Balance the following equation. if the coefficient is one, put 1 in the blank. [fish5]Mg +[fish6]Cr(NO3)3 –> [fish7]Mg(NO3)2 + [fish8]Cr
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Convert the following numbers expressed in scientific notati…
Convert the following numbers expressed in scientific notation to ordinary decimal numbers. 6.99723 x 105 [fish5] 2.333 x 102 [fish6] 3.775 x 10-3 [fish7] 5.1012 x 10-6 [fish8]
What is the difference between a strong acid and a weak acid…
What is the difference between a strong acid and a weak acid?
An unknown liquid is poured into a graduated cylinder. Fifty…
An unknown liquid is poured into a graduated cylinder. Fifty milliliters of the fluid weighs 40 grams. What is the density of the liquid?
Write the formula for the conjugate base of each of the foll…
Write the formula for the conjugate base of each of the following: NH4+ [ans5] H2S [ans6] HNO2 [ans7] HC2O4- [ans8]
Convert the following ordinary decimal numbers to scientific…
Convert the following ordinary decimal numbers to scientific notation. Note – you will not be able to enter superscripts so use brackets for the exponent. For example, 1.3 x 103 would be entered as 1.3 x 10^3 1,346.41 [fish1] 429,209 [fish2] 0.000002056 [fish3] 0.00488 [fish4]
Write the formula for the conjugate acid of each of the foll…
Write the formula for the conjugate acid of each of the following: HC2O4- [ans1] SO32- [ans2] BrO- [ans3] NH2- [ans4]
Write the chemical formula for a compound made up of two pho…
Write the chemical formula for a compound made up of two phosphorous atoms and five oxygen atoms. Name the compound. Formula [joe1] Name [joe2] Is it an ionic or molecular compound? [joe3]
For the following equation determine the oxidation number fo…
For the following equation determine the oxidation number for each atom in the equation and identify whether the reaction is a redox reaction or not. If the reaction is redox, identify what is oxidized, what is reduced, the oxidizing agent, and the reducing agent. If it is not a redox reaction, put NA those answer blocks. HCl + NH3 –> NH4Cl Reactants Oxidation Numbers: N [fay1] H [fay2] Cl [fay3] Product Oxidation Numbers N [fay4] H [fay5] Cl [fay6] Is this a redox reaction? [fay7] If it is, what is element is oxidized? [fay8] What element is reduced? [fay9] What element is the oxidizing agent? [fay10] What is the reducing agent? [fay11]
Your instructor sends you into the chemistry stockroom to ge…
Your instructor sends you into the chemistry stockroom to get a bottle as acid. What class of acid are you looking for?