Calcium reacts with water and burns with a yellow and red flame. It is a silvery white color and its classifiion is metallic. Calcium''s group name is the alkaline metal. Calcium is also used in vacuum tubes as a getter, a material that coines with and
Vacuum Deposition Techniques and Tables
Calcium Ca 839 S 1.54 272 357 459 P W W W Al 2 O 3, Q - Corrodes in air. Calcium Fluoride CaF 2 1423 Metal reacts quickly in air.n = 4.22 Sodium Bromide NaBr 747 3.20 - - ~400 - - - - Q RF Preheat gently to outgas. n = 1.641 Sodium Chloride NaCl
The Effect of Citric Acid on Metals | Hunker
Rust removal is one use of citric acid. Since citric acid is a weaker organic acid, it does not corrode iron rapidly. Over-the-counter solutions of citric acid are generally offered at low concentrations, so they are more safe. Dipping a piece of rusty iron into the citric
Alkali Metal Reactivity | Chemdemos
The reaction of alkali metals with water is represented by the following equation: 2 M(s or l) + 2 H 2 O (l) --> 2 M(OH) 2 (aq) + H 2 (g) Where M is the alkali metal.The heat given off by this reaction immediately melts the sodium and potassium and is frequently
Science Innovation Centre · 011 · Sodium - Penrhos College
It’s a soft metal, reactive and with a low melting point, with a relative density of 0,97 at 20 C (68 F). From the commercial point of view, sodium is the most important of all the alkaline metals. Sodium reacts quickly with water, and also with snow and ice, to produce sodium hydroxide and hydrogen.
Phosphate Blood Level - an overview | ScienceDirect Topics
CHRISTOPHER S. KOVACS, in Pediatric Bone, 2003Phosphate Serum phosphate levels are higher than maternal levels in humans [22, 23, 45, 46], rats [18, 47, 48], mice (unpublished data), sheep , and pigs [49, 50].As with the serum calcium, the serum phosphorus declines sharply in the first few hours after birth, at least in rats .].
2/5/2009· Metal and metal reactivity / Section 2 / Sect2pp.doc / S. W. Tse / P.3 89 Q.37 Which of the following process could be used to slow down corrosion of an iron nail? (1) painting the nail (2) coating a layer of zinc on the nail (3) wrapping a strip of copper around
The Effects of Acid on Different Kinds of Metal | Sciencing
Acids can corrode many different kinds of metals or wear them away through chemical processes. Not all metals react with acids in the same way, however, and some metals are more vulnerable to corrosion than others. Some metals react violently with acids
Calcium | Ca - PubChem
Calcium plays a vital role in the anatomy, physiology and biochemistry of organisms and of the cell, particularly in signal transduction pathways. The skeleton acts as a major mineral storage site for the element and releases Ca2+ ions into the bloodstream under controlled conditions.
Lithium (Li) - Chemical properties, Health and …
Lithium Lithium is the first of the alkalis in the periodic table. In nature it’s found like a mixture of the isotopes Li 6 and Li 7.It’s the lightest solid metal, it’s soft, silvery-white, with a low melting point and reactive. Many of its physical and chemical properties are more
Iron - Simple English Wikipedia, the free encyclopedia
Iron is a grey, silvery metal. It is magnetic, though different allotropes of iron have different magnetic qualities. Iron is easily found, mined and smelted, which is why it is so useful. Pure iron is soft and very malleable. Chemical properties Iron is reactive. It reacts .
Chemistry/Additional Science - Edexcel
13/6/2013· a soft metal that reacts vigorously with water a grey solid that forms a purple vapour when heated a yellow solid that does not Calcium nitrate solution reacts with sodium carbonate solution. The products are calcium carbonate and another salt. Write the (2) ..
KS3 Science-Chemistry Quiz "Metals, compounds, …
Magnesium rapidly dissolves in dilute sulphuric acid to give a clear colourless solution. Calcium only reacts slowly with dilute sulphuric acid to give a cloudy solution. Magnesium oxide and magnesium carbonate are similar white powders which are slightly soluble in
Bones and Calcium | Science Project
One way to find out is to use another chemical that reacts with the calcium in bone to test if other hard body parts from other animals are also made out of calcium. You can use common vinegar to react with the calcium found in bones.
Potassium - EniG. Periodic Table of the Elements
It is a soft, waxy, silver-white metal. Fresh surfaces have a silvery sheen. Potassium quickly forms dull oxide coating on exposure to air. It reacts strongly with water and gives off a flammable gas. It also reacts violently with oxidants. Potasium occurs only in
KS3 Science-Chemistry Quiz on "PATTERNS of …
[9f-9] Some metals react with cold water and fizzing is observed. Other less reactive metals react when heated in steam. Complete the word equation: metal + cold water ==> ?its an unreactive metal and isn''t readily attacked by acidic food juices ? it alloys with
Human hair chips away at a razor''s edge, engineers say | …
2 · A shaving razor that doesn''t blunt could be on the horizon after scientists discover human hair can ''chip'' metal blades, despite being 50 times softer than steel. In shaving experiments, engineers
Read, learn and explore the fasinating metal; lead. - …
Physical Properties of Lead: heavy soft grey solid both ductile (capable of being drawn into wires) and malleable (capable of being hammered in thin sheets) has a shiny luster when first cut, but later rusts and become dull easy to "work" such as bending, shaping an
The Chemistry of Limescale – Compound Interest
The calcium and magnesium ions in the water can also react with compounds found in soaps to produce the soap scum that plagues bathrooms. This is due to the reaction of these ions with compounds such as stearates, producing insoluble stearate salts.