The metric system is used all around the world because it goes off a ten number base and is easy to calculate.
qualitative data is in words
quantitative data is in numbers
A pure chemical substance
Explanation:
A pure substance is any substance made up of only one kind of matter and has definite properties.
Matter is anything that has weight and occupies space
On a broad basis, matter can be categorized as pure or distinct substances and impure substances or mixtures.
Pure substances have the following properties;
- All parts of a pure substance remains the same throughout i.e homogeneous.
- Their composition is definite
- They cannot easily be broken or separated down into simpler substances by physical means.
They have a unique set of chemical properties.
Pure substances are elements and compounds.
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Heterogeneous mixtures brainly.com/question/1446244
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<span>The test dummy will continue forward until it makes contact with another object.</span>
Hello!
Atoms are made of 3 types of particles: Electrons, protons, and neutrons. The protons and neutron (referred to collectively as nucleons) make up the nucleus (center) of the atom, while the electrons surround the nucleus.
Answer:
Protons, neutrons, and electrons.
Answer:- There are particles in the container present at 23 degree C and 101.3 pKa.
Solution:- The given volume of the container is 4.0 L at 23 degree C and 101.3 kPa pressure.
We would calculate the moles using ideal gas law equation(PV = nRT) and then the moles are converted to particles on multiply the moles by Avogadro number.
Let's convert degree C to kelvin and pKa to atm.
T = 23 + 273 = 296 K
P = 101.3 pKa = 1 atm
R =
V = 4.0 L
n = ?
Let's plug in the values in the equation:
1(4.0) = n(0.0821)(296)
4.0 = n(24.3)
n = 0.165 mol
Let's multiply the moles by Avogadro number to get the number of particles:
= particles
So, from above calculations there would be particles in the container.