Answer:
[HCl] = 4.54 M
Explanation:
14.2 % by mass is 14.2 g in 100 g of solution.
Let's calculate the moles of our solute, HCl
14.2 g / 36.45 g/mol = 0.389 mol
Molarity is mol/L (moles of solute in 1L of solution)
Let's determine the volume of solution with density
Solution density = Solution mass / Solution volume
Solution volume = Solution mass / Solution density
Solution volume = 100 g / 1.1684 g/mL → 85.6 mL
For molarity, we need the volume in L. Let's make the unit change.
85.6 mL . 1 L/1000mL = 0.0856L
Molarity is 0.389 mol / 0.0856L → 4.54 M
No volcanoes are formed by tectonic plates down below the ground
The tiny positive<span> core of </span>an atom<span>; contains protons and neutrons. the paths in which electrons circle the nucleus according to the Bohr model. building blocks of matter represented by a symbol. </span>
Answer:
These thick-haired goats originate in Turkey
Explanation:
and are named after the country's capital, Ankara, historically known as Angora.
Answer: 
: Pure substance, Element
: Pure substance , Element
: Pure substance, Compound
Explanation:
Element is a pure substance which is composed of atoms of similar elements.It can not be decomposed into simpler constituents using chemical reactions.Example: 
and
Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.It can be decomposed into simpler constituents using chemical reactions. Example:
Heterogeneous Mixture : Mixture that has its different components mixed unevenly within the substance
. Example: Air
Homogeneous Mixture : Mixture that has its different components mixed evenly within the substance. Example: sugar dissolved in water
