Mixing charcoal, sulfur, and potassium nitrate together to make gunpowder will give you this type of mixture
What is a homogeneous mixture?
100
The element bromine is in group 7 of the periodic table it will have this many electrons and this charge
What is 7 electrons and a -1 charge
100
I have this many atoms in the compound H2O
What is 3 atoms?
100
The value for density is this with a mass of 20 g and a volume of 5 mL
What is 4 g/mL?
100
Lithium in the ionic compound lithium fluoride, will transfer this many electrons to fluorine.
What is 1 electron?
200
This type of change involves the combustion of wood
What is a chemical change?
200
The element nitrogen must gain these many electrons for it to reach a stable outer shell state of 8 electrons
What are 3 electrons?
200
Metals on the left side of the periodic table will look to do this with electrons to have more protons than electrons.
What is lose electrons?
200
The value for density is this with a mass of 50 g and a volume of 5 cm by 4 cm by 2 cm
What is 1.25 g/cm^3?
200
Calcium would like to date oxygen in the compound CaO, because oxygen needs this many electrons from calcium to achieve the octet rule of 8 valence electrons.
What is 2 valence electrons?
300
I'm the corrosive HCl and I'm made of two or more elements.
What is a compound?
300
The element hydrogen is an exception to the octet rule in that it has this many valence electrons.
What is 1 valence electron?
300
The compound H2SO4 has these many atoms
What are 7 atoms?
300
This density value will cause objects to float in water
What is less than 1 gram/mL?
300
SO4 says he is this type of compound?
What is a covalent compound?
400
Anything that can't be broken down into simpler substances by chemical means would be classified as this.
What is an element?
400
This group of the periodic table has achieved the octet rule and does neither gain or lose electrons.
What is group 8?
400
All elements in group 5 of the periodic table starting with Nitrogen have these many valence electrons.
What is 3 valence electrons?
400
This is the value for mass when the density is 10 g/mL and the volume is 2 mL.
What is 20 grams?
400
In the ionic bond CaF2, calcium transfers these many electrons to each fluorine atom with 7 valence electrons
What is 1 electron each?
500
2 atoms of the same element such as fluorine, chlorine, bromine, and iodine are all classified as these.
What are molecules?
500
I'm sulfur and I have this many valence electrons with this charge.
What are 6 valence electrons with a -2 charge?
500
Fluorine has this many valence electrons with this charge in group 7 of the periodic table
What is 7 valence electrons with a -1 charge?
500
The value for volume is this with a mass of 50 g and a density of 10 g /mL
What are 5 mL?
500
The covalent compound SiO2 would like to do this with electrons.