Sunday
December 21, 2014

Posts by yui


Total # Posts: 21

chemistry
Find the molar concentration of 57.9 g of potassium chlorate dissolved in 975 mL of water
December 15, 2014

chemistry
which of the following is true regarding the inner transition elements? A. their valence electrons can be located in both s and f sublevels B. They occupy the d block of the periodic table C. These include the lanthanides and actinides and do not have f sublevels chemistry D. ...
September 15, 2014

chemistry
D. These include all elements in groups 3-12
September 15, 2014

chemistry
which of the following is true regarding the inner transition elements? A. their valence electrons can be located in both s and f sublevels B. They occupy the d block of the periodic table C. These include the lanthanides and actinides and do not have f sublevels
September 15, 2014

chemistry
Based on silicon position on the periodic table, it has A. 14 electrons, which include 2 valence electrons in the third energy level and 12 electrons distributed over the first two energy levels. B. 14 electrons, which include 4 valence electrons in the third energy level and ...
September 15, 2014

chemistry
never mind i figured it out
September 15, 2014

chemistry
bu that's not one of the options
September 15, 2014

chemistry
i come up with 16 electrons which would be sulfur
September 15, 2014

chemistry
What element has the electron configuration 1s22s22p63s23p2? A. Scandium B. Phosphorus C. Krypton D. Arsenic
September 15, 2014

chemistry
Covalent bonding (with an electronegativity difference below 0.5) results when fluorine bonds with A. hydrogen B. potassium C. iodine D. fluorine
September 15, 2014

chemistry
What type of reaction does the following equation represent? AgNO3 + NaCl ---> AgCl + NaNO3 A. Single-displacement reaction B. Synthesis C. Combustion D. Double-displacement reaction
September 15, 2014

chemistry
Which of following statements correctly describes energy levels? A. Electrons can never move to a higher or lower energy level. B.In it's outermost energy level, oxygen has 4 valence electrons. C. The second energy level holds a maximum of eight electrons. D. The greater ...
August 23, 2014

chemistry
Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? A. Magnesium has a 22 oxidation number and chlorine has 1+ oxidation number. B. Magnesium has 1+ oxidation number and chlorine has a 12 oxidation number. C. Magnesium has 22 ...
August 23, 2014

chemistry
What is the proper name for MgSO4/H2O? A. Manganese sulfate hexahydrate B. Magnesium sulfite dihydrate C. Magnesium sulfite heptahydrate D. Magnesium sulfate heptahydrate
August 23, 2014

chemistry
Which statement correctly describes an atom of the element helium? A. An atom of helium has its valence electrons in it's first energy level. B. An atom of helium most similarly behaves like an atom of hydrogen since it is in the same period. C. An atom of helium has a ...
August 23, 2014

chemistry
When water decomposes into oxygen and hydrogen, the mass A. increases B. varies according the number of hydrogen and oxygen molecules that form. C. remains constant D. decreases
August 23, 2014

Literatue- Ms. Sue help me plz
As in Hawthorne's Young Goodman Brown the autobiographical story of Sojourner Truth is written on all of these levels except? (A). interior narrative B. exterior commentary C. social commentary D. dramatic narrative
July 5, 2014

7th Grade Science
D, is the correct answer. Just used A as an answer and it was wrong.
August 21, 2012

science
Calculate the volume of distiled water to prepare 10%w/v solution of solute if 8g of the solute is to be used.
March 4, 2011

chemistry
how will u prepare 500g of aqueos solution which is 10% NaOH by mass?(%W/W)
March 4, 2011

banyan elementary
if 1 row=12 den 7=a DEN 7.12=84
January 19, 2011

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