3,202 Answered Questions for the topic Science

06/09/21

4. As concentration increases, what happens to the number of ions in the solution? URGENT CHEMISTRY QUESTION

please help me with this chemistry concept and question.

06/09/21

How does the concentration of ions in a strong base differ from a weak base? CHEMISTRY URGENT

please help me explain this chemistry concept

06/09/21

Which ions are most abundant in water? - Chemistry URGENT  

Please help me explain this chemistry question.

06/09/21

What is the density of NH3 at 335 K and 104 kPa?

06/09/21

What is the volume of 17.88 mol of argon gas at STP?

06/08/21

Stoichiometry.....

1 C₃H₈(g) + 5 O₂(g) → 3 CO₂(g) + 4 H₂O(g) Write out all the steps to solve the following problem. 14 moles of O₂ are used to react with propane gas. How many moles of Carbon Dioxide is produced?... more

06/08/21

Stoichiometry.........

 1 C₃H₈(g) + 5 O₂(g) → 3 CO₂(g) + 4 H₂O(g) When solving the following problem, what is your GIVEN? Problem: How many moles of Carbon Dioxide are formed when 7 moles of Propane Gas (C₃H₈) react with... more
Science Chemistry

06/08/21

Stoichiometry.......

1 C₅H₁₂(g) + 8 O₂(g) → 5 CO₂(g) + __ H₂O(g) when balancing the above equation, how many moles of water are produced when 1 mole of C₅H₁₂ reacts with excess Oxygen Gas? 
Science Chemistry

06/08/21

Stoichiometric Calculations

1 C₃H₈(g) + 5 O₂(g) → 3 CO₂(g) + 4 H₂O(g) based on this balanced equation, how many moles of water would be produced when 10 moles of oxygen gas (O₂) react with excess propane (C₃H₈)?
Science Calculus Physics

06/07/21

How much work is done in stretching this spring from a length of 2.5 m to a length of 3.2 m?

A spring with a natural length of 1.8 meters is held at a length of 2.4 meters by a force of 12 N. How much work is done in stretching this spring from a length of 2.5 m to a length of 3.2 m?
Science Calculus Physics

06/07/21

How much work is required to pump all of the water to a spout even with the top of the tank?

A water tank is shaped like a pyramid with its point down. The top base of the pyramid is a square with 8 meter sides. The bottom point of the pyramid is 10 meters below the center of the top base.... more

Advance Physics

How can you improve the accuracy of a specific heat capacity experiment?

06/04/21

atoms to grams of calcium

How many atoms of calcium are in 3456 grams of calcium? a) 5.19e25b) 2.30e-19c) 8.34e28d) 1.43e-22
Science Chemistry

06/04/21

Hi, someone please help me with this and how am i gonna know if it's acidic or basic?

Calculate thehydrogen ionconcentration of asolution with a pOHreading of 7.8

06/04/21

please if anyone can help

Select the missing reactant for the following combustion reaction2 _______________ + 15 O2 ---> 14 CO2 + 6 H2OGroup of answer choices

06/04/21

science problem

How many grams of excess reactant is left over when 60 grams of NaCl reacts with 55 grams of Pb(NO3)2?A) 40 g B) 60 g C) 50 g D) 30 g

06/04/21

Question this would be very useful

Which of the pH levels listed is the most acidic?Group of answer choicespH = 1pH = 4pH = 7pH = 14

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.