Some electric cars are hybrid which consume less gas than your average car.
They will use electricity to run instead of gas which helps the environment
Answer:
148.2 g of H20
Explanation:
Equation of reaction: 4NH3 + 5O2 ---> 4NO + 6H20
From the equation above, 4 moles of ammonia reacts with 5 moles of oxygen gas to produce 6 moles water.
Molar mass of NH3 = 17 g/mol;
Molar mass of O2= 32 g/mol;
Molar mass of H2O = 18 g/mol
First, we determine the limiting reactant:
4*17 g of NH3 reacts with 5*32 g of O2
Mass Ratio = 68 : 160
Therefore, NH3 is the limiting reactant.
68 g of NH3 reacts to produce 6* 18 g of H20 = 108 g of H2O
93.3 g of NH3 will react to produce (93.3 * 108)/68 g of H20 = 148.2 g of H2O
Therefore, the maximum amount of H2O produced = 148.2 g
Explanation:
Alkali metals are the metals which belong to group 1 of the periodic table. As these elements have one valence electron so they are highly reactive in nature.
Some characteristics of metals are as follows.
- Usually metals are hard in nature.
- They have shiny surface.
- Metals are malleable and ductile in nature.
- Metals are good conductors of heat and electricity.
When these metals react with water then it leads to the formation of metal hydrides.
For example,
Thus, we can conclude the following for alkali metals:
a. What is the group number? - Group 1.
Are these metals reactive? - Yes
b. Do these metals occur freely in nature? - No
c. How many electrons are in their outer shell? - 1 valence electron
d. What are the three characteristics of ALL metals?
- Usually metals are hard in nature.
- They have shiny surface.
- Metals are malleable and ductile in nature.
e. Are these metals soft or hard? - Both
f. Name the two most reactive elements in this group? - Lithium And Sodium
g. What happens when they are exposed to water? - They form hydrides.
John Dalton made some hypothesis about the structure of atom. He proposed that matter is composed of great number of indivisible particles called atoms they can neither be destroyed nor be created.
<h3>What is atomic theory?</h3>
There are different theories regarding the structure and electronic properties of an atom. Many scientists contributed to the modern theory of atomic structure in which John Dalton was first to mention the word atom.
According to Dalton' theory, matter is composed of indivisible particles called atoms. Atoms can neither be created nor be destroyed. All the atoms of the same element are identical in all aspects.
Atoms of different elements are different and the compounds are formed by the combination of atoms. Dalton's theory provided a sound basis for the laws of chemical combination and also several properties of gases and liquids known at that time.
However, he could not explain the reason for chemical combination of atoms and did not give any idea about the existence of isotopes and isobars.
Hence, the main aspects of Dalton's theory was the indivisibility of atoms and the chances of chemical combination.
To learn more about Dalton's theory, find the link below:
brainly.com/question/11855975
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I pretty sure the answer is true but here is also a site to help you. https://www.britannica.com/science/wave-water