What volume in L of a 0.32 M Mg(NO3)2 solution contains [x] g of Mg(NO3)2 ? The molar mass of Mg(NO3)2 is 148.33 g/mol

What is the coefficient in front of the O2 when the equation below is balanced (using only whole numbers and the lowest whole number ratio)? C2H4(g) + O2 (g) → CO2(g) + H2O (g)

What is the mass, in grams, of [x] × 1021 silicon atoms?

Which picture BEST represents a mixture?  

Consider the following reaction: Mg2+(aq) + Cu(s) → Cu2+(aq) + Mg(s). In this reaction, Mg2+(aq) is:

Consider the Haber-Bosch process for the synthesis of ammonia from its elements. Calculate the theoretical yield in moles NH3 from the complete reaction of [x] grams N2 in the presence of excess H2 gas according to the following balanced chemical equation: N2(g) + 3 H2(g) → 2 NH3(g)

A chemist carries out this reaction in the laboratory using 4.31 grams of zinc and an excess of sulfur:    Zn + S → ZnS From the balanced equation, she calculates that she should obtain 6.41 grams of zinc sulfide. However, she isolates only [x] grams of product. What is her percent yield for this reaction?

In this Lewis structure, which atom does not have a complete valence?  

Codes Sheet:       Ch1_DrMosab_Alignment.py Ch1_DrMosab_Truncation.py Ch1_1.3_DrMosab.py SVD (1).py Ch1_DrMosab_Alignment (1).py Ch1_DrMosab_Truncation (1).py Ch3_DrMosab_Compress.py DrMosab_Classwork1 (1).py Ch2_DrMosab_Burgers.py Ch2_DrMosab_OneWave.py Ch2_DrMosab_DFT (1).py Ch2_DrMosab_Heat_PDE.py Ch2_DrMosab_Spectrogram.py Ch2_DrMosab_2DFFT.py Ch2_DrMosab_Compress.py Ch2_DrMosab_Denoise.py Ch2_DrMosab_4Wavelet.py Ch2_DrMosab_WaveletCompress.py DrMosab_Classwork1 (2).py Ch3_DrMosab_Compress (1).py

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