Kow many atoms are in 3H2O

Which of the following describes a response to external stimuli? a boy sneezes when exposed to cat dander a girl eats food when she is hungry a child becomes hyperactive due to a chemical imbalance a person yawns when oxygen levels in the blood are

When very electronegative atoms, like oxygen, bond to atoms with lower electronegativity, like hydrogen, what's the result?

Which pair of elements is both malleable and able to conduct heat

The first step in the industrial recovery of zinc from the zinc sulfide ore is roasting, that is, conversion of ZnS to ZnO by heating: 2ZnS (s) + 302 (g) - 2ZnO (s) + 2S02 (g) AH--879 kJ Calculate the heat released (in kJ) per gram of ZnS roasted.

Matter that flows to fit its container includes?

Which of the following contains both ionic and covalent bonding? CH4 NaCl NH4Cl N2O4 If the formula for a compound is represented by X2Y3 and the charge on the Y ion is - 2, what is the charge in the X ion? +1 +2 +3 +4

Qual e o maior orgao do corpo humano

Whic of the following fromulas represents a nonpolar molecule? a) N2 b) H2O c) NaCI d) HCI

What is the density of 19.2 g of oak that has a volume of 25.7 cm3?

Which of these is a compound? О co2, O2, Co