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Question #f7fe6

How does chemistry relate to our lives?

A circuit with a resistance of #3 Omega# has a fuse with a capacity of #2 A#. Can a voltage of #5 V# be applied to the circuit without blowing the fuse?

Question #f3a4d

Question #85744

Question #2c065

What is the pH of a 0.0235 M #HCl# solution?

Question #0899c

Can you solve this? The concentration of the #Zn^(2+)# ions in blood serum is 1.2 ppm. Express this amount in terms of millimole/L and milliequivalent/L.

What is the final temperature after 840 J is absorbed by 10.0 g of water at 25°C?

What is the density of methyl chloride gas, #CH_3Cl#, at STP?

Question #35e62

Question #c3d97

Question #1bdb3

In what order do electrons fill orbitals within a sublevel?

A ball with a mass of #9 kg# moving at #14 m/s# hits a still ball with a mass of #18 kg#. If the first ball stops moving, how fast is the second ball moving?

In the reaction represented by the equation #2Al_2O_3 > 4Al + 3O_2#, what is the mole ratio of aluminum to oxygen?

How do cohesion and adhesion explain capillary action?

How would you calculate the formal charge of NH3?

How can you use the VSEPR theory?

How many total atoms are in .660 g of #P_2O_5#?

A 0.310 mol sample of xenon gas has a volume of 22.0 L at a pressure of 0.470 atm. What is the temperature of the gas in degrees Celsius?

How heavy will #6.14 * 10^25# atoms of gold be?

How much power is produced if a voltage of #15 V# is applied to a circuit with a resistance of #5 Omega#?

A balanced lever has two weights on it, the first with mass #5 kg # and the second with mass #8 kg#. If the first weight is # 12 m# from the fulcrum, how far is the second weight from the fulcrum?

John took 45 minutes to bicycle to his grandmother's house, a total of four kilometers. What was his velocity in km/hr?

How would you write a balanced chemical equation for CH4 reacting with oxygen gas to produce water and carbon dioxide?

Phosphoric acid is neutralized by a solution of sodium hydroxide. What is the name of the salt formed from the neutralization?

Hello. Can someone help me with drawing hydrogen bonds among different molecules, with an example below? I understood how water molecules are linked to each other by hydrogen bonds. But I have a problem drawing these bonds in other biomolecules. Thanks!

What is a general formula for an ester?

A circuit with a resistance of #6 Omega# has a fuse melts at #5 A#. Can a voltage of #18 V# be applied to the circuit without blowing the fuse?

Question #3f1d8

What is the functional group contained in the compound #CH_3CH_2NH_2#?

Question #4012f

How many moles of NaCl are in 0.350 L of a 1.5M solution?

A circuit with a resistance of #6 Omega# has a fuse that melts at #8 A#. Can a voltage of #49 V# be applied to the circuit without blowing the fuse?

Question #269de

How do you solve empirical formula calculations?

What is a metallic compound?

Question #8fe41

What is the difference between a colloid and a solution?

How would you identify a limiting reagent in a chemical reaction?

If a current of #5 A# passing through a circuit generates #435 W# of power, what is the resistance of the circuit?

What is the balanced equation for the complete combustion of pentane (C5H12)?

Which of the following doesn't give a precipitate when dil.HCl is added?
1. NaAlO2
2. Na2ZnO2
3. BiOCl
4. AgNO3
5. NaOCl

What is the relationship between chlorophyll and the color of plants?

Question #7a915

What is the relationship between energy and the speed of light?

Question #21241

Summarize HSAB theory?

A current of 1.6 A is measured through a lightbulb when it is connected across a 110 V source. What power is dissipated by the bulb?

Why do most of the plants grow on land and not in water? What are the reasons which makes land more favourable for growth of a plant as compared to water?

What is the electric current produced when a voltage of #9 V# is applied to a circuit with a resistance of #69 Omega#?

Question #3c6bf

What are the number of sublevels and electrons for the first four principal quantum numbers?

What are the similarities between the Rutherford and Bohr atomic models of the atom? How did Bohr improve on the Rutherford model?

Question #2f296

How fast will an object with a mass of #3 kg# accelerate if a force of #24 N# is constantly applied to it?

How are animal behaviors measured and interpreted?

What is the lattice energy?

Question #eebf3

Ryan hit a baseball with an acceleration of 40 m/#s^2#. The mass of the baseball is 0.5 kg. What is the force?

What are some examples of aggregate fruits?

A car is traveling at a constant speed of 12 m/s. When the driver accelerates, the car reaches a speed of 26 m/s in 6 s. What is the average acceleration of the car?

What nuclear reaction is the basis of an atomic bomb?

I have a great confusion in significant and rounding off data, 834.8501 I have to be asked to round off to four significant, I have done it as 834.8, but teacher said it would be 834.9, she says rounding of 501 is greater than 500 so one is add into 8. ?

Are acids or bases more dangerous? Why?

Question #c75aa

What is the percent composition of #K_3PO_4#?

Question #2b111

How much work does it take to raise a #7 kg # weight #9 m #?

What is a amino acid?

What is rotational dynamics?

What is the molecular formula of a compound if its empirical formula is #CFBrO# and its molar mass is 381.01 g/mol?

In a series circuit, what effect will adding more resistors to the circuit have?

Question #6e96b

What is the Doppler shift, and why is it important to astronomers?

Question #9bc50

Question #af34e

Hello. Can someone tell me why is DNA the genetic material in most of the organisms & not RNA? I need answers with reasoning & explanation. Thanks!

How can I demonstrate Boyle's law?

Question #295a0

Calculate the volume of hydrogen required for complete hydrogenation of 0.25 #dm^3# of ethyne at STP?

Question #5a7e3

Complete the EQUATION:
NaOH (aq) + Na2SO4 (s) + Al (s) > ?

What is the density of a material that has a mass of 5.6 g and when placed in a graduated cylinder changes the volume of water from 17.0 mL to 19.2 mL?

What is energy input and output on earth?

Can you help me? From a 0.5 M #Na_2CO_3# solution having a volume of 300 ml, prepare a 0.075 M #Na_2CO_3# solution with a volume of 150 ml.

How do you find #sp^2# carbons?

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