The answer to this would be a physical change. Physical changes are changes that affect the form of a chemical substance, but not the chemical composition itself. Hope this helped!
(a) Pushing the spring down gives it stored mechanical energy that turns into motion
Explanation:
Pushing on the spring causes the mechanical energy, of pushing on the spring, to be stored in the spring through potential elastic energy. Due to the elasticity of the spring, when the spring is released and resumes its initial shape the stored energy is released and can be used to do work such as motion.
The empirical formula of c12h24o12 is a carbohydrate.
<h3>Carbohydrate</h3>
A carbohydrate is a biomolecule made up of carbon (C), hydrogen (H), and oxygen (O) atoms, often with a hydrogen-oxygen atom ratio of 2:1 (as in water), and so having the empirical formula Cm(H2O)n (where m may or may not be different from n). All molecules that meet this exact stoichiometric criterion are not, however, automatically categorized as being carbohydrates.
The term is most frequently used in biochemistry, where it is used as a synonym for saccharide, a class of compounds that includes sugars, starches, and cellulose. The four chemical categories of saccharides are monosaccharides, disaccharides, oligosaccharides, and polysaccharides. The smallest carbohydrates, monosaccharides and disaccharides, are sometimes referred to as sugars.
Learn more about carbohydrate here:
brainly.com/question/14614055
#SPJ4
1
2
5
Explanation:
start from the left tor right
Fire expends ENERGY which is a by-product of conversion of matter.
<span>The calories or therms of a fire equal a certain amount of mass. </span>
<span>When MATTER (Electron) and ANTI-MATTER (Positron) collide they don't inhillate each other with nothingness, they always realse TWO gamma particles. </span>
<span>The ENERGY of the TWO gamma particles CONSERVES the MASS of the ELECTRON and The POSITRON </span>
<span>This is what Einstein meant by E=mc2 </span>
<span>ENERGY has physical properties than can be measured. </span>
<span>These properties equal the mass that no longer exists after you measure the mass BEFORE and AFTER </span>
<span>The AFTER MASS + the ENERGY MUST equal the BEFORE MASS to at least 99.999% </span>
<span>You must take heat, light and other PARTICLES into consideration. </span>
<span>Their MASS plus their ENERGY</span>
