Answer:
Atoms are electrically neutral because they have equal numbers of protons (positively charged) and electrons (negatively charged).
Explanation:
Energy is directly proportional to frequency and energy inversely proportional to wavelength. Wavelength is inversely proportional to frequency.
The density of the wood : 1.45 g/cm³
<h3>Further explanation </h3>
Density is a quantity derived from the mass and volume
Density is the ratio of mass per unit volume
With the same mass, the volume of objects that have a high density will be smaller than objects with a smaller type of density
The unit of density can be expressed in g/cm³ or kg/m³
Density formula:
ρ = density
m = mass
v = volume
Answer:
true
covalent bonds are between non metals and nonmetals. and they are sharing electrons.
Answer:
Precipitate
Explanation:
Precipitation is actually a chemical reaction that occurs when a solid form is produced from a solution. The solid form is called the precipitate if precipitation occurs in a liquid solution. Precipitates formed are generally, insoluble. This type of reaction can be used to remove salts from a solution, like in the process of purification.