How is it helpful to know the states gas , solid, liquid, aqueous of matter in a chemical equation ?

1 answer:

8 0

It is helpful cause it can help you with the states of gas cause first it is a solid cause frozen witch ice so when you see ice you can now it is a state of gas also when the ice turns into water/liquid it can help you now that it is a state of gas

You might be interested in

A solution is made by dissolving 4.87 g of potassium nitrate in water to a final volume of 86.4 mL solution. What is the weight/

lara31 [8.8K]

Answer:

A solution is made by dissolving 4.87 g of potassium nitrate in water to a final volume of 86.4 mL solution. The weight/weight % or percent by mass of the solute is :

2.67%

Explanation:

Note : Look at the density of potassium nitrate in water if given in the question.

You are calculating weight /Volume not weight/weight % or percent by mass of the solute

Here the weight/weight % or percent by mass of the solute is asked : So first convert the VOLUME OF SOLUTION into MASS

Density of potassium nitrate in water KNO3 = 2.11 g/mL

$density=\frac{mass}{volume}$

Density = 2.11 g/mL

Volume of solution = 86.4 mL

$2.11=\frac{mass}{86.4}$

$mass = 2.11\times 86.4$

$mass=182.3grams$

Mass of Solute = 4.87 g

Mass of Solution = 183.2 g

w/w% of the solute =

$= \frac{mass\ of\ solute}{mass\ of\ solution}\times 100$

$=\frac{4.87}{183.2}\times 100$

w/w%=2.67%

8 0

4 years ago

A welding torch produces a flame by burning acetylene fuel in the presence of oxygen the energy released from the acetylene fuel

Volgvan

Answer : Chemical energy to thermal energy

Explanation : When the welding torch uses the acetylene fuel for producing flame it is using the chemical acetylene to generate energy in form of light, after the flame is produced the fuel is used for melting a metal which is utilizing the thermal energy. So the ultimate final product is generated from chemical to thermal and so the energy transformation is from chemical energy to thermal energy.

8 0

3 years ago

Read 2 more answers

The nucleus of the atom is held together by the attraction of the positively charged protons and the negatively charged electron

7nadin3 [17]

False.........................

8 0

3 years ago

(PLEASE HELP ASAP!!!!!!)

svetlana [45]

Answer:

A. How well a current will flow in a material and it's measured in volts.