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2 years ago

What is basic of matter that can’t be broken down

Chemistry

2 answers:

inn [45]2 years ago

6 0

elements

Explanation:

elements are composed entirely of the same type of atom. An atom is the simplest particle of matter that retains its properties.

solong [7]2 years ago

5 0

Answer:

Atoms

Explanation:

Adams can’t be broken down there the littlest piece of matter there is and they make up everything.

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Answer:

m/s2

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m/s2

Explanation:

if F=ma, then a = F/m. The unit to measure acceleration is typically m/s2.

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3 years ago

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Answer:

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Explanation:

4/13 =0.307

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2 years ago

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. An aqueous solution ‘A’ turns phenolphthalein solution pink. On addition of an aqueous solution ‘B’ to ‘A’, the pink colour di

lara31 [8.8K]

Answer:

(iii) A has pH greater than 7 and B has pH less than 7

Explanation:

Phenolphthalein is a common indicator in acid base titrations. It turns pink in basic conditions and turns colorless in acidic conditions. Thus on addition of solution A it becomes pink so A should be basic having pH more than 7. On addition of B , it turn out to be colorless means that B is an acidic solution having pH less than 7.

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3 years ago

What is the pressure inside a 2.0 L bottle filled with 0.25 mol of carbon dioxide gas at 25 °C?

motikmotik

Answer:

3.1atm

Explanation:

Given parameters:

Volume of gas = 2L

Number of moles = 0.25mol

Temperature = 25°C = 25 + 273 = 298K

Unknown:

Pressure of the gas = ?

Solution:

To solve this problem, we use the ideal gas equation.

This is given as;

PV = nRT

P is the pressure

V is the volume

n is the number of moles

R is the gas constant = 0.082atmdm³mol⁻¹K⁻¹

T is the temperature

P = $\frac{nRT}{V}$

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P = $\frac{0.25 x 0.082 x 298}{2}$ = 3.1atm

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3 years ago

Change for a liquid state to a solid state is known as what phase change?

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Answer:

B. To change from a liquid state to a solid state is called Freezing

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2 years ago

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