question archive 1)write balanced chemical equations to correspond to each of the following descriptions: aHeptane, C7H16, is combusted in air b
1)write balanced chemical equations to correspond to each of the following descriptions: aHeptane, C7H16, is combusted in air b
Subject:ChemistryPrice: Bought3
1)write balanced chemical equations to correspond to each of the following descriptions:
aHeptane, C7H16, is combusted in air
b. When sulfur trioxide gas reacts with water, a solution of sulfuric acid forms
c. Lithium metal is added to water
d. ZnCO3(s) is decomposed upon heating
2)determine the formula weights of each of the following compounds
a.Ca(Ch2H3O2)2
b.Ch3CH2COOH
C. (NH4)PO4
D. feSO4 z 7H2O
3)calculate the percentage compositions in the following compounds
a. benzoic acid c7H6O2
b. Urea(NH2)2CO
C. Laughing gas , N2O
4)gallium (Ga) consists of two naturally occurring isotopes with masses of 68.926 amu and 70.926 amu . Calculate the abundance of each isotope. The average atomic mass of Ga is 69.726 amu
5)complete the following conversions
a. Moles of 0.005 g water
b. Atoms in 2.50 mole NaOh
c. Grams mass of 2.50 moles O2
d. Carbon atoms in 10.5 g C6H12O6
