If a mineral isn't scratched by a fingernail, what can you conclude about the minerals

Hannah does an experiment. She has two colorless chemicals that she mixes together in a beaker. Which of the following indicates

uranmaximum [27]

I am not to sure but is it all 4 of them?

8 0

3 years ago

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Evaluate the Lewis structures below and pick the statements that best describes the accuracy of each of the structures. There ma

Artyom0805 [142]

Answer:

The structures shown by dots and lines to give the exact number of electrons in the outer most shell is explained by Lewis Structures.

Explanation:

Lewis structures are those structures in which the diagram is shown using the electron representation. They are easy to understand as the diagram completely depicts where the electrons are shared and where they are transferred. The diagram also explains where there is a single bond and where there is a di covalent bond or tri covalent bond explaining where the single , double or triple electron pair is shared. The electrons are shown by dots or lines.

For example CCl₄ can be shown as follows

..

.. Cl..

.. ..

..Cl..----------C----------..Cl..

..

.. Cl..

The picture shows that each chlorine has six electrons in its outer shell and then a pair of electron is shared with carbon forming a single covalent bond.

Similarly methane CH4 can also be shown.

The hydrogen has one electron and it shares an electron from carbon stabilising itself forming methane.

6 0

3 years ago

HELP ASAP

WARRIOR [948]

The snake,raccoon, and preying mantis

4 0

2 years ago

What is the theoretical yield of fluorenone if you oxidize 175 mg of fluorene?

My name is Ann [436]

Answer: