Explanation:
2H2(g) + O2(g) → 2H2O(l )
Ionic bonds are formed when one of the two atoms that are reacting has excess electrons and transfer the electrons to the atom that is deficient in electrons. During the formation of the ionic bond, one of the reacting atoms will donate electrons and form positive ion.
Answer:
oxygen is an element because it is a pure substance which cannot be split into simpler substances by chemical means
Answer: <span>A fewer number of particles of the sample will dissolve in 1 minute.
That is because normally the solubility and rate of solubility of the salts in water increase with the temperature. This is, the higher the temperature the higher and faster the number of particles that the water can dissolve. So, at 70°C more particles will be dissolved in water in 1 minute than at 20°C.
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Answer:
B
Explanation:
you're moving the decimal 8 spots to the left so it can only be B