Hello, super scientist! Did you know that the engineering design process is a cycle? That means it repeats over and over again. After they test their solutions, engineers always think about how to make them better. This brings them back to the brainstorming step. The design process is repeated until the solution is the best it can be.

Review the Engineering Design Process worksheet to understand the steps of the engineering design process. what does this mean.

1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

Acrystal that absorvd water from air is (blank)a. aqueousb. homogenousc. hygroscopicd. efflorescent