Describe the appearance of the material. include its color and state (solid or liquid). pour ¼ cup of water into a small, clear container. measure ¼ teaspoon of the material, and carefully pour it into the container. look at the side of the container as you pour in the material. decide whether the material is less dense or more dense than water by observing whether the material floats or sinks. swirl the container to see whether the material mixes with the water.

Here the given material is taken and mixed with water.

Explanation:

The amount of material and water taken are same. Hence if it is not soluble in water it should make a dense and flowy paste like material and if it is soluble in water it should this and thicker density of water should remain.

If the amount of water that we are taking is more than the material will float in water if it is not soluble and lighter than water or would sink if it is heavier than water.

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.