Pairs of electrons in water and nitrogen
How do the unshared pairs of electrons in water and nitrogen, affect the bond angles between the central atom and the attached atoms
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A 56.7 kg spacewalking astronaut pushes off a 653.0 kg satellite, exerting a 199.0 N force for the 0.184 s it takes him to straighten his arms. How far apart are the astronaut and the satellite after 5.24 min?
What is the Supreme Court case where there was a ruling that homework grades can't count against a student due to limited resources in the home?
A mixture of 82.0 g of magnesium (24.31 g/mol) and 350 g of iron(III) chloride (162.2 g/mol) is allowed to react. What mass of magnesium chloride (95.21 g/mol) can be formed?
What is the entropy change for a particle in this system if the final number of microstates is 0.617 times that of the initial number of microstates?
A box is sliding up an incline that makes an angle of 11.8 ° with respect to the horizontal. The coefficient of kinetic friction between the box and the surface of the incline is 0.147. The initial speed of the box at the bottom of the incline
what is the pH of the mixture when 25 mL of 0.200 M KOH has been added to 25.00 mL of 0.200 M acetic acid
Luminol is a reagent used to detect blood at crime scenes. A technician prepares a stock solution by adding 6.0 g of luminol (molar mass=177 g/mol) to 50.0 mL of H2O. What is the molarity of the stock solution?
A mass of 2.50 g of hydrated copper(II) sulfate is placed in a crucible and heated. On heating, 1.59 g of whiteanhydrous copper(II) sulfate is left behind. Determine the ratio of water to copper(II) sulfate.
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