2 years ago

Can some one help me in this I hope this will be easy for you :)

1 answer:

kramer2 years ago

5 0

Answer:

c) i) Mg²⁺ ii) O²⁻

Explanation:

I don't know the answer to Q7. because you don't show the diagram

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Anna35 [415]

The answer is A) 1.13 L

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3 years ago

stellarik [79]

The answer is surface waves.

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3 years ago

suter [353]

B and D is out. It cant be A because heat of combustion is substance not compound. So the answer is D.

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3 years ago

tatiyna

Answer:

1.242 g/mL

Explanation:

Step 1: Given data

Mass of the empty container (m₁): 80.21 g

Mass of the filled container (m₂): 105.22 g

Volume of the unknown liquid (V): 20.14 mL

Step 2: Calculate the mass of the liquid

The mass of the liquid is equal to the difference between the mass of the filled container and the mass of the empty container.

$m = m_2 - m_1 = 105.22g - 80.21 g = 25.01 g$

Step 3: Calculate the density of the unknown liquid

The density of the liquid is equal to its mass divided by its volume.

$\rho = \frac{m}{V} = \frac{25.01g}{20.14mL} = 1.242 g/mL$

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2 years ago

Katarina [22]

Land will warm faster

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2 years ago