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NNADVOKAT [17]
1 year ago
11

Using Table 2: Common Radioactive Isotopes, identify the radioisotope that you

Chemistry
1 answer:
TiliK225 [7]1 year ago
3 0

Answer:

Explanation:

Table 2: Common RadioactiveIsotopesUse this table to identify the most likely radioactive material used in theassault.Type ofSourceHalf-lifeRadiationCalifornium-252aIndustrial2.6 years-Used to test luggage for hiddenexplosives-Used to gauge moisture levels of soil fortheconstructionindustryCesium-137,')'Industrial30 years-Used in radio-tracing to identify sources ofsoilerosion anddeposition-Used to determine if oil wells are plugged withsand-Used to measure flow of fluids inpipesMedical-Used in cancertreatmentCobalt-60,')'Industrial5.2 years-Usedto check for cracks inpipesMedical-Used to sterilizeinstrumentsCurium-244aIndustrial18.1 years-Used in mining to analyze the materials dugfrompitsIodine-131,')'Medical8.0 days-Used to diagnose and treat human diseases ofthethyroidPlutonium-239a,yNuclear24,110years-Used as heat source in electricity generatorsonsomespacecraft-Used to buildthermonuclear weaponsPolonium-210a,yIndustrial138 days-Used to reduce static electricityin anindustrialsetting.

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When the equation Ca(OH)2 + HBr → (products) is completed and balanced, one term in the equation will be
NISA [10]
<span>Answer for the given question is CaBr2. Although, the given equation requires balancing of by adding one more HBr and one more H2o in resultant. The given equation will product at least one CaBr2. Hence the answer for the given equation is Calcium bromide i.e. CaBr2.</span>
4 0
3 years ago
In a typical mass spectrum, a smaller signal is observed at a mass 1 amu higher than the molecular ion peak. Why
Nina [5.8K]

Answer:

Answer is explained below in the explanation section

Explanation:

Smaller signal is observed at a mass 1 amu because small percentage of the compound will have carbon isotope of 13C instead of 12C.

As we know, mass spectrometry is done as a small compound is first vaporized and then bombarded to ionize it. And then, those ions are accelerated forward and then at some point ions are separated and deflected by the application of magnetic field.

And finally hits the detector to give us a spectrum to read. So, in this whole procedure, there can be a small percentage of carbon isotope of 13C instead of 12C in that compound and showed in the spectrum as a smaller signal at a mass 1 amu.

8 0
3 years ago
How many atoms of hydrogen are in two moles of ch4?
ziro4ka [17]
There are four Hydrogen atoms in one molecule of Methane (CH₄).
And there are 6.022×10²³ molecules in 1 mole of CH₄.
So,
Number of Hydrogen atoms is 1 mole of CH₄ are,

                      =  6.022 × 10²³ × 4
                 
                      =  2.4 ×10²⁴ Hydrogen Atoms

Now calculating for 2 moles,

As,
                   1 mole of CH₄ contains  =  2.4 ×10²⁴ Hydrogen Atom
Then,
             2 moles of CH₄ will contain  =  X Hydrogen Atoms

Solving for X,
                          X  =  (2 moles × 2.4 ×10²⁴ Hydrogen Atom) ÷ 1 mole

                          X  =  4.8 × 10²⁴ Hydrogen Atoms
5 0
4 years ago
PLEASE HELP THIS IS IMPORTANT. Answer the ones u know leave the ones u don’t. Be specific too and I’ll give u a brainlist/5 star
LekaFEV [45]

Answer:

1) Condensation.

2) See below.

Explanation:

1) The warmer water vapour from the surroundings came into contact with the cooler inner surface of the glass jar and condensed, forming the water droplets (water vapour) on the inside of the glass jar.

2) As condensation occurs, condensed water vapour will drip into the water solution in the glass jar, causing the water to rise in the glass jar.

5 0
3 years ago
A chemical combination of two or more atoms is a(n) .
irinina [24]

Answer:

Molecule

Explanation:

Its simple definition

6 0
3 years ago
Read 2 more answers
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