How much CO_(2) (L) is produced when 2.10 kg of sodium bicarbonate reacts with excess hydrochloric acid at 25.0^circ C and 1.23 atm? 4.17times 10^1 4.17times 10^-1 4.98times 10^-1 4.98times 10^2 3.50
In general, the oxidation of secondary alcohol will produce __ phenol ketone carbocation carboxylic acid
The molecular geometry of CO is linear trigonal pyramidal tetrahedral V-shaped trigonal planar
At a certain temperature the solubility of strontium arsenate, Sr_(3)(AsO_(4))_(2) is 0.0530g/L What is the K_(sp) of this salt at this temperature? K_(sp)=square
4. List four elements that always obey the octet rule. List two elements which do not typically obey the octet rule.
Many neon lights today contain neon and mercury. True False
Which answer defines exothermic reaction? a process in which energy is released as heat a process in which energy is absorbed as heat a process in which energy is stored and released a process in which energy is not present in a system
When 1.25 g of a metal absorbs 87.4 J of heat, its temperature increases by 65.9^circ C What is the specific heat capacity of the metal? Select the correct answer below: 1.06(J)/(g^circ )C 1.66(J)/(g^circ )C 0.943(J)/(g^circ )C 0.603(J)/(g^circ )C
What is the molecular geometry of a molecule in which the central atom has one lone pair and four single bonds? T-shaped Trigonal pyramidal Seesaw Square planar
According to the following balanced reaction equation: 2Na(s)+2H2O(l)arrow 2NaOH(aq)+H2(g) Sodium undergoes: reduction by gaining electron. oxidation by gaining electron. oxidation by losing electrons. reduction by losing electrons.
Which best compares and contrasts how John Newlands and Dmitri Mendeleev organized eleme Both Newlands and Mendeleev arranged elements according to their chemical properties, but used atomic mass as well. Both Newlands and Mendeleev arranged elements according to their atomic masses, but only chemical properties as well. Both Newlands and Mendeleev organized elements into groups, but only Newlands used a tak columns. Both Newlands and Mendeleev organized elements into a table with rows and columns , but ol named different groups of elements.
The following chemical reaction takes place in aqueous solution: $FeBr_{2}(aq)+(NH_{4})_{2}S(aq)\rightarrow FeS(s)+2NH_{4}Br(aq)$ Write the net ionic equation for this reaction.
How many atoms would be in 3 moles of Oxygen? (3) $(6.02\times 10^{24})$ of 0 atoms (2) $(6.02\times 10^{23})$ of 0 atoms (3) $(6.02\times 10^{23})$ of 0 atoms (4) $(6.02\times 10^{23})$ of 0 atoms
A chemical equation is balanced when: A The number of atoms of each element is the same on both sides B The coefficients are all "1" on both sides C The coefficients add up to the same number on both sides D The subscripts are all identical on both sides
14. What is the concentration of $H_{3}O^{+}$ ions in the 0 .003 M $H_{2}SO_{4}$ solution? What is the pH of this solution?
The products of the reaction: $Ag+HCl\rightarrow $ ? are: A $AgCl_{3}$ and $H_{2}$ B AgH and $Cl_{2}$ C no reaction
What are the two types of luster? Shiny and Dull Metallic and Non-metallic Earthy and Non-Earthy Dark and Light Colored
$2Na+2H_{2}O\rightarrow 2NaOH+H_{2}$ If we start with 20 moles of Na, how many moles of NaOH will be produced? A 10 moles B 5 moles C 20 moles D None of the above
When sugar is burned , water vapor and carbon dioxide are produced. A sugar molecule has a specific number of carbon, hydrogen, and oxygen atoms. Use the balanced chemical equation to identify the number of carbon , hydrogen, and oxygen atoms in sugar. $sugar+12O_{2}\rightarrow 11H_{2}O+12CO_{2}$ Sugar has $\square $ carbon atoms. Sugar has $\square $ hydrogen atoms. Sugar has $\square $ oxygen atoms.
Elsa has a jar of honey that was left outside on a hot summer day. She notices that there are now sugar crystals at the bottom of the jar.What type of solution is the honey? unsaturated saturated supersaturated polyunsaturated
