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mezya [45]
3 years ago
14

If the statement is true, select True. If it is false, select False.

Chemistry
2 answers:
marusya05 [52]3 years ago
7 0

Answer:

True

Explanation:

tatyana61 [14]3 years ago
5 0

Answer:

is a chemical bond i think is true

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bezimeni [28]

Answer:

evaporation, vaporisation, boiling if change occurs at boiling point

Explanation:

5 0
3 years ago
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How would decreasing the pressure affect the equilibrium of this reaction? Hat 12 32H1 O A. The reaction would remain in equilib
Harrizon [31]

A. The reaction would remain in equilibrium

<h3>Further explanation</h3>

Given

Reaction

H₂ + I₂ ⇔ 2HI

Required

the effect of pressure changes

Solution

In the equilibrium system :

<em>Reaction = - action   </em>

⇒shift the reaction to the right or left.  

The pressure usually affects the gas equilibrium system(only count the number of moles of gases)

The addition of pressure, the reaction will shift towards a smaller reaction coefficient  ((the fewest moles of gas  )

Reaction

H₂ + I₂ ⇔ 2HI

The reactant side of the equation has 2 moles of a gas(1 mole H₂ and 1 mole  I₂) ; the product side has 2 moles HI

So the total number of moles from both sides is the same(2 moles) so that the change in volume (pressure) <em>does not change the direction of equilibrium⇒No shift will occur </em>

6 0
3 years ago
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A chemistry student answered 81 questions correctly on a 90-question test. What
nika2105 [10]

Answer:

90%

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it will be 81/90 ×100/1

81 over 90 × 100 over 1

8 0
3 years ago
What is the oxidation state of phosphorus in the following compounds?
Korolek [52]
A) H3PO4
H(+1),
P(X)
O(-2)
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c) PH3
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5 0
4 years ago
What properties of a substance effect how substances in a mixture separate
IrinaVladis [17]
Mixture is a material made up of two or more different substances which are mixed. A mixture refers to the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensionsand colloids.[1][2]

Mixtures are one product of mechanically blending or mixing chemical substances such as elements and compounds, without chemical bonding or other chemical change, so that each ingredient substance retains its own chemical properties and makeup.[3]Despite that there are no chemical changes to its constituents, the physical properties of a mixture, such as its melting point, may differ from those of the components. Some mixtures can be separated into their components by using physical (mechanical or thermal) means. Azeotropes are one kind of mixture that usually pose considerable difficulties regarding the separation processes required to obtain their constituents (physical or chemical processes 

4 0
3 years ago
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