This question concern the chemistry of the element Li, Na, K, Rb and Cs. In a and b case you should name the substance represented by letters. a) 'A' is the least dense of metals.
b) When metal 'B' is dropped on to water it melts into a small ball and moves rapidly around the surface. A gas, 'C', is given of and this burn with a lilac flame. A solution of 'D' is formed.
c) Write an equation for the reaction of 'B' with water.
d) What would you expect to see if solution 'D' was tested with universal indicator paper.
e) Explain why 'B' melt in to a small ball when it is dropped on to water.
f) 'E' burns in air with a yellow flame to form compound 'F'. write a word equation and balanced symbol equation for the reaction that occurs?

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

Given the following information: mass of proton = 1.00728 amu mass of neutron = 1.00866 amu mass of electron = 5.486 × 10^-4 amu speed of light = 2.9979 × 10^8 m/s calculate the nuclear binding energy (absolute value) of 3li^6. which has an atomic mass of 6.015126 amu. j/mol.

Is a measure of the resistance to flow. a high liquid has a high resistance to flow and flows slowly. the ancients thought everything in the world was made of 4 we now know that there are 94 naturally occurring and scientists have created another 24 i am certain they will create even more. honey flows slowly because it has a high to flowing. a can be separated by physical means because it contains more than one pure substance and 2 pure substances are not chemically bonded to each other. a cannot be separated by physical means. all matter is made up of all elements are with the same number of protons. if it is just a single or many bonded together, if all of them have the same number of protons, it is an element. in a piece of pure iron metal, all the are joined together, that piece of iron metal is called elemental iron. a single of iron is called elemental iron. a mixture has differences from place to place. we might need a microscope to see them or they might be obvious to the unaided eye. there are surfaces separating it into different phases. a mixture is the same everywhere. it is uniform. there are no surfaces separating it into different phases. if different kinds of atoms (different elements) are bonded together by their electrons, it is called a there are physical means of to isolate the different pure substances in a mixture and there are chemical means of to isolate the different elements in a compound. 1. element 2. compound 3. mixture 4. heterogeneous 5. homogeneous 6. pure substance 7. atoms 8. separation 9. viscosity 10. resistance