The substance is a liquid. Think about water :)
Answer:
Magnet with a positive and a negative pole
Explanation:
A great analogy to demonstrate what a polar molecule looks like is to imagine a magnet. A magnet has one positively charged end and one negatively charged end, two poles, that is.
Imagine that we have a magnet of a shape of a prism (water molecule has a bent shape). The two base vertices of the face of the triangle are positively charged, that's because hydrogen is less electronegative than oxygen and, hence, the two hydrogen atoms are partially positively charged in a water molecule.
Oxygen is more electronegative than hydrogen meaning it has a greater electron-withdrawing force, so electrons are closer to oxygen within the O-H bonds. Oxygen, as a result, becomes partially negatively charged, so it's our negative pole of the magnet.
Answer: ![FeTiO_3](https://tex.z-dn.net/?f=FeTiO_3)
Explanation:
Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.
Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.
The molecular formula for a compound that has [1 mol Fe], [1 mol Ti], and [3 mol O] will be ![FeTiO_3](https://tex.z-dn.net/?f=FeTiO_3)
Sodium Carbonate(NaCO3) gives off heat hence the reactions involving Na2CO3 are exothermic.
Hope this helps!
Answer: D. Circulatory System
Explanation: The circulatory system transports gases (oxygen, carbon dioxide), nutrients, and wastes found in the blood throughout the body.