groups of the periodic table correspond to elements with a the same color b the same atomic number c similar chemical properties d similar number of neutrons
Groups of the periodic table correspond to elements with: A. The same color B. The same atomic number C. Similar chemical properties D. Similar numbers of nuetrons
The distance between one point on a compression and the corresponding point on the next compression in a sound wave is called a? I had trouble with this question.
Which form of energy is responsible for the primary energy output of the sun and other stars? (Points : 1) chemical energy nuclear energy mechanical energy electromagnetic energy
Which form of energy is responsible for the primary energy output of the sun and other stars? (Points : 1) chemical energy nuclear energy mechanical energy electromagnetic energy
which of the following is true about producers? A.The are helpful to some ecosystems and not essential to any ecosystems B.They are helpful to all ecosystems but not essential to any ecosystems C.They are essential to some ecosystems D.They are essential to all ecosystems
Conservation of momentum If an object with a given momentum breaks into two pieces, what constrains the velocities of the two pieces? a) conservation of mass b) conservation of velocity c) conservation of kinetic energy d) conservation of momentum PLEASE ITS DUE TOMORROW, HELP ME
