Question

1. Balance the following nuclear equations a) 194        190               Pt -> Os + ___________ 78      &nbs

1. Balance the following nuclear equations

a)

194        190         

     Pt -> Os + ___________

78           76

b)

228                                  0

     Ra -> _________ +   e

88                                   -1

2.

Predict the formula when the following monatomic ions combine

a. Ca and S _______________

b. Mg and Br _________________

c. K and N_____________________

d. Al and O _______________

e. Na and F ______________________

3.

Predict the formula of the following containing polyatomic ions

a. Ca and PO4-3 ______________

b. Al and OH-1 _________________

Name the following compounds containing polyatomic ions

c. (NH4)2O ______________

d. Mg(NO3)2 ____________________

4. How many grams are in 1.4 moles of Ca(NO3)2?

5. How many moles are in 25 g of CaCl2?

6. What is the percent composition of Al(OH)3?

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Net Ionic Equations In many chemical reactions of two or more compounds, ions are present in...
Net Ionic Equations In many chemical reactions of two or more compounds, ions are present in the solution that do not participate in the reaction. These ions, known as spectator ions, can be removed from the chemical equation describing the reaction. A chemical equation that has the spectator ions removed is known as a net ionic equation. Reactions between ionic compounds often result in the precipitation of an insoluble compound. Spectator ions and precipitation products of a chemical reaction can...
Balance the following equations by adding coefficients.   Do not leave blank spaces – use a “1”...
Balance the following equations by adding coefficients.   Do not leave blank spaces – use a “1” if necessary. Identify the type of reaction in the right column. ____H4As2O7 → ____As2O5 + ____H2O                                                                                       ____N2 + ____O2 →____N2O                                                                                                             ____Ca(ClO3)2 → ____CaCl2 + ____O2                                                                                                                      ____CuSO4 + ____KCN → ____Cu(CN)2 + ____K2SO4                                                                 ____PbCrO4 + ____HNO3 → ____Pb(NO3)2 + ____H2CrO4                                                                        ____Na2O + ____CO2 → ____Na2CO3                                                                                                                        ____TiCl4 + ____Mg → ____MgCl2...
1. For each of the following, explain whether the substances can form a solution or not....
1. For each of the following, explain whether the substances can form a solution or not. A. NH3 and NaCl CH4 B. KBr C4H10 C. CO2 2. Classify the following compounds as strong electrolytes, weak electrolytes or non-electrolytes based on their dissolution reactions in water. A. C6H12O6(s)→C6H12O6(aq) B. Na3PO4(s)→3 Na(aq)+PO43(aq) C. AgCl(s)↔Ag+(aq)+Cl+(aq) D. Mg(NO3)2(s)→Mg2+(aq)+2 NO3-(aq) 3. Write the balanced total ionic equation and net ionic equation for the reaction that occurs when and (NH4)2CO3(aq) and MgSO4(aq) are mixed. 4. What...
Nomenclature lab: will choose best answr NM NM = nonmetal -3 -2 -1 NM +1 +2...
Nomenclature lab: will choose best answr NM NM = nonmetal -3 -2 -1 NM +1 +2 md = metalloid md NM NM NM NM NM +1 +2 +3 md NM NM NM NM +1 +2 +2 md md NM NM NM +1 +2 +1 md md NM NM +1 +2 md NM +1 +2 Type I Binary Ionic Compounds Type I binary ionic compounds contain a metal and a nonmetal AND the metal that is present only forms one type...
1. Given the following reaction     2C2H6(l)   +      7 O2(g)   ®           4CO2(g)      +     
1. Given the following reaction     2C2H6(l)   +      7 O2(g)   ®           4CO2(g)      +        6H2O(l) How many moles of water are produced when 4.5 moles of oxygen react?        (Hint: Use slides 5-8) 2. Given: I2     +    3 F2      ®     2 IF3 How many moles of I2 are needed to form 3 moles of IF3? How many moles of F2 are needed to form 10 moles of IF3? How many moles of I2 are needed to react with 3.5 moles of F2?        ...
Which of the following is an acid based reaction? Pb(NO3)2+2KI->2KNO3+PbI2 2Mg+O2->2MgO C2H8+5O2->3CO2+4H2O H2SO4+2KOH->K2SO4+2H2O Place the correct...
Which of the following is an acid based reaction? Pb(NO3)2+2KI->2KNO3+PbI2 2Mg+O2->2MgO C2H8+5O2->3CO2+4H2O H2SO4+2KOH->K2SO4+2H2O Place the correct coefficients to balance the reaction below: ____CH4 + ____O2→ ____CO2 + ____H2O_____ H2CO3 --> H2O + CO2 is a Decomposition reaction Single replacement reaction Combustion Reaction Synthesis Reaction Double replacement reaction Balance the following reaction ___Al + ___O2→ ___Al2O3 2,1,1 4,3,2 2,3,1 5,3,2 Mg + 2HCI->MgCI+H2 How many grams of H2 will be produced from 12 grams of Mg 3.0 2.0 1.0 4.0 Balance...
1-Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction free energy of...
1-Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction free energy of the following chemical reaction: Round your answer to zero decimal places. N2(g)+3H2(g)---2NH3(g) Round your answer to zero decimal places. 2-Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy of the following chemical reaction: →+4H2O2lPbSs+PbSO4s4H2Ol Round your answer to zero decimal places. substance Δ Hf ° (kJ/mol) Δ Gf ° (kJ/mol) S ° (J/mol∙K) Aluminum Al3+ (aq) --- -485.0 ---...
a)How is it possible to determine if CaCO3 is Cl- free after synthesis? b)How can the...
a)How is it possible to determine if CaCO3 is Cl- free after synthesis? b)How can the Cl- ions be remove from CaCO3 after synthesis? I should answer the questions from the following experiment but if you know the answer and you are sure, yo do not need to read experiment. Please answer correctly because i hav no chance to make wrong :(((( Physical and Chemical Properties of Pure Substances Objective The aim of today’s experiment is to learn handling chemicals...
1) Describe an example of each of the following that may be found of your kitchen:...
1) Describe an example of each of the following that may be found of your kitchen: Explain how your choice falls into this category, and if there is a chemical name or symbol for it, provide that as well. Provide a photo of your example with your ID card in it. a) a compound b) a heterogeneous mixture c) an element (symbol) Moving to the Caves… Lechuguilla Caves specifically. Check out this picture of crystals of gypsum left behind in...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT