Answer:
001: 71.2 g per ML
002: Consider a block of marble that occupies 287 cm3 and has a mass of 869 g.
a. What is its density?
d=m/v=869g/287 cm3=3.03 g/cm3
b. Will it float in:
H2O(l)? Why or why not?
Nope! Density > 1.00 g/mL
Hg(l) (density=13.55 g/mL)? Why or why not?
Yep! Density < 13.55 g/mL
003:
Use the given functions to set up and simplify
0.309 cm3
g/cm3=g/cm3
0.309cm3=g/cm3
Explanation:
http://childschemistry.weebly.com/uploads/7/8/6/3/78638416/density_key.pdf
Hope this helps I tried my best
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Answer:
LR is Na₃PO₄
Explanation:
A quick way to determine the limiting reactant in a process is to convert reactant values to moles and then divide by the respective coefficient of the balanced equation. The smaller number of the division is the limiting reactant. For the given reaction, the rxn ratio of reactants is 1:1 so only the smaller mole value gives limiting reactant. However, if the reaction is NOT 1:1 the one must divide by respective coefficient to identify the smallest value and the limiting reactant.
This problem:
FeCl3(aq) + Na3PO4(aq) => FePO4(s) + 3 NaCl(aq)
Given: 27.8g 61.9g
moles: 27.8g/162.2g/mole 1.9g/163.94g/mole
= 0.1714 mole = 0.0116 mole
÷ coef. => 0.1714/1 = 0.1714 => 0.0116/1 = 0.0116
smaller value is LR => => => => => => LR is Na₃PO₄
Hope this helps. Doc :-)
Answer:
thay all are different from each other
An electron carries a negative power to the atom. in each atom, the amount of protons and electrons are usually evened out so the atom is stable. the electrons of an atom are also found on the outside ring of an atom, unlike protons and neutrons, which are inside the atom. glad to help! :)
