<span>Acetylene is a pure substance so it is homogeneous.</span>
Answer:
d
Explanation:
soil need nutrient for it to help plant grow
Answer:
A
Explanation:
The barcode is being read by a laser that scans along the length of the sequence, reflecting more light from the white strips and less from the black strips. Hope this helps!
Answer:
Dissolving is when the solute breaks up from a larger crystal of molecules into much smaller groups or individual molecules. This break up is caused by coming into contact with the solvent. In the case of salt water, the water molecules break off salt molecules from the larger crystal lattice.
Explanation:
Answer:
iron(III) Thus, Fe2+ is called the iron(II) ion, while Fe3+ is called the iron(III) ion. This system is used only for elements that form more than one common positive ion. We do not call the Na+ ion the sodium(I) ion because (I) is unnecessary.
Explanation:
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