Liquid nitrogen is produced by converting atmospheric nitrogen gas to liquid nitrogen at its boiling point of 77.36 K.  What is the boiling point of liquid nitrogen in oF?

Q: the few point temperature

A:

Q: If the temperature increases, does the motion of particles increase or decrease?

A: Interpretation - If the temperature increases, then motion of particles increase or decrease is to…

Q: Calculate the volume of the sample ar constont

A:

Q: What is the State of Water (solid, liquid, gas) at the following temperatures?

A: Any Substance has different physical states at different temperatures. Water has different physical…

Q: Write the balanced equation with the phases for the following reaction: Sodium nitrate crystals and…

A: Following balanced equation is given by:

Q: Which physical state is described as having particles closely packed and held rigidly in position?

A: There are three physical states present, namely, solid, liquid and gases. Each state has different…

Q: the pressure of the gas?

A:

Q: Which physical state has particles with the most movement?

A: Physical states: One of physical condition of states in which matter exists is called as states.…

Q: Describing the relationship between the melting time for an ice cube and amount of salt sprinkled on…

A: The freezing point depression is the one that results in lowering of freezing point of the pure…

Q: Calculate the amount of heat needed to and the correct number of significant d

A: Answer: 26.7 KJ

Q: How does a state describe the macroscopic view of the system?

A: How does a state describe the macroscopic view of the system has to be given,

Q: The melting point is the temperature where a solid becomes liquid. The melting poi of acetone is…

A: State of matter below its melting point is solid and above its melting point is liquid.

Q: What is the SI unit of volume? What is the other common unit which in notan SI unit of volume.

A: The SI unit of volume is m3

Q: How many phases does matter have?

A: A matter can have maximum five phases. Which are given below in step 2

Q: In self-contained breathing devices used by first responders, potassium superoxide KO2 reacts with…

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: temperature (in

A:

Q: What is the temperature of the air in the tire

A: At constant volume, the pressure of a gas is directly proportional to the temperature.

Q: . The curves do not need to be to sca differences between the three cases. aragraph that describes…

A:

Q: Liquids and gases take the following characteristic(s) of their containers. Which is/are it?…

A: Generally there are three types of substances solid, liquid and gas.

Q: How do I find the original water level in a beaker, when I’m given the mass of a metal (grams)…

A: Calculate the volume of the given metal by using the relationship between mass and density,

Q: Density of solid substance of any shape

A: Density of solid substance of any shape can be determined by only two parameters I) mass of the…

Q: an endothermic phase

A:

Q: There are ___________ degrees Fahrenheit between thefreezing and boiling points of water.

A: The number of degrees (in Fahrenheit) between freezing point of water and boiling point of water.

Q: When solid potassium chlorate is heated, it decomposes to form solid potassium chloride and oxygen…

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: ppen to the temperature?

A: Ideal gas equation,  PV = nRT  At constant volume,  Temperature is direactly proportion to pressure…

Q: An automobile of 3000 kg travels toward north with a constant velocity of 70 km/h . All forces…

A: Force is given by: F=m×a where m is the mass and a is the acceleration.

Q: A change in state from gas to liquid

A: Substance physical states  Solid state liquid state gaseous state  Based on nature of compound and…

Q: Which of the following is not a form of energy?

A: Capactity to do work is called energy various types of energies are   1. Thermal energy   2.…

Q: indicate if the temperature increase or decrease in the following matter changes: from liquid to…

A: 1. from liquid to gas 2. from liquid to solid 3. from gas to liquid 4. from solid to liquid

Q: classify whether it is greater than, less than, or equal to.

A:

Q: The changing of a liquid to a solid is called

A: ANS : FREEZING  LIQUID TO SOLID  FOR EXAMPLE WATER(liquid) INTO ICE (solid) FREEZING POINT OF WATER…

Q: That volume

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: At one atmosphere pressure, mercury solidifies at -38.0 oF. Express this temperature in degrees…

A: At one atmosphere temperature, mercury solidifies at -38.0 °F. We have to convert this temperature…

Q: a. The "grain" unit of mass is commonly used to define the amount of aspirin in a commercial tablet.…

A: Grain is the unit of weight. A tablet of aspirin consists of 5 grains. The mass of one grain of…

Q: Calculate the temperature of the gas.

A:

Q: Gases are compressible and have a density that is much higher than liquids and solids.

A: 8 Gases are low density than solid. In solid have more density than gas and liquid because the…

Q: Based on this. What mass of water was driven off by heating? (Grams)

A: There are two laws of chemical combination – Law of conservation of Mass which states that “Mass can…

Q: It has been dete of energy during

A: Given the amount of heat generated by our body during 1 hour of exercise = 5500 kJ / 1 hour The heat…

Q: Match the following vocabulary to its definition

A: Kinetic energy is the energy associated with the movement of objects. Although there are many forms…

Q: emalt temperature of 0°C equal to in Kelvin?

A: Temperature definition :    With the reference of standard value, measuring the warmth and coldness…

Q: the movement of solid, liquid and gas molecule of water when the temperature rise up and cool down?

A: Water has the three states of matter as Solid (Ice), Liquid (Water) and Gas (Water vapors).

Q: Part A When iron rusts, solid iron reacts with gaseous oxygen to form solid iron(lII) oxide. Enter a…

A: The balanced chemical reaction has to be given.

Q: At what temperature in oF at which liquid water has the highest density?

A: Density of water first increases and then decreases upon decreasing temperature. It has been…

Q: the normality

A:

Q: When iron rusts, solid iron reacts with gaseous oxygen to form solid iron (iii) oxide. Enter a…

A: Given : The reactants are 1) solid iron i.e Fe (s) and 2) gaseous oxygen i.e O2 (g) And the product…

Q: What is a unit of volume of solids

A: Volume of any substance is defined a the space that particular substance takes up,at any particular…

Q: The Magnitude of the unit is the same between ----- and ----- scales, They differ in the position of…

A: There are mainly 3 types of temperature scales commonly used. These are - The Celsius scale The…

Q: Using the picture of the graduated cylinder and its contents, arrange thefollowing in order of…

A: The density of a compound is the ratio of mass to its volume. The unit is gcm3

Q: The following picture represents..

A: Elements When substance is made of only one kind of atoms and cannot be broken into simpler type of…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.