A substance composed of two or more elements in a fixed, definite proportion is

1 answer:

3 0

A compound

(i think) because it consists of two + elements, whose ratios are shown clearly in the chemical formula, meaning it has a fixed, definite proportion.

hope that helps :)

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The reduction of nitrogen monoxide is described by the following chemical equation: 2H2 (g) +2NO (g) 2H20 ()N2 (g Suppose a two-

Ipatiy [6.2K]

Answer:

Reasonable Second step- $N_{2}O(g)+H_{2}(g)\rightarrow N_{2}(g)+H_{2}O(g)$

Explanation:

The given single step chemical reaction is as follows.

$2H_{2}(g)+2NO \rightarrow 2H_{2}O(g)+N_{2}(g)$

Suppose a two-step mechanism is proposed for this reaction,

The reaction occured in two steps they are as follows.

$Step -1:H_{2}(g)+2NO \rightarrow N_{2}O(g)+H_{2}O(g)$

$Step-2:N_{2}O(g)+H_{2}(g)\rightarrow N_{2}(g)+H_{2}O(g)$

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Why are 99.9% of metals (pure) way more expensive than 95% metals?

a_sh-v [17]

Answer:

A pure metal is any metal that has not been joined with any other metal

Explanation:

5 0

2 years ago

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Ultra Clorox bleach is 6.68% sodium hypochlorite in water. How much of each is needed to make an 800.mL bottle?

sweet-ann [11.9K]

If we have 6.68% NaClO, it is the same as saying--> 6.68 grams NaClO= 100 mL of solution. we can use this as a conversion.

800. mL (6.68 mL/ 100 mL)= 53.4 mL

solution = solute + solvent

solute= NaClO
solvent= H2O

solvent= 800-53.4= 747 mL of H2O

so, we you need 53.4 mL of NaClO and 747 mL of water or 53.4 grams of NaClO and 747 mL of water

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3 years ago

The electron dot diagram for an atom of carbon has how many pair(s) of electrons and how many unpaired electrons

krok68 [10]

Answer:

The resultant structure is shown below. This structure contains four shared pairs of electrons, which are located on all four "sides" of carbon's electron dot structure. Each of these shared pairs was created by pairing one of carbon's unpaired electrons with an unpaired electron from chlorine.

Explanation:

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2 years ago

True or False. The amount of heat required to raise the temperature of an object by 1 degree celsius is heat capacity.

Olenka [21]

this is exactly true..i know this answer

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2 years ago