalanced

                          C₈H₁₈  +  25/2O₂   ⇒   8CO₂   +   9H₂O

                  Reactants         Elements          Products

                          8                     C                         8

                         18                     H                        18

                         25                     O                       25

Multiply the reaction by 2

                    2C₈H₁₈  +   25O₂   ⇒   16CO₂   +   18H₂O

                  Reactants         Elements          Products

                         16                     C                        16

                         36                     H                       36

                         50                     O                       50

Now, the reaction is balanced

4 0
2 years ago
Drag the tiles to the correct boxes to complete the pairs.
Aliun [14]

Answer:

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6 0
2 years ago
HELP ITS OVER DUE AND GRADE BOOK ENDS MARCH 5TH
Ymorist [56]
Mutualism- both organisms benefit
Commensalism- one organism benefits while the other neither is harmed or helped
Parasitism- one organism is benefited while the other is harmed

4 P (flea benefits but dog is harmed)
5 M (both get to eat the honey)
6 C (bird gets a place to live without harming or helping the tree)
7 P (lice get a place to live but humans are harmed)
8 M (both are helped)
9 C (flower isn’t harmed or helped but bee is helped)
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4 0
3 years ago
If a sodium atom looses an electron to form an ion what is its charge?
Igoryamba
Is there any answers to choose from?
 <span />
7 0
3 years ago
Read 2 more answers
2.5 piece of lithium is dropped into a 500 g sample of water at 22.1 C.ten temperature of the water increases to 23.5 C. How muc
Dominik [7]

Answer:

2.6 kJ  

Explanation:

The formula for the amount of heat (q) absorbed by the water is

q = mCΔT

1. Calculate ΔT

ΔT = 23.5 °C - 22.1 °C = 1.4 °C

2. Calculate q

q₂ = mCΔT = 500 g × 4.184 J·°C⁻¹g⁻¹ × 1.4 °C = 2900 J = 2.9 kJ

3 0
3 years ago
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