It is a trial aimed to reduce bias during an experiment. An example would be a sugar pill, something that has no real effect so that the results of the true trial can accurately be compared. Its like a control group.
Answer:
Joined together to form compounds or rearranged.
Explanation:
Dalton's Theories
-atoms from two or more different elements join together to form compounds in chemical reactions.
-chemical reactions rearrange atoms, but in specific compounds the atoms of different elements always combine in the same way.
Answer:
The low light eye sight depends on the rod cells of the eye,and the birds have more amount of rod cell in their eyes, that's why they have an extraordinary night vision
Answer:
1.They break the bonds between the ions.
2.They remove electrons from the ions.
Explanation:
covalent bonds do not dissolve in water but some covalent compoound s do
i think it’s B. a hydrocarbon reacts with oxygen
if i’m correct, a combustion reaction is anything that’ll give a reaction
