Chemistry

All new and solved questions in Chemistry category

2 answers

When cool, dense air from over the water flows inland, it's called a ____. a. land breeze c. jet stream b. polar easterly d. sea breeze

When cool, dense air from over the water flows inland, it's called a ____. a. land breeze c. jet stream b. polar easterly d. sea breeze...
2 answers

What type of radiation is carbon emitting in the following equation? 14/6C - 0/-1 + 14/7N A. alpha particles B. beta particles C. gamma rays

What type of radiation is carbon emitting in the following equation? 14/6C - 0/-1 + 14/7N A. alpha particles B. beta particles C. gamma rays...
2 answers

How does the jet stream help move storms across North America?

How does the jet stream help move storms across North America?...
2 answers

When a kettle is placed on the stove and water begins to boil, the hotter water at the bottom begins to rise and the cooler water above it begins to sink. What type of heat transfer does this situation represent?

When a kettle is placed on the stove and water begins to boil, the hotter water at the bottom begins to rise and the cooler water above it begins to sink. What type of heat transfer does this situation represent?...
2 answers

Chromium is most commonly mined in the form of chromite, which has the chemical formula fecr2o4. calculate the percent by mass of each element in chromite, and give your answers to four significant digits.

Chromium is most commonly mined in the form of chromite, which has the chemical formula fecr2o4. calculate the percent by mass of each element in chromite, and give your answers to four significant digits....
2 answers

What happens when an electron moves to a higher energy level? the atom loses the electron. the atom becomes more stable. the electron gains energy?

What happens when an electron moves to a higher energy level? the atom loses the electron. the atom becomes more stable. the electron gains energy?...
2 answers

How will the following system react when an increase in pressure occurs? Note: all species are gases. N2O4 <--> 2NO2 Question 9 options: a. More N2O4 is produced. b. There is no way to predict how the increase in pressure will affect this system without more information. c.No change occurs. d.More NO2 is produced.

How will the following system react when an increase in pressure occurs? Note: all species are gases. N2O4 <--> 2NO2 Question 9 options: a. More N2O4 is produced. b. There is no way to predict how the increase in pressure will affect this system without more information. c.No change oc...
2 answers

In science, Jill is learning about solids such as brass, bronze, and steel. How should she classify these materials?

In science, Jill is learning about solids such as brass, bronze, and steel. How should she classify these materials?...
1 answer

Write the word and formula equations representing the chemical reaction that occurred between the. barium chloride solution , BaCl2(aq) , and the sodium sulfate solution Na2SO4(aq).

Write the word and formula equations representing the chemical reaction that occurred between the. barium chloride solution , BaCl2(aq) , and the sodium sulfate solution Na2SO4(aq)....
2 answers

The frequency of a given region of the electromagnetic spectrum is more than 3 x 1019 HZ. Note that the speed of light is 2.998 x 108 m/s. Which waves are found in this region? gamma rays visible light microwaves radio waves x–rays

The frequency of a given region of the electromagnetic spectrum is more than 3 x 1019 HZ. Note that the speed of light is 2.998 x 108 m/s. Which waves are found in this region? gamma rays visible light microwaves radio waves x–rays...
2 answers

A teacher makes the following statement. “Gasoline boils at a relatively low temperature (about 150°C). The kerosene is removed at around 200°C, followed by diesel oil at 300°C and fuel oil at around 370°C.” What topic is the teacher most likely talking about? distillation of a mixture filtration of a pure substance evaporation of a mixture sorting of a pure substance

A teacher makes the following statement. “Gasoline boils at a relatively low temperature (about 150°C). The kerosene is removed at around 200°C, followed by diesel oil at 300°C and fuel oil at around 370°C.” What topic is the teacher most likely talking about? distillation of a mixture filtr...
2 answers

How many liters of water are required to dissolve 1.00 g of barium chromate? express your answer in liters to three significant figures?

How many liters of water are required to dissolve 1.00 g of barium chromate? express your answer in liters to three significant figures?...
2 answers

At the freezing point, the particles in an object have no kinetic energy. true or false?

at the freezing point, the particles in an object have no kinetic energy. true or false?...
1 answer

Can someone complete the chemical reactions, or write which one do not occur, and provide tehir types?*c2h4+h2o*c3h8 + hcl*c2h2+br2*c4h10+br2*c3h6+br2

Can someone complete the chemical reactions, or write which one do not occur, and provide tehir types?*c2h4+h2o*c3h8 + hcl*c2h2+br2*c4h10+br2*c3h6+br2...
1 answer

Compare and contrast an electric generator and a battery??

compare and contrast an electric generator and a battery??...
1 answer

How do you balance __H2SO4 + __B(OH)3 --> __B2(SO4)3 + __H2O

how do you balance __H2SO4 + __B(OH)3 --> __B2(SO4)3 + __H2O...
2 answers

What is the Bond Type and Molecular polarity of PCl3?

What is the Bond Type and Molecular polarity of PCl3?...
1 answer

What three parts make up a single nucleotide 

what three parts make up a single nucleotide ...

-- 0.076025--