MASS: generally a measure of an object's resistance to changing its state of motion when a force is applied. It is determined by the strength of its mutual gravitational attraction.
Molecular mass or molecular weight is the mass of a molecule.
Gram formula mass (a.k.a. molar mass) is defined as the atomic mass of one mole of an element, molecular compound or ionic compound. The answer must always be written with the unit g/mol (grams per mole).
Answer: for an object or gas or liquid to float in another there must be a difference in density
Explanation:
Helium has a density of 0.18 kg/m³ and air has a density of 1.29 kg/m^³. If a balloon is filled with helium it will float in air due to density differences
Archimedes' principle states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces
Answer: Amu is an atomic mass unit.
Answer:
The difference is the combining vowel
Explanation:
The Combining form needs the vowel to form, that is:
root word + combining vowel = combining form
<u>Root word</u>:
A root is a word that does not have a prefix in front of the word or a suffix at the end of the word. The root word is the main lexical unit of a word and a family of words, which carries the most significant aspects of semantic content and cannot be reduced to smaller components
<u>Combining form</u>:
Training process of words from two or more roots or simple words.
When the word includes a cultured base and a patrimonial base, we will consider derived word. For example, hypermarket, bi-monthly
Beryllium has an atomic number of 4, so a beryllium atom has 4 protons in its nucleus.
Since the charge of 1 proton is +1 and neutrons in the nucleus have 0 charge, the correct answer is (4) +4.
Hope this helps~
