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emmasim [6.3K]
3 years ago
9

Answer pls pls plsss

Chemistry
2 answers:
ss7ja [257]3 years ago
4 0
C.
Mark me Brainly!
julia-pushkina [17]3 years ago
3 0
The answer is c god it’s hard to fill in enough characters lol
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What is enthalpy?
aleksandrvk [35]

Answer: the heat content of a system at constant pressure.

Explanation:

Enthalpy is defined as the heat content of a system at constant pressure.

It is the heat absorbed or released during a reaction at constant pressure,denoted as ΔH.

7 0
3 years ago
What happens to an object's temperature if the kinetic energy of its particles decrease
ser-zykov [4K]
The temperature decreases
8 0
3 years ago
The absolute temperature of a gas is increased four times while maintaining a constant volume. What happens to the
weqwewe [10]

Answer:

The pressure increases by a factor of four.

Explanation:

Let's consider a gas at a given temperature and pressure (T₁, P₁). The absolute temperature of a gas is increased four times (T₂ = 4 T₁) while maintaining a constant volume. We can assess the effect on the pressure (P₂) by using Gay Lussac's law.

P₁/T₁ = P₂/T₂

P₂ = P₁ × T₂/T₁

P₂ = P₁ × 4 T₁/T₁

P₂ = 4 P₁

The pressure increases by a factor of four.

4 0
2 years ago
Which of these is the correct electron configuration
sdas [7]

Answer:

1s2,2s2,2p6,3s2,3p6,4s2

Explanation:

sorry but I didn't get the option sowrite by my self to be sure u can search or I may show u the way

6 0
3 years ago
How many grams of HCl are required to produce 11.2 L of Cl2.The reaction occurs in the presence of excess HCl and at STP
Aleks04 [339]

Answer:

Explanation:

Equation of reaction:

2HCl → H₂ + Cl₂

From the equation of reaction,

From ideal gas equation,

PV = nRT

P = pressure of the ideal gas

V = volume of the gas

n = number of moles

R = ideal gas constant

T = temperature of the gas

At STP,

P = 1.0atm

T = 273.15K

R = 0.082J/mol.K

PV = nRT

1 .0 × 11.2 = n × 0.082 × 273.15

11.2 = 22.398n

n = 11.2 / 22.398

n = 0.50mole

From the equation of reaction,

2 moles of HCl = 1 mole of Cl₂

X moles HCl = 0.5mole

X = (2 × 0.5) / 1

X = 1 mole of HCL

Number of mole = mass / molar mass

Molar mass of HCl = 1 + 35.5 = 36.5g/mol

Mass = number of mole × molar mass

Mass = 1 × 36.5

Mass = 36.5g

36.5g of HCl is required to to produce 11.2L of Cl₂

6 0
3 years ago
Read 2 more answers
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