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8Sci_AtomicTheory
Atomic Theory of Matter
| Question | Answer |
|---|---|
| What is Carbon Dioxide an example of? | a compound |
| What is glucose an example of? | a chemical |
| What is titanium an example of? | an element |
| What would the chemical combination of Atom A with Atom B result in? | a molecule AB |
| What can be separated into simpler parts by physical means? | salt water |
| What is nitrogen an example of? | an element |
| What is magnesium an example of? | an element |
| Name 3 examples mixtures can be separated? | evaporation, filtering and magnetic separation |
| Which of the following is the heaviest? electron, proton, nucleus or neutron | nucleus |
| What series of activities would you use to separate swadust, water and iron fillings? | evaporation, then use a magnet |
| Does a proton, neutron or electron have a negative charge? | electron |
| What does orbitals contain? | a few fast-moving electrons |
| Is the nucleus of an atom always positively or negatively charged? | positively charged |
| Which has a greater atomic mass, Hydrogen or Neon? | Neon |
| What two elements make up water? | Hydrogen and Oxygen |
| What two elements make up ammonia? | nitrogen and hydrogen |
| What is salt an example of? | a compound |
| How many different elements are in this substance of methane, CH4? | two |
| What is an element? | the simplest form of matter |
| What is water an example of? | a compound |
| If propane has three carbon atoms and eight hydrogen atoms, what is the chemical formula? | C3H8 |
| What is a substance? | two compounds joined by physical means |
| What best describes a substance? | a mixture |
| How do elements combine to form a compound? | elements always combine in specific ratios |
| How are the properties of elements related to the properties of the compounds they make? | the properties of the compound are completely different than the properties of the elements |
| The formula for glucose is C6H12O6. How many atoms are present in the glucose compound? | 24 |
| What is an example of a homogeneous mixture? | nitrogen gas and oxygen gas |
| What is a compound? | a pure substance containing elements that are chemically combined |
| What is a heterogeneous mixture? | it contains 2 or more types of particles which are easily distinguished |
| What is an example of a heterogeneous mixture? | a salad |
| Do carbon monoxide(CO) and carbon dioxide(CO2)have different properties? Why? | yes, because they contain the same elements in different quantities |
| What is the best example of a pure substance? | gold |
| What best describes the resulting compound when elements chemically combine? | it has different properties from the uncombined elements |
| Mixtures can be separated by physical means. What is NOT a way to separate mixtures? | stirring |
| What is glucose an example of? | compound |
| Which chemical compound contains the greater number of nitrogen (N) atoms? NH4NO3 or (NH4)3PO4 | (NH4)3PO4 |
| What has been created when you combine salt and water together? | a solution |
| What is true about the compounds carbon monoxide (CO) and carbon dioxide (CO2? | they have different properties because they contain the same elements in different quantities |
| How can scientists identify an element? | by looking at the structure of a single atom |
| What substance is held together by chemical bonds? | compounds |
| What is the compound potassium sulfate, K2SO4, composed of? | 2 atoms of potassium, 1 atom of sulfur, and 4 atoms of oxygen |
Created by:
masonteach
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