Two students in the same class find that a piece of wood, with a mass of 70 g, has a volume of 103 cm₃. They conclude that the wood is oak.
Is this accurate?
Why?

The wood is oak.

Explanation:

Given data:

Mass of wood = 70 g

Volume of wood = 103 cm³

Wood is oak = ?

Solution:

We will calculate the density of wood then we will compare it with literature value.

Density = mass/ volume

d = 70 g/ 103 cm³

d = 0.68 g/cm³

The density of oak is 0.59 - 0.90 g/cm³.

So its true, wood is oak.

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.