The volume of Iron (in cm^3) = 4840/7.86 = 615.78 cm^3.
1 cm^3 = 1 mL and there are 1000 mL in 1 dL
So to convert from cm^3 to dL, we just have to divide by a 1000
615.78/1000 = 0.61578 dL
(10)an object will continue to travel at a constant speed unless acted by an unbalanced force according to newtons second law every force acted on a body has a equal and opposite reaction so the speed and the direction of the object will change.
(9) balanced force (i think so )
hope this is what you needed the 10th one is for understanding you can shorten it after reading and i think what i have written is not wrong :P:P:P;p:P:):):):D=) for the ninth one i am not sure but i think so :P:)=)
Answer: In chemistry, the molar mass of a chemical compound is defined as the mass of a sample of that compound divided by the amount of substance in that sample, measured in moles. The molar mass is a bulk, not molecular, property of a substance.
Explanation:
Explanation:
Single displacement reactions is defined as the chemical reaction in which more reactive metal displaces less reactive metal in a chemical reaction. These type of reactions are studied with the help of reactivity series.
The metals which lie above in the series will displace the metals which lie below in the reactivity series.
General form of this type of reaction follows:
where, A is more reactive metal than B.
For the given reactants, the following reaction follows:
1) Zinc and Copper sulfate
The reaction will occur because zinc is more reactive than copper and will easily displace copper in a chemical reaction.
2) Aluminium and Copper sulfate
The reaction will occur because aluminium is more reactive than copper and will easily displace copper in a chemical reaction.
3) Zinc and Silver Nitrate
The reaction will occur because Zinc is more reactive than Silver and will easily displace silver in a chemical reaction.
4) Copper and Silver Nitrate
The reaction will occur because Copper is more reactive than Silver and will easily displace silver in a chemical reaction.
Answer:
NO3-
Explanation:
Given the reaction equation;
Au(s) + 3NO3-(aq) + 6H+(aq)→Au3+(aq) + 3NO2(g) + 3H2O (l).
We can consider the oxidation states of species on the left and right hand sides of the reaction equation;
Au is in zero oxidation state on the left hand side and an oxidation state of +3 on the righthand side.
NO3- is in oxidation state of +5 on the righthand side and NO2 is in + 4 oxidation state.
H+ is in + 1 oxidation state on both the left and right hand sides of the reaction equation.
Since reduction has to do with a decrease in oxidation number, it follows that NO3- was reduced in the reaction.