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Paha777 [63]
2 years ago
8

According to Newton's Third Law, If one object exerts a force on a second object, the second object exerts a force on the first

object that is:
equal in magnitude and opposite in direction

equal in magnitutde and in the same direction

different in magnitude compared to the original force

the same direction as the original force
Chemistry
1 answer:
blagie [28]2 years ago
3 0

Equal in magnitude and opposite in direction.

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A sample of an unknown substance has a mass of 0.158 kg. If 2,510.0 J of heat is required to heat the substance from 32.0°C to 6
Alexxandr [17]
Specific heat capacity is the required amount of heat per unit of mass in order to raise teh temperature by one degree Celsius. It can be calculated from this equation: H = mCΔT where the H is heat required, m is mass of the substance, ΔT is the change in temperature, and C is the specific heat capacity.

H = m<span>CΔT
2501.0 = 0.158 (C) (61.0 - 32.0)

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Which one of the following will change the value of an equilibrium constant?
Ad libitum [116K]

Answer:

(E) changing temperature

Explanation:

Consider the following reversible balanced reaction:

aA+bB⇋cC+dD

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Kc = ([C]^c * [D]^d) / ([A]^a * [B]^b)

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[C] and [D] are the concentrations of the products in the equilibrium; [A] and [B] reagent concentrations in equilibrium; already; b; c and d are the stoichiometric coefficients of the balanced equation. Concentrations are commonly expressed in molarity, which has units of moles / 1

There are some important things to remember when calculating Kc:

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- Pure solids and liquids, including solvents, are not considered for equilibrium expression.

- The reaction must be balanced with the written coefficients as the minimum possible integer value in order to obtain the correct value of Kc

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g Which statement concerning the structure of the atom is correct? Protons and neutrons have most of the mass and occupy most of
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Protons and neutrons have most of the mass but occupy very little of the volume of the atom.

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A. how do you determine the charge of an element?
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Answer:

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Charge  = number of protons  - number of electrons

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