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A SAMPLE OF ANTIMONY, Ar=121.8, WAS ANALYSED AND WAS FOUND TO CONSIST OF 60% OF 121Sb AND ONE OTHER ISOTOPE. DETERMINE THE MASS
1. 1 answer
2. 837 views
What is the algebra candy mixture problem?PLease explain clearly and detailled.
1. 2 answers
2. 493 views
Ytterbium, atomic number 70, is the first element in the Periodic table to have the first four shells full.a) State the number
1. 2 answers
2. 1,148 views
A SAMPLE OF ANTIMONY, Ar=121.8, WAS ANALYSED AND WAS FOUND TO CONSIST OF 60% OF 121Sb AND ONE OTHER ISOTOPE. DETERMINE THE MASS
1. 2 answers
2. 865 views
From the list of compounds below identify each of their molecules:1. Propanone C3H60 Mr=58 2. Chromium trioxide Cr2O3 Mr= 152
1. 0 answers
2. 487 views
Element X has three isotopesIsotope 1 Isotope 2 Isotope 3 Mass 28 29 30 Abundance % 92.18 4.71 3.12 ii)Use the isotope
1. 1 answer
2. 752 views
40Ca2+ 20 79 Br- 35 58 Ni2+ 28 For the three ions written above give the correct number of each of the following: a) the maximum
1. 2 answers
2. 620 views
A ball is hit from horizontal ground with velocity (10i+24.5j) ms-1 where the unit vectors i and j are horizontal and vertically
1. 3 answers
2. 2,208 views
A SAMPLE OF ANTIMONY, Ar=121.8, WAS ANALYSED AND WAS FOUND TO CONSIST OF 60% OF 121Sb AND ONE OTHER ISOTOPE. DETERMINE THE MASS
1. 4 answers
2. 4,773 views
Bromine has two isotopes, Br- 79 and Br- 81. The relative atomic mass of bromine is 79.9.CALCULATE THE PERCENTAGE of Br-79 atoms
1. 3 answers
2. 6,636 views
Ytterbium, atomic number 70, is the first element in the Periodic table to have the first four shells full.a) State the number
1. 1 answer
2. 590 views
WHAT IS THE ION CONFIGURATION OFGALLIUM 3+ AND TIN 4+ AND WHAT ARE THE RULES (WRITTEN CLEARLY) please help i really dont know
1. 3 answers
2. 709 views
Antimony, Sb, has atomic number 51.a)WHICH PERIOD AND BLOCK IS ANTIMONY FOUND? is it period 6 block 13??? b)DIFFERENT ISOTOPES
1. 4 answers
2. 912 views
Bromine has two isotopes, Br- 79 and Br- 81. The relative atomic mass of bromine is 79.9.CALCULATE THE PERCENTAGE of Br-79 atoms
1. 2 answers
2. 1,570 views
Ytterbium, atomic number 70, is the first element in the Periodic table to have the first four shells full.a) State the number
1. 2 answers
2. 1,198 views
2Na(s) + 2HCl (aq) -> 2NaCl (aq) + H2 (g)1. IF 2.5G OF SODIUM REACTS WITH AN EXCESS OF HYDROCHLORIC ACID, WHAT VOLUME OF
1. 7 answers
2. 2,117 views
PCl3 (s) + Cl2 (g) -> PCl5 (s)1. WHAT VOLUME OF Cl2 would react with 1.4g of PCl3 to make PCl5? 2. IF YOU WANTED to make 10g of
1. 2 answers
2. 793 views