And a combination of liquid oxygen and liquid nitrogen can be used in aqualung devices. Liquefaction of gases is also important in the field of research known as cryogenics. Liquid helium is widely used for the study of behavior of matter at temperatures close to absolute zero , 0K ( — 459 ° F [ — 273 ° C]).

The Importance of Nitrogen Because a fruit tree is a sessile organism (it cannot move), it depends upon its owner to properly feed it. Nitrogen is an essential nutrient for the production of amino acids, proteins, nucleic acids, etc., and stone fruit trees require an adequate annual supply for proper growth and productivity.

Students will explore the Nitrogen Cycle by modeling the movement of a nitrogen atom as it passes through the cycle. Students will stop in the different reservoirs along the way, answering questions about the processes that brought them to the different reservoirs. This lesson was based on an activity from UCAR Center for Science Education .

Two biologically important compounds that contain both oxygen and nitrogen are: (i) Amino acids

Iron Programming. When oxygen bonds we have found it to either have a formal charge of 0 (2 bonds and 2 lone pairs), +1 (3 bonds and 1 lone pair), and -1 (1 bond and 3 lone pairs). There are a couple other possibilities which you may run into when studying free radical reactions and such.

Algal cells are natural fertilizer and nowadays it is used worldwide, without any side effect, Algal cells have specific cells called heterocyst and are the site of nitrogen fixation. Algae are able to convert unavailable dinitrogen into bioavailable ammonia.

nitrogen + hydrogen ⇌ ammonia N2 + 3H2 ⇌ 2NH3 The reaction mixture contains some ammonia, plus a lot of unreacted nitrogen and hydrogen. The mixture is cooled and compressed, causing.

Nitrogen dioxide is an irritant of the mucous membrane linked with another air pollutant that causes pulmonary diseases such as obstructive lung disease, asthma, chronic obstructive pulmonary disease and sometimes acute exacerbation of COPD and in fatal cases, deaths.

A gas is found to contain $2.34g$ of nitrogen and $5.34g$ of oxygen. Simplest formula of the compound is:A.${N_2}O$B.$NO$C.${N_2}{O_3}$D.$N{O_2}$. Ans: Hint: If we know the weight ratio of the two or more gases in a compound then we can calculate the.

Potato chips bags are not full of air but of nitrogen gas. This is done to prevent the chips from oxidizing, which is part that makes them go stale. Oxygen is very reactive and likes to combine with other molecules whenever it can, causing chemical changes to take place.

Magnesium ribbon is rubbed before burning because it has a coating of (a) basic magnesium carbonate (b) basic magnesium oxide (c) basic magnesium sulphide (d) basic magnesium chloride Answer 3. Which of the following statements about the given reaction are correct? 3Fe (s) + 4H 2 O (g) → Fe 3 O 4 (s) + 4 H 2 (g) (i) Iron metal is getting oxidised