2 years ago

Which button is a shortcut for scientific notation on a scientific calculator?

1 answer:

8 0

Answer: For many calculators, including the TI –83 and TI 83 Plus, the [EE] button is used to enter scientific notation. The [EE] button can be found in yellow above the comma key [,].

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How many electrons does Br lose or gain to fill its octet?

Greeley [361]

i think it is 8. I might be wrong.

4 0

3 years ago

A chemist who studies water samples did a demonstration of how to test for lead in water. She added a clear solution of potassiu

Lerok [7]

Answer:

The swirling yellow solid formed is lead iodide (PbI₂).

Explanation:

The reaction of potassium iodide (KI) with lead nitrate (Pb(NO₃)₂) will produce lead iodide (PbI₂) and potassium nitrate (KNO₃) according to the equation:

2KI + Pb(NO₃)₂ → PbI₂↓ + 2KNO₃