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Dora M.
Tutor for 3 years
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Basic Math
TutorMe
Question:

Convert to decimal number: 2/5

Dora M.
Answer:

2:5=0,4

Chemistry
TutorMe
Question:

What is the point of throwing salt on the street during the winter when it is very cold ( temperatures in minuses)?

Dora M.
Answer:

In order to lower the melting point of the water and there is no ice on the street.

Basic Chemistry
TutorMe
Question:

There is sodium ion, potassium ion and chlorine ion in the bowl. How does sodium ion know which one to choose for making compound?

Dora M.
Answer:

Na+, K+, Cl- plus goes with minus, not with plus.

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