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marishachu [46]
3 years ago
6

I need to repost cause I did it wrong and the price was blank, but imma mark BRAINLIEST on this one :D

Chemistry
1 answer:
k0ka [10]3 years ago
5 0

Explanation:

I'm pretty sure 1. yes 2. no and 3. it might be yes but I'd just put a maybe

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What is 125000 in scientific notation?
Usimov [2.4K]

Answer:

1.25 x 10^5

Explanation:

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3 years ago
Which base is the strongest for the given [H+]?
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The answer is 10-12. The relationship of pH and [H+] is pH = -lg[H+]. And the higher pH, the stronger base is. So the strongest base has the lowest concentration of H+.
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3 years ago
Calculate number of moles of 4.4g of CO2 and 5.6L of NH3 . Pls help . Its urgent
kupik [55]
Moles of CO₂ = mass / molecular weight
Moles of CO₂ = 4.4 / (12 + 16 x 2)
Moles of CO₂ = 0.1 mol

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4 0
3 years ago
The atomic number tells us how many __ or __ an element contains.
CaHeK987 [17]
Answer:-
Electrons or Protons

Explanation:-
Atomic number (Z) is defined as:
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>>“The total number of protons in the nucleus or electrons revolving around the nucleus of an atom”.
Example:
For instance, Hydrogen has the Atomic number(Z) 1.
Helium has the atomic number 2.
Oxygen has the atomic number 8.
| Note | Atomic number is represented by “Z”. And some ppl don’t consider the 2nd definition it’s upto u to do both or the standard one.

5 0
3 years ago
Are the base pairs always the same?
Monica [59]
No  because they can be seperated differently

6 0
3 years ago
Read 2 more answers
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