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3 years ago

Question 4 Volume is what type of physical property?

Chemistry

1 answer:

LUCKY_DIMON [66]3 years ago

3 0

I think it would be oxygen

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1. A 250g chunk of metal is heated with 400 joules of energy and the temperature goes from 20 °C to 25°C. What is its specific h

Paha777 [63]

The specific heat capacity of this chunk of metal is equal to 0.32 J/g°C.

Given the following data:

Mass of metal = 250g

Quantity of energy = 400 Joules

Initial temperature = 20°C

Final temperature = 20°C

To determine the specific heat capacity of this chunk of metal:

<h3>The formula for quantity of heat.</h3>

Mathematically, quantity of heat is given by the formula;

$Q = mc\theta$

Where:

Q represents the quantity of heat.

m represents the mass of an object.

c represents the specific heat capacity.

∅ represents the change in temperature.

Making c the subject of formula, we have:

$c = \frac{Q}{m\theta}$

Substituting the given parameters into the formula, we have;

$c = \frac{400}{250 \times (25-20)}\\\\c = \frac{400}{250 \times 5}\\\\c = \frac{400}{1250 }$

Specific heat, c = 0.32 J/g°C.

Read more on specific heat here: brainly.com/question/2834175

5 0

2 years ago

What sequence should be followed when conducting a laboratory investigation? Make observations, gather experimental data, form a

AURORKA [14]

Answer:

Define a problem, form a hypothesis, gather experimental data, form a conclusion

3 0

3 years ago

Read 2 more answers

When H2(g) reacts with Cl2(g) to form HCl(g) , 185 kJ of energy are evolved for each mole of H2(g) that reacts. Write a balanced

Katyanochek1 [597]

Answer:

H₂(g) + Cl₂(g) → 2HCl(g) + 185kJ

Explanation:

In a chemical reaction, enthalpy of reaction ΔH is a thermodynamic constant that gives information if the reaction is exothermic (Produce heat if reacts) or endothermic (Consume heat if reacts).

In the reaction:

H₂(g) + Cl₂(g) → 2HCl(g) ΔH = -185kJ

As ΔH <0, the reaction is exothermic, that means, produce heat, writing a balanced thermochemical equation:

H₂(g) + Cl₂(g) → 2HCl(g) + 185kJ

The enthalpy is as a product beacause an exothermic reaction produces heat.

I hope it helps!

7 0

3 years ago

What does it mean for a strong base to be in equilibrium

bonufazy [111]

The position of equilibrium lies far to the right, with products being favored.

8 0

3 years ago

How many particles are in one mole of copper (II) sulfate, CuSO4?

Kobotan [32]

2. Avogadro’s number

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3 years ago