Popular Chemistry Q&A
(1) low first ionization energy and low electronegativity (2) low first ioniz...
what are the most interactive atoms in the periodic table called ?
A. 2500 mL B. 250 cm3 C. 2.5 x 10-2 L D. 25 m3
(1) FeO3 (3) Fe3O(2) Fe2O3 (4) Fe3O2
What are Atoms?
Se-2, S2-, O2-, or Te2-?
0.715 kPa 2.45 kPa 28.2 kPa 62.7 kPa
Systems in nature toward tend to undergo changes(1) lower energy and lower en...
Can it be absorbed? Can a change in matter take place in which energy is nei...
Half-reactions can be written to represent all (1) double-replacement reactio...
In the formula XF2, the element represented by X can be classified as a(1) Gr...
CO, NO, ALCL3, SO2
Alkali metals react violently with water to form metal ions, hydroxide ions, ...
What is the international system of measurment for the "balance for mass and ...
how can we find the number of moles in equilibrium?
what is refraction and its difference with reflection?
calcium hydrogen chlorine nitrogen
science class
How much work (in J) is required to expand the volume of a pump from 0.0 L to...
which of the following best shows a sea breeze
(1) A catalyst is added as an additional reactant and is consumed but not reg...
how many carbons are in the empirical formular of the compound C12H36O24
B) forms a NaCL precipitate C) ionizes into Na+ and Cl- D) forms a strong acid
what is the active component of dynamite
what two categorical ways of thinking about matter are discussed in the passage?
T or F
What is the word for a sample treated like other experimental groups except v...
Substances made of two or more elements which are not chemically bonded are k...
What is the balanced complete ionic equation for K2SO4(aq)+CaI2(aq)=CaSO4(s)+...
Teeth, tongue, throat, stomach, small intestines, large intestines, and rectu...