Chemistry, 12.11.2019 08:31, krystlemiller920

How many dots are shown in the electron dot diagram for calcium, in group ii and period 4 with 20 protons and 20 electrons? a. four c. eight b. two d. twenty

Answers: 3

Show answers

Other questions on the subject: Chemistry

Chemistry, 21.06.2019 22:20, Brooke7644

Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?

Answers: 2

continue

Chemistry, 22.06.2019 02:00, hemolelekeakua

The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?

Answers: 3

continue

Chemistry, 22.06.2019 06:40, CylieTbh

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

Answers: 3

continue

Chemistry, 22.06.2019 10:30, mv603177

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic

Answers: 1

continue

Do you know the correct answer?

How many dots are shown in the electron dot diagram for calcium, in group ii and period 4 with 20 pr...