Answer:
a formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms.
Explanation:
Answer:
The correct answer is : 0.025.
Explanation:
The precipitation reaction is as follows in this procedure:
NiSO4.6H20 (aq) + Na2CO3.10H2O (aq)⇒ NiCO3 (s) + Na2SO4 (aq) + 16H2O
So, the number of moles of reactants can be found by
number of moles : mass used/ molar mass
n (NiSO4×6H2O) = (6.57 g)/(262.84 g/mol) = 0.025 mol (for Ni)
n (Na2CO3×10H2O) = (7.15 g)/(286.14 g/mol) = 0.0250 mol (for CO3).
Thus, The maximum number of moles of NiCO3 that can form is 0.025 mol.
Alpha particle: 3.7273
neutron: 1.0087
beta particle: 0.000544
proton: 1.0073
<span>The beta particle weighs the least in comparison to the others </span>
Answer:
80.8 mL
Explanation:
From the question given above, the following data were obtained:
Initial volume (V₁) = 74.5 mL
Initial pressure (P₁) = 98.0 kPa
Final pressure (P₂) = 90.4 kPa
Final volume (V₂) =?
The final volume of the gas can be by using the Boyle's laws equation as follow:
P₁V₁ = P₂V₂
98 × 74.5 = 90.4 × V₂
7301 = 90.4 × V₂
Divide both side by 90.4
V₂ = 7301 / 90.4
V₂ = 80.8 mL
Thus, the volume of the gas is 80.8 mL
Answer: B) The rate of reaction
Explanation: Rate of reaction describes the speed at which the reactants of the reaction are getting converted into the products with respect to time.
The equilibrium explains that how much concentration of reactant is in equilibrium with the product.
Solution concentration is the number of moles of solution divided by volume.
The catalyst is the substance which increases the rate of the reaction which bringing any change in other things.
