All categories

3 years ago

Why do different chemicals emit different colors of light, and why is the color emitted specific to that chemical?

1 answer:

7 0

<span>Every chemical is made up of atoms and each atom has one or more electrons surrounded its nucleus. The electron emits light after changing from a high energy state o to a lower energy state which is known as transition. The color of this light is unique to each element because each atom of a particular element has a different transition energy.</span>

You might be interested in

This particle determines what element you have - the element's identity.

scoundrel [369]

Answer:

protons

These particles do not vary in quality from one element to another; rather, what gives an element its distinctive identification is the quantity of its protons, called its atomic number. Protons and neutrons contribute nearly all of an atom's mass; the number of protons and neutrons is an element's mass number

Explanation:

4 0

3 years ago

The psychoactive drug sold as a methamphetamine - "speed" (c10h15n) - undergoes a series of reactions in the body; the net resul

Phoenix [80]

Answer: The coefficient of nitrogen in the given equation is 2.

Explanation: The reaction for the oxidation of methamphentamine with oxygen gas in the body is given by:

$4C_{10}H_{15}N(s)+55O_2(g)\rightarrow 40CO_2(g)+30H_2O(l)+2N_2(g)$

By Stoichiometry,

4 moles of methamphentamine reacts with 55 moles of oxygen gas to produce 40 moles of carbon dioxide gas, 30 moles of water and 2 moles of nitrogen gas.

Coefficient of $C_{10}H_{15}N=4$

Coefficient of $O_2=55$

Coefficient of $CO_2=40$

Coefficient of $H_2O=30$

Coefficient of $N_2=2$

Hence, the coefficient of nitrogen in the given equation is 2.

8 0

3 years ago

Why a common measuring system is important

Gekata [30.6K]

So scientist around the world can share there info without having to convert and doing extra work.

6 0

3 years ago

Someone please help me:

Stels [109]

Answer: The number to the left of AC should be 6.

Explanation: The balanced chemical reaction is one in which the number of atoms of each element on the reactant side must be equal to the number of atoms on product side.

The given equation $A_2B + DC_3 \rightarrow AC + D_2B_3$ is unbalanced as the atoms on the reactant side are not same as number of atoms on product side. This equation is called as skeletal equation.

The balanced chemical equation is :

$3A_2B + 2DC_3 \rightarrow 6AC + D_2B_3$

Thus the number to the left of AC is 6.

6 0

3 years ago

Read 2 more answers

What is the kinetic energy of the ball precisely 4 seconds after it starts falling?

allochka39001 [22]

it depends how heavy and how far it travels

3 0

3 years ago