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In World War 2, people thought there was going to be a dairy shortage (which is a main source of calcium), so they started to put calcium in the white flour (which was, and still is, something consumed by many people) so that people always got enough calcium in their diet. It has been carried on ever since.
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What volume of hydrogen gas is produced at STP as sulfuric acid reacts with 120 g of solid metallic calcium in a single-replacement reaction?
Using the molar mass of calcium, convert 120 g to moles. Write the balanced chemical equation for the reaction, determining the mole ratio of hydrogen gas to calcium. Finally, apply Avogadro's Law to convert moles of hydrogen gas to volume at STP (22.4 L/mol).
What is wrong with this word equation calcium chloride plus magnesium sulfate barium chloride plus magnesium sulfate?
This word equation is incorrect because it does not follow the law of conservation of mass. The equation should be: calcium chloride plus magnesium sulfate yields barium sulfate plus magnesium chloride.
How is Hess's law used to measure enthalpy of desired reaction?
Hess's law is used to measure the enthalpy of a desired reaction by comparing it to a series of known reactions with known enthalpy values. By manipulating these known reactions and applying Hess's law, the overall enthalpy change for the desired reaction can be calculated. This allows for the determination of the enthalpy of the desired reaction indirectly, using information from related reactions.
How is Hess's law used to measure enthalpy of a desired reaction?
... Intermediate equations with known enthalpies are added together.
Is it legal to use white phosphorus as a weapon?
White phosphorus can be used legally for certain purposes such as creating smoke screens or for illumination in military operations. However, its use as a weapon to directly target humans is regulated under international humanitarian law. The use of white phosphorus in populated areas or against civilian targets is prohibited.
Why do flour manufacturers add calcium carbonate to flour?
Because Calcium Carbonate contains a source of calcium it is added to flour. All manufacturers must add calcium into flour by law. This helps our bones and muscles stay healthy.
What three things have to be added to flour to ensure that it contains the right amount required by law?
Most states require flour to contain added vitamins and minerals to replace those lost during milling. The most important of these are iron and the B vitamins, especially thiamin, riboflavin, and niacin.
What vitamin is in milk yogurt and cheese?
Cheese and yoghurt are both dairy - so calcium, some vitamin d and protein. In bread you've got vitamin B complexes, folic acid and carbohydrate. (Vitamins and minerals are usually added to bread and flour by law, rather than occurring naturally in the bread).
Who made the law that matzah must be made in 18min?
Rabbis determined that if flour is baked within 18 minutes of water being added, it doesn't have time to begin the natural leavening process.
According to the law of conservation of mass how many atoms of calcium can react to produce more calcium?
The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction, only rearranged. This means that the number of calcium atoms present before the reaction must be the same as the number of calcium atoms present after the reaction. Therefore, if a certain number of calcium atoms react to produce more calcium, the total number of calcium atoms will remain the same.
Is Enriched Flour Organic or Inorganic?
Enriching flour is the process of adding vitamins and minerals (required by law) to flour. As vitamins and minerals are usually 'naturally' occuring, the flour can still be 'organic', so long as the vitamins/minerals are produced by 'organic' means.
Can laws be added?
Yes, laws can be added. the congress can create a law, but the president must accept the law first.
What are in-laws relationships to family members?
Its simply what they are with "in-law" added to the end i.e. son-in-law, mother-in-law, etc.
Solid white line cobb county law?
The law is that it is not legal to cross a solid white line in cobb county.
How has the idea of equal protection of the law be used to protect peoples rights?
It has been useds to protect people's rights because it was added after the Civil War. It was added along with the 14th amendment. It was an attempt to give the Afican Americans the same rights as any free white man had.
Extended value added tax?
The extended value added tax is a new law that was passed in the Philippines in 2005. This law adds taxes to petroleum, electricity, and other services.
Can three atoms of calcium react to produce six atoms of calcium?
No: That would violate the law of conservation of mass and require creation of new atoms, which no chemical reaction can achieve.
