CER/LAB SAFETY/Scientific Design
The motion used to "smell" chemicals in a lab.
What is wafting?
The atomic mass and charge of a carbon atom with 6 electrons, 6 neutrons, and 10 electrons.
What is 12 amu and a 4- charge?
The horizontal rows on the periodic table.
What is a period?
NaBr is this type o compound.
What is an ionic compound?
The molar mass of CO2. C=12g/mol O=16g/mol
What is 44 g/mol?
What is volume?
What is 5?
The type of metals in the middle of the periodic table.
What are transition metals?
The name of this compound C2H6.
What is dicarbon hexahydride?
The molar mass of ZnCl2.
What is 136 g/mol?
The amount of significant figures in this answer. Answer: 302.0 mL
What is 4 sig figs?
The type of mixture that is best represented by salsa.
What is a heterogenous mixture?
The group of elements that form 1- ions.
What are the halogens?
The lewis dot diagram of BCl3.
Cl-B-Cl
l
Cl
The moles in 40 grams of Carbon.
What is 3.33 moles?
In an experiment, a student wants to test if caffeine consumption results in better test scores. The student gives one test group a cup of coffee before a test and another group a cup of water. The different liquids given to the test group before the assessment is?
What is the independent variable?
The type of mixture best represented by milk.
What is a homogenous mixture?
Atomic mass _____ from right to left across the periodic table.
What is increases?
The type of compound that conducts electricity when dissolved in water.
What is an ionic compound?
The number of atoms in a mole of carbon.
What is 6.022x10^23?
In an experiment, a student wants to test if caffeine consumption results in better test scores. The student gives one test group a cup of coffee before a test and another group a cup of water. The length of the test is this type of variable.
What is the control variable?
How many valence electrons are there in a H, C, and O atom combined?
What is 11 valence electrons?
This property increases from left to right across the periodic table.
What is electronegativity?
The formula for Lead tetrabromide.
What is PbBr4?
The grams in 3 moles of SiF4.
What is 312 grams?