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castortr0y [4]
3 years ago
8

Help plz i don't know this

Chemistry
1 answer:
Temka [501]3 years ago
3 0
Try taking a better pic, it’s hard to read the questions.
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Who discovered the electron and what instrument did he use?
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Explanation:(I Googled it)

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Classify each of the following equations as synthesis, decomposition, or replacement.
Sonja [21]

Answer: A. Is decomposition

B. Is synthesis where Na combines with Cl to form NaCl

C. Is single displacement or replacement. Mg displaces Cu.

Explanation:

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Where do most carbon monoxide emissions come from?
qwelly [4]

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0.00632 into a scientific notation
ddd [48]

Answer:

6.32 × 10⁻³

3.2560008× 10⁷

5.630× 10⁰

9.5002× 10¹

Explanation:

Scientific notation is the way to express the large value in short form.

The number in scientific notation have two parts.

The digits (decimal point will place after first digit)

× 10 ( the power which put the decimal point where it should be)

For example:

0.00632

In scientific notation =  6.32 × 10⁻³

32,560,008

In scientific notation  = 3.2560008× 10⁷

5.630

In scientific notation  = 5.630× 10⁰

95.002

In scientific notation  = 9.5002× 10¹

6 0
3 years ago
Read 2 more answers
When hydrogen is combined with a metal, it has an oxidation number of _____.
solmaris [256]
The answer is c because thats the number when combined with a metal. +1 is when its combined with a nonmetal. 
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