Answer:
coefficients increase the products to increase the efficiency of the reaction.Coefficients balance the equation with respect to the law of conversation of mass. coefficients also increases the reactants to help the reaction proceed.
Answer:
Neutrons
Explanation:
The number of neutrons varies from atom to atom, which results in isotopes. Isotopes are different forms of the same atom that vary by the number of neutrons they contain.
Answer:
0.053 grams O₂
Explanation:
To find the mass of O₂, you need to convert the number of molecules to moles (using Avogadro's number) then convert the number of moles to mass (using the molar mass from the periodic table).
6.022 x 10²³ molecules = 1 mole
Molar Mass (O₂) = 2(16.00) g/mol
Molar Mass (O₂) = 32.00 g/mol
1.0 x 10²¹ molecules O₂ 1 mole 32.00 grams
----------------------------------- x ------------------------------------ x ----------------------
6.022 x 10²³ molecules 1 mole
= 0.053 grams O₂
Acids: tastes sour has a ph less that 7
Bases: taste bitter has a ph greater than 7
Acids and bases: conduct electricity feels slippery
