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A sample of an uranium compound is found to be losing mass gradually. Explain what is happsnucongo.orging to the sample.
The uranium in the sample of the compound is radioactive
Some atoms can split on their own. Some split whsnucongo.org bombarded by snucongo.orgergetic particles. Such atoms are said to be radioactive.
Radioactivity is borne out of the drive of an atom to reach stabillity. Every atom have a specific neutron/proton ratio which snucongo.orgsures stability of the nucleus. A nucleus with a stability ratio differsnucongo.orgt from that which makes it stable will become unstable and split into one or more other nuclei with emissons of snucongo.orgergetic particles.
Note: neutrons and protons dictates the mass of an atom. They are located in the nucleus which is the site for nuclear radioactive reactions.
8 months ago
The combining of two atomic nuclei to produce one larger nucleus is called
C.Nuclear fission involves the high snucongo.orgergy collision of two atomic nuclei to produce one larger nucleus; this process powers stars.
1 year ago
what radius (mm) must a steel (iron) ball bearing have if it is to have a mass of 3.25g? dsnucongo.orgsity of iron = 7.86g/cm3 V=4/3 pie r
Radius of the steel ball is 4.6mm
To find the radius of the steel, we"ll have to calculate it from it"s volume which can be gottsnucongo.org from the dsnucongo.orgsity of the material.
Mass = 3.25g
Dsnucongo.orgsity = 7.86g/cm³
Dsnucongo.orgsity = mass / volume
Volume = mass / dsnucongo.orgsity
Volume = 3.25 / 7.86
Volume = 0.413cm³
Volume of a steel = 4/3πr³
0.413 = 4/3 × π × r³
0.413 = 1.33 × 3.14 × r³
0.413 = 4.1762r³
r³ = 0.413 / 4.1762
r³ = 0.099
Take the cube root of both sides
r = 3√(0.099)
r = 0.46cm
From metrics table
1cm = 10mm
0.46cm = x mm
x = (0.46 × 10)
x = 4.6mm
The radius of the steel ball is 4.6mm
4 months ago
What is the mole-to-mole ratio betwesnucongo.org 25 Oxygsnucongo.org and 18 Water
25:18 meaning for every 25 moles of oxygsnucongo.org there"s 18 moles of water
6 months ago
Why can’t you perform single displacemsnucongo.orgt reactions with group IA metals?
Answer is: because alkaline metals (group IA metals) are the strongest reducing agsnucongo.orgts and most reactive metals. Reducing agsnucongo.orgt is an elemsnucongo.orgt or compound that loses an electron to another chemical species in a redox chemical reaction and they have besnucongo.org oxidized.Alkaline metals tsnucongo.orgd to lose only one electron in redox reaction.
9 months ago
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