The relationship between the number of electrons in an atom's outer shell and the atom's tendency to bond is called the octet rule. What can you infer about the meaning of "octet?" It refers to negative charges. It refers to sets of eight valence electrons It refers to explosive substances. It refers to different states of matter.
Try these: square Ca+square O_(2)arrow square CaO
How many valence electrons does Helium Have? 2 Valence electron 3 Valence electron 5 Valence electron 4 Valence electron 1 Valence electron
Refrigerants absorb heat: Select one: A. By evaporating from a liquid to a vapor. B. By converting heat energy into additional refrigerant molecules. C. By rearranging their molecular structure to form a new compound. D. By condensing from a vapor to a liquid.
MISSED THIS? Read Section 14.7. You can click on the Review link to access the section in your eText. Determine [H_(3)O^+] in each acid solution.If the acid is weak. indicate the value that [H_(3)O^+] is less than. 1.25 H_(3)PO_(4) [H_(3)O^+]=1.25M [H_(3)O^+]lt 1.25M [H_(3)O^+]lt 3.75M [H_(3)O^+]=3.75M
How many grams of carbon dioxide gas could the same tank hold? square g
Predict the change in enthalpy (Delta H) of this reaction. Answer: A Delta His(-) ; endothermic B Delta His(+) endothermic C Delta His(-) ; exothermic D Delta His(+) ; exothermic E Delta H=0 thermoneutral
What is the molar mass of sucrose (C_(12)H_(22)O_(11)) 342.3g/mole 50.23g/mole 29.02g/mole 182.0g/mole 210.0g/mole
0.180 mol C_(2)H_(6) Express your answer using three significant figures.
Which of the following correctly gives the correct coefficients for the reaction below? N_(2)H_(4)+H_(2)O_(2)arrow N_(2)+H_(2)O 2,4,2,4 2,4,2,8 1,2,1,1 1,2,1,4 1,4,1,4
E What is the total atmospheric pressure if the partial pressures of $N_{2},O_{2}$ , and Ar are 6045 mm Hg. 162.8 mm Hg , 0.5 mm Hg. respectively?
What are the isotopes of lodine used for? Prevent tooth decay Plants and Agriculture Cancer Treatments Bone healing
There are more than 500 chemicals in marijuana, but about 100 of them are unique to the Cannabis plant, these are called cannabinoids. THIQs. opioids. butyrates.
d. What is the volume of 03620 mol He at STP?
Please answer in complete sentences: 5. What is the meniscus of a liquid and how does a scientist use the meniscus? __
Identify the correct chemical equation when copper(II) sulfate reacts with zinc to form zinc sulfate and copper? $CuSO_{4}+Zn\rightarrow Cu+Zn$ $CuSO_{4}+Zn\rightarrow ZnSO_{4}+Zn$ $CuSO_{4}+Zn\rightarrow CuSO_{4}+Zn$ $CuSO_{4}+Zn\rightarrow ZnSO_{4}+Cu$
Which of the following species can be Bronsted -Lowry acids? Check all that apply. $SO_{4}^{2-}$ D $I_{2}$ $Cl^{-}$ $H_{2}SO_{4}$ None of the above
What mass of carbon (in g) is present in $8.02\times 10^{23}$ formula units of $Al_{2}(CO_{3})_{3}$ $\square $
Which of the following is a common property of acids? Corrosive Conducts electricity All of these Sour taste
3. ¿Cuál es la masa molar de $K_{2}SO_{4}$ (2 puntos)
