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Is the volume of gold 20g greater than the volume of lead 10g?
We need to calculate the volume of a metal from the density to be sure. Density of pure gold = 19.3  g·cm-3Density of pure lead = 11.34  g·cm-3The volume of 20 g of gold = mass/density = 20 [g] / 19.3  g·cm-3 = 1.036 cm3 The volume of 10 g of lead = mass/density = 10 [g] / 11.34  g·cm-3 = 0.882 cm3 Hence, the volume of 20 g of gold is slightly greater than that of 10 g of lead. =========================
What is the scientific definition for the word element?
!!A pure substance that cannot be separated or broken down into simpler substances by ordinary chemical means!!
What substances is the usual reference point for the density of other substances?
The density of a substance is its mass per unit of volume. Density will be in units of mass (i.e. grams, kilograms, milligrams, etc.) over volume (cubic meter, cubic foot, liters, milliliters, etc.) For example, the density of water at 20 degrees Celsius is: kg 998 ----- m3
How much are regular brass knuckles worth?
They are usually just around $10 to $20
How many story building is 60 meters?
The number of stories in a building can vary depending on the height of each story. Typically, each story is around 3 meters high, but this can vary. Therefore, a 60-meter building could have around 20 stories if each story is 3 meters high. However, if the stories are taller or shorter, the number of stories could be different.
Is calcium a pure substance?
Yes. Calcium is an element, and it has the atomic number 20 and Ca is its chemical symbol. It is a metal, and one of the alkali earth metals which are the elements in Group 2 of the periodic table. It is reactive, and as such is not found free in nature, but always appears in compounds with other elements. Wikipedia has additional information, and a link is provided.
What percentage of the air around is pure oxygen?
Air contains about 19-20% oxygen
What is the answer to the March 20 2008 Wheel of Fortune bonus or final puzzle?
PURE OXYGEN pure oxygen mar 20 2008 it was pure oxygen
Are homogeneous mixtures always pure substances?
well according to the theory of the father of chemistry which is Jon mcdale says that if u multiply 20 by 2 then - 5 calculate the percentage to the nearest tenth multiply by 100 then it will give u the answer which is homogeneous substances are always pure so yes they are :D ignore wat i said now lol
Why elements and compounds are called pure substances?
Matter that has exactly the same composition is classified as a pure substances or simply a substance. Every sample of a given substances has the same properties because a substances has a fixed uniform composition. Substances can be classified into tow categories elements and compounds
Which has a higher freezing point a 20 percent salt solution or pure water?
Pure water has a higher freezing point than 20% salt water.
Are all substances solid at 20 degrees celsius?
No, not all substances are solid at 20 degrees Celsius. The state of a substance at 20 degrees Celsius depends on its melting point and boiling point. Some substances, like water, are liquid at this temperature while others may be gases or solids.
What is chloride like at 20 degrees?
pure sodium chloride is white
What percentage is gold out of 20 karat gold?
20 Karat gold is .833 fine. Or 833 parts per 1000
How much is 20 grams of pure gold?
The value of 20 grams of pure gold would depend on the current market price of gold per gram. You can multiply the weight (20 grams) by the current market price of gold per gram to calculate the value.
What are the release dates for Cars-TV - 2009 Pure Vision Martini Mustang 10-20?
Cars-TV - 2009 Pure Vision Martini Mustang 10-20 was released on: USA: 5 May 2013
When you add 20.0 ml to water how do you get the pH of 7.0?
Adding 20 mL fresh pure water to fresh pure water: the pH remain unchanged.
