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Why electrons in a nitrogen-phosphorus covalent bond are not shared equally which atom do electrons spend more time around
Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.
A compound has a pKa of 7.4. To 100 mL of a 1.0M solution of this compound at pH 8 is added 30 mL of 1.0M HCl. what is the pH of the resulting solution?
What fraction of the O3 will have reacted when the rate falls to one-half of its initial value?
a sample that weighs 25.12 g contains 6.022 x 1023 particles. if 25.00 of the total number of particles are argon atoms
How do you calculate H2 volume needed when you are given power output required is 1kW, V .78, run for .6 hours? I only have a rate equation to work
A drop of oil volume 0.05 cm3 is released from a medicine dropper on to a calm surface of a pond where it spreads out to cover an area of 40 cm2. Calculate the diameter of an oil molecule.
Liquid water has a specific heat of 4.18 J/g-K. If an insulated container holds 250 g of water at room temperature (25 C). What would be the final temperature of the water if 15 kJ of heat is added to the water
a 34.9-g sample of an unknown metal initially at 232.8oc is immersed in a 17.0-g sample of water specific heat 4.184 j
thomas poured 25 ml of 0.60 m hcl into a large bottle. he then added enough water so that the new diluted concentration
The vapor pressure of water at this temp is 22.4 torr. How many grams of each product were formed and how many grams of 2-heptene and oxygen did you start? R= 0.0820578 L*atm/K*mol.
Dry the hydrate as instructed in the lab procedure, noting down it's mass until it appears to no longer decrease (no more water bound in the sample).
indicate whether each of the following statements indicates an acid or a base: a)makes a red ant sting burn. b)produces OH^- in water. c) has a soapy feel. d) turns litmus red.
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