Which is another term for petroleum? A. Carbon dioxide B. Natural gas C. Oil D. Coal
The symbol "mg'means what? minigrams milliliters milligram microgram
Scientific Method An experiment is carried out to determine if the boiling point of distilled water is affected by the addition of different types of solutes. Describe a control group for this experiment.
What type of chemicals (agent)are in multipurpose dry chemical extinguishers? A. Dry powder B. Ammonium phosphate C. Sodium bicarbonate D. Potassium bicarbonate
Which of the following is a molecule? A) carbon B) carbon dioxide C) sugar D) salt
In a chemical reaction , which aspect of the reactants changes? (1 point) arrangement of the atoms name of each element nuclei total mass
Which reaction is expected to release the greatest amount of energy? A (}_{0)^1n+_(92)^235Uarrow _(52)^137Te+_(40)^97Zr+2^1n B (}_{1)^1H+_(1)^2Harrow _(2)^3He C (}_{0)^1n+_(92)^235Uarrow _(56)^142Ba+_(36)^91Kr+3_(0)^1n (C) D 2Harrow H_(2)
What is the enthalpy change (Delta HDelta H) for the reaction H_(2)(g)+Cl_(2)(g)arrow 2HCl(g) if the bond energies are: H-H=436kJ/mol Cl-Cl=243kJ/mol H-Cl=431kJ/mol +183kJ/mol -183kJ/mol -862kJ/mol +862kJ/mol
Which of the following ions possess a dipole moment?Check all that apply. IF_(4)^+ IBr_(4)^+ IBr_(2)^+ IBr_(4)^- None of the above
Coefficients in a reaction equation provide the relative numbers of these chemical species. True False
Which of the following alcohols will be used in this lab? Butanol Propanol Ethanol Methanol
Acidic dyes work best in low pH environments. are used for staining negatively charged molecular structures. are negatively charged and work best at low pH. are lipid soluble. are negatively charged.
How many protons does carbon have? 40 39.09 6 12
Measurements taken with a spectrometer require a __ to eliminate background readings from components other than what is being measured in the sample. Select one: a. sample b. replicate c. treatment d. blank
11. [Periodic Table and Periodic Law] Which of the following elements has the greatest tendency to attract electrons in a chemical bond? A. Carbon B. Oxygen C. Fluorine D. Nitrogen
-Develop possible solutions - Brainstorming - think of as many solutions as possible of \( \mathrm{CO}_{2} \) wooden car
8. Every chlorine atom has: 7 electrons 17 neutrons a mass number of 35 an atomic number of 17
1. $6P_{4}O_{10}+H_{2}O$ $3H_{3}PO_{4}$
What is the maximum number of electrons that can occupy a given orbital if they have different spins? 4 2 1 3
How will we know how many electrons are in each ATOM? Type your answer here
