Chemistry Glossary: Search results for 'kristalna tvar' (Page 2)

Results 11–20 of 330 for kristalna tvar

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miscible matter → mješljiva tvar

Miscible matter is capable of being mixed in any ratio with another matter without separation of two phases.

mutagenic substance → mutagena tvar

Mutagenic substances are substances that cause mutation, a change in inheritable properties of an organism.

neutral substance → neutralna tvar

Neutral substance is a substance that shows no acid or base properties, has an equal number of hydrogen and hydroxyl ions and does not change the colour of litmus-paper.

optically active matter → optički aktivna tvar

Optically active matter, by polarized light passing through it, turns the flat of polarized light leftwards or rightwards.

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solute → otopljena tvar

Solute is a substance that has been dissolved or could be dissolved in another substance (solvent).

surfactant → površinski aktivna tvar

Surfactants are substances which diminish the surface tension of liquids.

crystal system → kristalni sustav

Crystal system is a method of classifying crystalline substances on the basis of their unit cell. There are seven unique crystal systems. The simplest and most symmetric, the cubic (or isometric) system, has the symmetry of a cube. The other six systems, in order of decreasing symmetry, are hexagonal, tetragonal, rhombohedral (also known as trigonal), orthorhombic, monoclinic and triclinic.

Crystal system	Unit-cell	Conditions on unit-cell edges and angles
cubic		a=b=c α=β=γ=90°
hexagonal		a≠c α=γ=90° β=120°
tetragonal		a=b≠c α=β=γ=90°
rhombohedral		a=b=c α=β=γ≠90°
orthorhombic		a≠b≠c α=β=γ=90°
monoclinic		a≠b≠c α=γ=90°≠β
triclinic		a≠b≠c α≠β≠γ≠90°

abundance of substances → rasprostranjenost tvari

Abundance of substances is the ratio of the total mass of a specified element in the Earth’s crust to the total mass of the Earth’s crust. It is often expressed as a percentage.

carcinogen → kancerogene tvari

Carcinogen is any substance that can cause or contribute to the production of cancer.

cubic crystal system → kubični kristalni sustav

Cubic crystal system is also known as the isometric system. The Isometric crystal system characterizes itself by its three equivalent crystallographic axes perpendicular to each other.

a = b = c

α = β = γ = 90°