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aleksley [76]
2 years ago
15

All the mixture are harmful for us. is this statement true? justify with two examples​

Chemistry
2 answers:
Natasha2012 [34]2 years ago
8 0

Answer:

no some of mixture are useful

Explanation:

h2 and o2 to form water

Taya2010 [7]2 years ago
3 0

Answer:

no.it is false.some are useful.like mixture of h2 and O 2 to form water.

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5 physical properties of osmium
lisabon 2012 [21]
In 1803AD, Osmium was discovered by Smithson Tennant when dissolving an impure sample of platinum in aqua regia, a mixture of hydrochloric and nitric acids. He was able to determine that the black powder left behind after dissolving the platinum was actually a mixture of two new elements, indium and osmium.

•Osmium is a bluish-white and shiny metal.

•Osmium is very hard and is brittle even at very high temperatures.

•Osmium has the lowast vapor pressure and the highest melting point among the platinum group of metals.

•Osmium's density is slightly more than iridium hence is credited as the heaviest element.
6 0
2 years ago
write word and formula equation for the reaction in which aqueous solutions of sulfuric acid and sodium hydroxide reacts to form
FromTheMoon [43]

Answer:

H2SO4 ( Sulfuric Acid ) + NaOH ( Sodium Hydroxide ) > Na2SO4 ( Sodium Sulfate ) + H2O ( Water )

Explanation:

8 0
3 years ago
Read 2 more answers
Why do atoms combine in an ionic bond
victus00 [196]

Answer:

Ionic bonds are formed through the exchange of valence electrons between atoms, typically a metal and a nonmetal. The loss or gain of valence electrons allows ions to obey the octet rule and become more stable. Therefore, ions combine in ways that neutralize their charges.

Explanation:

5 0
2 years ago
The table shows columns that brenda uses for her notes on the properties of elements. her notes state that some elements can rea
AleksandrR [38]

The element should be placed in the column for metalloids. Option A

<h3>What is the property of metals?</h3>

We know that the properties of metals can be used to identify an unknown substances as a metal. We know that metals are able to react with acids to liberate the metal salt and hydrogen gas. Metals do not react with bases because they can not accept electrons.

Metalloids are generally amphoteric in nature. They can react with both the acid and the basses to form compounds. The nonmetals do not react with acid or base.

Looking at the result, we are told that the entry in the second row have the entries  nothing, nothing, nothing. If this is the outcome, then it follows that the element should be placed in the column for metalloids.

Learn more about metalloids:brainly.com/question/2548493

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4 0
1 year ago
All atoms of a given element are identical was proven wrong because of the existence or
vagabundo [1.1K]

Answer:

they are all similar

Explanation:

6 0
3 years ago
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