Across
1: Period
5: Proton
Down
2: Electron
3: Neutron
More later, I've gotta do homework now :)
True becuase the substance changed into another substance which is a example of a chemical reaction.
<span>Hind limbs will typically be stronger than forelimbs. For some animals this is because they are used for self-defense (a horse or donkey kicking, for example). Forelimbs are not going to be as strong and are often used for feeding oneself, and not intended to be as weight bearing in many mammals.</span>
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density 15.4 grams per 1.2³ cm³ ≅ 8.9 grams per cm³
<span>Find the metal that has a density of approximately 8.9 g/cm³</span>
