Chemistry » Page 46

Chemistry

Nayeli

What determines if an element is a solid or liquid at room temperature? this isn't a test question BTW.,

Answer Answers (1)

Chemistry

Guest

An aqueous 0.839 M acidic acid solution is prepared with a total volume of 0.500 L. The molecular weight of acidic acid is 60.05G/mole what mass of acetic acid in grams is needed for the solution

Answer Answers (1)

Chemistry

Kylan Mccoy

What is the phase change that occurs when a soild becomes a liquid

Answer Answers (1)

Chemistry

Gunnar Walls

Explain how a bond forms between sodium and chlorine in sodium chloride (NaCl).

Answer Answers (1)

Chemistry

Cedric Atkinson

A material has a density of 8.9 g/cm3 you have six cubic centimeters of the substance what is the materials mass in grams

Answer Answers (1)

Chemistry

Jason Lutz

Not enough air is pumped into an inflatable life raft to make completely filled out the atm pressure is 14.7psi what is the pressure inside the raft explain

Answer Answers (1)

Chemistry

Dominique Ingram

Water flows at the rate of 0.5 kg/s in a 2.5-cm-diameter tube having a length of 4 m. A constant heat flux is imposed at the tube wall so that the tube wall temperature is always 50°C higher than the water temperature. Calculate the heat transfer rate and estimate the temperature rise in the water as it exits the pipe if the water enters at 5°C. The water is pressurized so that boiling cannot occur. (Assume h 3000 W/m2 oC). Note the interplay between heat transfer and thermo!

Answer Answers (1)

Chemistry

Jet

Which of the following equations represents a double-displacement reaction?

A. FeS (s) + 2HCl (aq) ® H2S (g) + FeCl2 (aq)

B. 2Sb (s) + 3I2 (g) ® 2SbI3 (s)

C. Zn (s) + H2SO4 (aq) ® ZnSO4 (aq) + H2 (g)

D. 2HgO (s) ® 2Hg (l) + O2 (g)

Answer Answers (1)

Chemistry

Bobby Stevenson

Consider the Williamson ether synthesis between 2-naphthol and 1-bromobutane in strong base. A reaction was performed in which 0.51 g of 2-naphthol was reacted with a slight excess of 1-bromobutane to make 0.29 g of 2-butoxynaphthalene. Calculate the theoretical yield and percent yield for this reaction. Figure:Chemical bonds

Answer Answers (1)

Chemistry

Huynh

How many molecules of n2 are in a 300.0 ml container at 780 mmhg and 135Â°c?

Answer Answers (1)

Chemistry

Alisha Deleon

Why is gas able to flow

Answer Answers (1)

Chemistry

Amiah Waller

Identify the atom whose nucleus is composed of 56 protons and 82 neutrons

Answer Answers (1)

Chemistry

Guest

What part of an atom is involved in a chemical reaction?

proton

neutron

nucleus

electron

Answer Answers (2)

Chemistry

Lamont Kim

What kind of investigative never includes a hypothesis

Answer Answers (1)

Chemistry

Carelyn

How many moles of H2 would be required to produce 5.0 moles of water

Answer Answers (1)