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3 years ago

What is science and physics

Chemistry

2 answers:

Harman [31]3 years ago

6 0

Answer:

Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence.

physics is the studyphysical properties and phenomena of something

Ray Of Light [21]3 years ago

4 0

Answer:

THIS IS YOUR ANSWER :

Science is a study of nature human beings plants animals chemicals and machines

and pHySiCs is a part of science

✍️HOPE IT HELPS YOU ✍️

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Which of the following is made up only of one type of atom?

erastova [34]

Answer:

Table salt i might be wrong

3 0

3 years ago

The molarity of an aqueous sodium phosphate solution is 0.650 M. What is the molality of sodium ions present in this solution? T

netineya [11]

Answer:

molality of sodium ions is 1.473 m

Explanation:

Molarity is moles of solute per litre of solution

Molality is moles of solute per kg of solvent.

The volume of solution = 1 L

The mass of solution = volume X density = 1000mL X 1.43 = 1430 grams

The mass of solute = moles X molar mass of sodium phosphate = 0.65X164

mass of solute = 106.6 grams

the mass of solvent = 1430 - 106.6 = 1323.4 grams = 1.3234 Kg

the molality = $\frac{moles of solute}{mass of solvent in kg}=\frac{0.65}{1.323}= 0.491m$

Thus molality of sodium phosphate is 0.491 m

Each sodium phosphate of molecule will give three sodium ions.

Thus molality of sodium ions = 3 X 0.491 = 1.473 m

7 0

3 years ago

A liquid is placed in an evacuated, sealed flask. When will this closed system reach dynamic equilibrium?

Colt1911 [192]

If we ignore temperature equilibrium (since no data given), then dynamic equilibrium when the rate of evaporation equals the rate of condensation over a finite period of time and under constant temperature.

This is because at *dynamic* equilibrium, evaporation and condensation are both taking place continuously. If the rates are equal, then the mass of vapour and mass of liquid phases do not change, hence equilibrium. Dynamic because changes are still taking place.

7 0

4 years ago

Read 2 more answers

What is the kinetic energy of a bicycle with a mass of 11 kg traveling 8 m/s?

erastovalidia [21]

<h2>Question:-</h2>

What is the kinetic energy of a bicycle with a mass of 11 kg traveling 8 m/s ?

<h2>Answer:-</h2>

Mass (m) of a bicycle is = 11 kg

Speed (v) of a bicycle is = 8 m/s

Kinetic energy (K.E) of a bicycle is = ?

Since, we know,