12/16/19

I need help with this problem, please!
A small city has a population of 34000 in 1994. The population growth after 1994 is modeled by the following function where  is the number of years after 1994.P(t)=34000e^0.07tDuring what year will... more
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12/15/19

Which of these molecules contain polar bonds, and which contain nonpolar bonds?

Water, Ozone, Carbon Dioxide, and Oxygen
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12/15/19

Chemistry teacher gave us this question
Density of iron is 7.87 g/cm3. A student records the mass of a 20.00-cm3 block of iron as 153.8 grams. What is the percent error for the densisty measurement?
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12/14/19

Draw a Lewis structure for HCN and assign the non-zero formal charges to each atom. Draw the Lewis structures with the formal charges minimized.
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12/14/19

Draw a Lewis structure for HNC and assign the non-zero formal charges to each atom. Draw the Lewis structures with the formal charges minimized.
Draw all bonds and add all lone pair electrons. Also, add all non-zero formal charges to the appropriate atom(s).
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12/13/19

Four glasses of milk and 3 snack bars have a total of 83 carbohydrates​ , and 3 glasses of milk and 4 snack bars have a total of 85 carbs. Determine how many carbs are in one glass of milk

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12/10/19

How many milliliters of a 0.250 M NaOH solution will be required to completely react with 12.74 mL of 0.250 M H2SO4?
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12/10/19

Help me to set this equation up
Assume you have a 100g sample, you can change the % symbols to grams. what is the empirical formula of a compound with the following composition:44.33% oxygen 41.17% chromium14,50% manganese... more
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