1:) <span>Zn + 2 HCl = ZnCl2 + H<span>2
</span></span>2:) 4 Fe + 3 O2 = 2 Fe2O3
Scientists look at their data and decide if the data supports the hypothesis.If the data is exactly the same after many experiments, the hypothesis is supported.If the data does not support the hypothesis, scientist may change the hypothesis or change the experiment .
Answer:
A- 2cm
Explanation:
The volume of a container is the amount of space it encloses.
Using the formula for volume of any container
V = L * W * H
V - volume of a container
L - length of the container
W - width of the container
H - height of the container
Using the information we are provided with
V = 60cm^3
L = 5cm
W = 6cm
H = ?cm
Using the formula
V = L * W * H
inserting the values given
60 = 5 * 6 * H
60 = 30 * H
60 = 30H
Divide through by 30, to get the value of H
60/ 30 = 30H/30
60/ 30 = H
H = 60/30
H = 2cm
The height of the container is 2cm.
Answer:
of equal length and are midway between a single bond and a double bond
Explanation:
Benzene -
The chemical formula for benzene is C₆H₆ , which consists six bonds , which are of each bond length , which is somewhere in between double and single bond .
The property responsible for this type of bond length in benzene molecule is Resonance .
Resonance refers to the process of delocalization of electron in the given structure .
Hence , from the given question ,
Due to the process of resonance , the bond length between the carbon and hydrogen is of equal length .