Correct answer: <span>Dot-and-cross-diagram
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Dot-and-cross diagrams are used to represent covalent bonds. The shared electron from one atom is shown as a dot, while the shared electron from the other atom is shown as a cross.
When drawing dot-and-cross diagrams for covalent bonds, you only need to show the electrons in the highest occupied energy level, as only these are involved.
Answer: b
Step-by-step explanation:
<h3>Answer:</h3>
ellipse
<h3>Explanation:</h3>
Written in general form, the equation is ...
... x² +2y² -4y = 0
The coefficients of the squared terms are the same sign, and of different values, so the equation is of an ellipse.
These are the other possibilities that can be determined from the coefficients of the squared terms.
- Same sign, same value: circle.
- Opposite sign: hyperbola.
- Only one squared term: parabola.
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Of course, your handy graphing calculator can show you the graph, making it easy for you to determine the conic section that is described.
Answer:
2x To the 2 power + x -13 ... Thats the answer
Step-by-step explanation: