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- 1. Math Response
What is the mass of the Chlorine gas?
2NaCl + F2 ➜ 2NaF + Cl2
5.4g + 3.2g = 4.9g + ____g
- 2. Drag and Drop
In the equation for burning magnesium (2Mg + O2 -> 2MgO) what are the products? (a)
2MgO22Mg + O22MgO - 3. Drag and Drop
In what state of matter are the atoms moving the slowest? (a)
SolidLiquidGasPlasma - 4. Multiple Choice
How does adding heat affect liquid water?
it becomes a solid
its molecules move faster
new substances form
a color change is produced
- 5. Drop Down
What is the symbol for Hydrogen? (a)
HyHeHN - 6. Drop Down
What is a positivly charge atom called? (a)
cationanion - 7. Drag and Drop
What is a negatively charged atom called? (a)
AnionCationIon - 8. Multiple Choice
What is a valence electron?
an electron that is found in the outermost shell of an atom.
an electron found in the innermost shell of an atom.
an electron found in the middle shell.
- 9. Multiple Choice
What are the reactants in the chemical equation pictured?
CH4 and CO2
CH4 and O2
CO2 and H2O
O2 and H2O
- 10. Multiple ChoiceWhat is a coefficient?The small number on the right of the chemical symbol.The large number to the left of a formula.
- 11. Multiple ChoiceWhat does the Law of Conservation of Mass state?Matter cannot be gained or lost in a chemical reaction.Matter can only be lost in a chemical reaction.Matter can only be gained in a chemical reaction.Matter can be gained and lost in a chemical reaction.
- 12. Math Response
How many valence electron does Beryllium have?
- 13. Drag and Drop
Which subatomic particle has NO CHARGE? (a)
ProtonsNeutronsElectronsNucleus - 14. Drag and Drop
Which subatomic particle has a POSITIVE charge? (a)
ProtonsNeutronsElectronsNucleus - 15. Drop Down
Which subatomic particle has a NEGATIVE charge? (a)
ProtonsNeutronsElectronsNucleus - 16. Drag and Drop
Which subatomic particle tells you the identity of the Element? (a)
ProtonsNeutronsElectronsNucleus - 17. Multiple Choice
What is the name for this group of elements?
Alkali
Halogens
Noble Gases
Alkali-Earth
- 18. Math Response
In the formula 2C6H12O6, what is the Coefficient?
- 19. Multiple Choice
Anything that has mass and takes up space.
atom
colloid
compound
matter
- 20. Drag and Drop
This could be the dot diagram of (a)
Mg, group 2.Cl, group 17.C, group 14.O, group 16. - 21. Multiple ChoiceSigns that a chemical change has occurred includea change in colorthe release of bubblesthe production of an odorall of the above
- 22. Multiple ChoiceThe density of water is.1 g/cubic cm10g/cubic cm1.0 g/cubic cm0 g/cubic cm
- 23. Math ResponseWhat is the number of protons that the element in this image contain?
- 24. Multiple ChoiceWhat two types of measurements make up DENSITY?Mass and VolumeTemperature and MassGrams and CentimetersVolume and Weight
- 25. Multiple ChoiceThe easiest way to tell if a change is physical or chemical is to ask yourself?Did it break?Did it change color?Did it create a new substance?Did it look cool?
- 26. Drop Down
Balanced or Unbalanced? (a)
BalancedUnbalanced - 27. Multiple ChoiceWhat does the nucleus of an atom contain?Electrons and neutronsProtons and neutronsNeutrinos and positronsDNA and RN
- 28. Multiple Choice
How does thermal energy play a role in particle motion and changes of state?
Thermal energy is a term that refers to temperature
Increasing an object's thermal energy increases particle motion and can cause a change of state.
Decreasing an object's thermal energy increases particle motion and can cause a change of state.
Thermal energy is the energy added from a heat source.
- 29. Multiple Choice
How many oxygen atoms are in this chemical formula?
6 oxygen atoms
2 oxygen atoms
3 oxygen atoms
4 oxygen atoms
- 30. Multiple ChoiceThe horizontal row on the periodic table is called agroupfamilyperiodatomic number
- 31. Multiple ChoiceThe atoms along the staircase are calledmetalsnonmetalsmetalloidsnoble gases
- 32. Multiple Choice
Ions form because atoms either gain or lose
electrons
protons
neutrons
quarks
- 33. Multiple Choice
Evidence that a chemical reaction has occurred includes which of the following?
change in color
sudden temperature change
formation of a precipitate
a change of state
- 34. Multiple Choice
The most reactive metals are in which group?
The Alkali Metals
The Alkaline Earth Metals
The Boron Group
The Transition Metals
- 35. Multiple ChoiceIn an exothermic reaction, heat is ...
absorbed
released
- 36. Multiple Choice
In an endothermic reaction, heat is ...
Absorbed
released
- 37. Multiple Choice
A substance that increases the rate of a reaction without being used up during the reaction is called a
catalyst
product
reactant
solute
- 38. Multiple ChoiceIn what type of bond are electrons gained or lost? This happens between a metal and a non-metal?ioniccovalentsubatomic
- 39. Multiple ChoiceIn this type of bond electrons are shared by two non-metalsioniccovalentsubatomic
- 40. Multiple ChoiceThe Law of Conservation of Matter saysMatter can be created, but not destroyedmatter can be destroyed, but not createdmatter cannot be created or destroyed
- Answer choicesTagsAnswer choicesTags