10) Select 2 that apply. How does carbon dissolve into water? carbonic acids solid carbon charcoal gaseous carbon dioxide diamond form
True or False: Both elements and compounds are found on the periodic table. True False
4. Explain what happens to each of the following as the atomic masses of the elements in the periodic table increase: a. the number of protons __ b. the number of electrons __ c. the number of atoms in 1 mol of each element
A reaction between an acid and a base forms what products? Water Salt Salt and Water A covalent compound
What is the most stable ion formed by phosphorous? -1 +3 -3 -2
4. Explain why the lattice energy-the amount of energy necessary to break apart the lattice-of MgCl_(2) is greater than the lattice energy of NaCl. Coulomb's low which you may use in your answer, is F_(c)=k(q_(1)q_(2))/(r^2)
A Pure substance is made of one type of particles. Is B2 a pure substance? Explain Escriba su respuesta
What is the subunit of a polymer?
Which of the following is a heterogeneous mixture? Table Salt Oil and vinegar salad dressing Table sugar Baking soda
A student attempts to draw the electron configuration of an atom that has 7 electrons using orbital notation. Is the diagram correct or incorrect? square Which rule is violated? square
A solution is made with 100 milliliters of water, how much solute will dissolve if 200 milliliters is used by the student at the next table? Half as much solid can dissolve in the 200 mL One-fourth as much solid can dissolve in the 200 mL Twice as much solute can dissolve in 200 mL The same amount will dissolve in 200 mL as what dissolved in 100 mL
Which of the following represents a covalent molecule? SELECT ALL THAT APPLY a $CO_{2}$ b $Cl_{2}$ C He d $O_{2}$
Div 5. Calculate the number of moles in 18.0 g of sodium chloride (NaCl). 0.31 mole 1044 moles 3.2 moles 18 moles
Which noble gas does not possess a true octet? a helium b xenon c radon d argon
When the following equation is balanced, what is the sum of the coefficients? $\underline {\quad }C_{2}H_{4}+\underline {\quad }O_{2}\rightarrow \underline {\quad }CO_{2}+\underline {\quad }H_{2}O$ 11 7 6 8
Rost Lab: Single-Replacement Reactions occur when a more reactive element displaces a less reactive element compound. There is a table on the back of your periodic table labeled "Activity Series". Higher elements are more elements on the table In other words elements higher on the Activity series will replace elements lower in the seri elements will not replace higher elements. The speed and energy of the reaction is directly proportional to the dis two elements on the series. 3. Balance the following equations. a. $\underline {\quad }F_{2}+\underline {\quad }NaCl\rightarrow \underline {\quad }Cl_{2}+\underline {\quad }NaF$ b. $\underline {\quad }Li+\underline {\quad }MgCO_{3}\rightarrow \underline {\quad }Mg+\underline {\quad }Li_{2}CO_{3}$ c. $\underline {\quad }K\quad +\underline {\quad }Al(OH)_{3}\rightarrow \underline {\quad }Al\quad +\underline {\quad }KOH$ d. $\underline {\quad }Br_{2}+\underline {\quad }CaCl_{2}\rightarrow \underline {\quad }Cl_{2}+\underline {\quad }CaBr_{2}$ e. $\underline {\quad }Zn+\underline {\quad }Cu_{3}(PO_{4})2\rightarrow \underline {\quad }Cu+\underline {\quad }Zn_{3}(PO_{4})_{2}$
Predict the products of the reaction below $Mg+Cu(NO_{3})_{2}\rightarrow \underline {\quad }+\underline {\quad }$ $Cu+Mg(NO_{3})_{2}$ $Cu+MgNO_{3}$ $CuMg+NO_{3}$ $Mg_{2}NO_{3}+Cu$
A chemical substance that is present at the start of a chemical reaction Exothermic Enzyme activation energy Reactant
A solution contains 803.92 milligrams of glucose per 100 ml sample. The molar mass of glucose is $180.15g/mol$ What is the molarity of glucose in the sample? $\square $
3. What is the percent composition of $CO_{2}$
