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zhuklara [117]
3 years ago
5

There is a boy i like. i don't think he like me what do i do

Chemistry
1 answer:
SCORPION-xisa [38]3 years ago
7 0

Answer:

tell em

Explanation:

You might be interested in
In this system, potential and kinetic energy are ________________ proportional.
brilliants [131]

Answer:

This question is incomplete

Explanation:

There are two major forms of energy; these are potential and kinetic energy. Kinetic energy is the energy present in moving options. Examples include mechanical and electrical energy.

The formula for kinetic energy is 1/2mv² where "m" is mass and "v" is velocity.

While potential energy is the energy present in stationary objects that can be put to use in future. Example includes a ball in its resting state. The formula for potential energy is "mgh" where "m" is mass, "g" is acceleration due to gravity and "h" is height

Considering the law of conservation of energy which states that energy can neither be created nor destroyed but can be transformed from one form to another. Looking at the example provided earlier for potential energy, a ball in its resting position (having a potential energy) when kicked will have a kinetic energy (which can be calculated with the formula provided earlier), hence

Total energy = potential energy (P.E) + kinetic energy (K.E)

This formula and the explanation above can be used to answer the completed question.

NOTE: There is no standard relationship between P.E and K.E. They could be directly or indirectly proportional depending on the circumstance.

5 0
3 years ago
Which statement most completely defines a wave? *
Svetllana [295]

Answer:

A wave transfers energy through a medium or empty space without transporting matter.

Explanation:

  • A wave is a transmission of a disturbance from one point known as the source to another.
  • Waves may transfer energy through a material medium or a vacuum without transporting matter.
  • Waves that transfer energy from one point to another through a material medium are known as mechanical waves.
  • Electromagnetic waves, on the other hand, are those that do not require a material medium for transmission, the transfer of energy is through a vacuum.
  • Waves can also be either transverse or longitudinal waves based on the vibration of particles relative to the direction of wave motion.
4 0
3 years ago
Consider the following chemical reaction: 2KCl + 3O2 --> 2KClO3. If you are given 100.0 moles of KCl and 100.0 moles of O2...
g100num [7]

Answer:

O₂; KCl; 33.3  

Explanation:

We are given the moles of two reactants, so this is a limiting reactant problem.

We know that we will need moles, so, lets assemble all the data in one place.

            2KCl  +  3O₂ ⟶ 2KClO₃

n/mol:  100.0   100.0

1. Identify the limiting reactant

(a) Calculate the moles of KClO₃ that can be formed from each reactant

(i)From KCl

\text{Moles of KClO}_{3} = \text{100.0 mol KCl} \times \dfrac{\text{2 mol KClO}_{3}}{\text{2 mol KCl}} = \text{100.0 mol KClO}_{3}

(ii) From O₂

\text{Moles of KClO}_{3} = \text{100.0 mol O}_{2} \times \dfrac{\text{2 mol KClO}_{3}}{\text{3 mol O}_{2}} = \text{66.67 mol KClO}_{3}

O₂ is the limiting reactant, because it forms fewer moles of the KClO₃.

KClO₃ is the excess reactant.

2. Moles of KCl left over

(a) Moles of KCl used

\text{Moles used} = \text{100.0 mol O}_{2} \times \dfrac{\text{2 mol KCl}}{\text{3 mol O}_{2}} = \text{66.67 mol KCl}

(b) Moles of KCl left over

n = 100.0 mol - 66.67 mol = 33.3 mol

3 0
3 years ago
PLEASE HELP ME THIS IS REALLY IMPORTANT!!!!!!!!!!!!!!!!!!!!!
Jet001 [13]

Answer:

That is called the synapse

Explanation:

Hope this helps

3 0
3 years ago
How much heat energy is required to raise the temperature of 20 kilograms of water from 0°C to 35°C?
alexgriva [62]
The heat energy needed is 2928800J. Mass is given as 20 (kg)
7 0
3 years ago
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