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