Totototono
21.11.2019 •
Chemistry
What is the difference bettween a chemical change and a physical change
Solved
Show answers
More tips
- B Business and Finance How to Get Your Money Back When Lending? Top 7 Ways...
- S Sport How to Learn Swimming? Simple Tips for Beginners...
- P Photography and Videography Understanding HDR: How It Works and Why You Need It...
- G Goods and services Which TV is better - LCD or Plasma?...
- S Sport How to Learn to Pull Up on Monkey Bars?...
- L Leisure and Entertainment Scrapbooking: What is it and Why is it Becoming More Popular?...
- C Computers and Internet Where did torrents.ru move to?...
- B Business and Finance Understanding Cash Flow: What It Is and How It Works...
- C Computers and Internet What Are Peers and Seeds in Torrenting?...
- H Health and Medicine 10 Simple Techniques on How to Boost Your Mood...
Answers on questions: Chemistry
- C Chemistry Easy Points Give the abbreviated (noble gas) electron configuration for: Zr A.[Kr]5s4 B.5d2 C.[Kr]5s25d2 D.[Kr]5s24d2 E.4d2...
- C Chemistry Can someone please help me it s already past due...
- C Chemistry H2 (g) + Cl2(g) → 2HCl (g) + 185kJ How many kilojoules of heat energy is released if 2.5 moles of H2 reacts with an excess of chlorine gas?...
- C Chemistry 1. How many grams are there in 7.5 x 1023 molecules of H2SO4? 2. How many molecules are there in 122 grams of Cu(NO3)2? 3. How many moles in 28 grams of CO2? 4. What is the mass...
- C Chemistry NEED HELP ASAP GIVING 20 POINTS AND BRAINLIEST Given 18.5 grams of CHA and 24.0 grams of Oz the following reaction occurs. Calculate the number of grams of carbon dioxide that...
- C Chemistry 4NH3(g) + 6NO(g) → 5N2(g) + 6H2O(g) With Steps...
- C Chemistry Calculate the number of moles present in 9.50 of co2...
- M Mathematics Given the circle with the equation (x + 1)2 + y2 = 36, determine the location of each point with respect to the graph of the circle. in your final answer, state whether each point...
- M Mathematics What is the length of the hypotenuse of the triangle?...
- E English What can be inferred from the following lines from the play everyman...
Ответ:
In a physical change, an object can return to it's previous shape, state, size, etc.
In a chemical change, an object cannot return to it's previous shape, state, size, etc.
Ответ:
Changes in state or phase (melting, freezing, vaporization, condensation, sublimation) are physical changes. Examples of physical changes include crushing a can, melting an ice cube, and breaking a bottle.
A chemical change, also known as a chemical reaction, is a process where one or more substances are altered into one or more new and different substances. In other words, a chemical change is a chemical reaction involving the rearrangement of atoms.
Explanation:
Ответ:
Theodor Schwann and Matthias Jakob Schleiden
Explanation:
Theodor Schwann and Matthias Jakob Shleiden are German scientists that were the first to observe cells.
Around 1850, a German doctor named Rudolf Virchow was studying cells under a microscope, when he happened to see them dividing and forming new cells.