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leva [86]
3 years ago
14

PLZ HELP!!! ☆*: .。. o(≧▽≦)o .。.:*☆

Chemistry
2 answers:
sertanlavr [38]3 years ago
4 0

Answer:

deloms

Explanation:

Allushta [10]3 years ago
3 0

Answer:

I guess movement? Everything stops moving, even molecules, at absolute zero. Molecules are always moving, except at absolute zero.

Explanation:

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What is the texture and appearance of oil
alexgriva [62]

Explanation:

yellow and slick

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4 years ago
Which missing item would complete this beta decay reaction?<br> PLATO
goldfiish [28.3K]

Answer: _{-1}^0\beta

Explanation:  

General representation of an element is given as:   _Z^A\textrm{X}

where,

Z represents Atomic number

A represents Mass number

X represents the symbol of an element

Beta decay : In this process, a neutron gets converted into a proton and an electron releasing a beta-particle. The beta particle released carries a charge of -1 units.

_Z^A\textrm{X}\rightarrow _{Z+1}^A\textrm{Y}+_{-1}^0\beta

The given reaction would be represented as:

_{43}^{98}\textrm{Tc}\rightarrow_{44}^{98}\textrm{Pb}+_{-1}^0\beta

7 0
4 years ago
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A rock has a volume of 625 mL and a mass of 1050 g. What is the density?
Pavel [41]

Answer: 6,275

Explanation:

625+1050=6,257

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4 years ago
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What mass of carbon dioxide is produced from the complete combustion of 5.30x10-3 g of methane
Alenkinab [10]
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6 0
3 years ago
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A sample of an unknown compound was decomposed and found to be composed of 1.36 mol oxygen, 4.10 mol hydrogen, and 2.05 mol carb
AfilCa [17]

We are given the number of moles:

O = 1.36 mol

H = 4.10 mol

C = 2.05 mol

 

To get the empirical formula, first divide everything by the smallest number of moles = 1.36 mol. So that:

O = 1 mol

H = 3 mol

C = 1.5 mol

 

Next step is to multiply everything by a number such that all will be a whole number. In this case, multiply by 2 to get a whole number for C, so that:

O = 2 mol

H = 6 mol

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Therefore the empirical formula of the compound is:

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