Answer:
Because both compounds (CaCl2 and CaBr2) contain elements (bromine and chlorine) from the same group (group 7)
Explanation:
Elements are organized into groups on the periodic table based on the number of valence electrons contained in their outermost shell. These elements in the same group i.e. same number of valence electrons, will behave in a similar manner chemically.
CaCl2 and CaBr2 are two compounds that contains elements (Chlorine and Bromine) from the same group, which is group 7. Elements in group 7 are called HALOGENS and have 7 valence electrons in their outermost shell.
Bromine (Br) and Chorine (Cl) are responsible for the similarity in the properties of CaCl2 and CaBr2 because the Chlorine and Bromine contained in them will cause them to react similarly and behave similarly in the presence of other compounds.
Answer:
1. Richter
2. moment
Explanation:
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Answer:
1) B and 2) D
Explanation:
when scientists refer to the naked eye, it is referring to the eye without any sort of magnifying device, such as a microscope. Algae blooms can result naturally or by human interference
Answer:
10 g/cm3
Explanation:
The density is equal to mass/volume
so Mass is 80g
and volume is 2*3=8
so density=80/8=10g/cm3
N(CH₃COOH)=c₁v₁=c₂v₂
c₁=2.5 mol/L
c₂=0.50 mol/L
v₁-?
v₂=100.0 mL=0.1000L
v₁=c₂v₂/c₁
v₁=0.50*0.1000/2.5=0.02 L = 20 mL