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3 years ago

How can two objects with different masses have the same amount of gravitational potential energy?

1 answer:

4 0

Answer:In reality, if we are talking about an object under the influence of the Earth's gravity, the gravitational potential energy of the object will change minutely, even if kept at the same elevation above sea level, because of differences, if it is moved to different positions, due to changes in sub-surface rock masses

Explanation:

Branliest pls :)

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a solution of KCl in water has a concentration of 0.243 M. The solution has a volume of 0.580 L. How many grams of KCl are prese

Novosadov [1.4K]

Answer:

10.5 g

Explanation:

Step 1: Given data

Molar concentration of the solution (C): 0.243 M

Volume of solution (V): 0.580 L

Step 2: Calculate the moles of solute (n)

Molarity is equal to the moles of solute divided by the liters of solution.

M = n/V

n = M × V

n = 0.243 mol/L × 0.580 L = 0.141 mol

Step 3: Calculate the mass corresponding to 0.141 moles of KCl

The molar mass of KCl is 74.55 g/mol.

0.141 mol × 74.55 g/mol = 10.5 g

8 0

3 years ago

Explain the arrangement of particles in solids, liquids and gases.

Alex787 [66]

Solids are tightly compacted
Liquids are medium
And gases are very spaced and floating around

6 0

3 years ago

Please help

ludmilkaskok [199]

Answer: The molecular formula will be $C_3H_9$

Explanation:

Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

The empirical formula is $CH_3$

The empirical weight of $CH_3$ = 1(12)+3(1)= 15g.

The molecular weight = 45.0 g/mole

Now we have to calculate the molecular formula:

$n=\frac{\text{Molecular weight }}{\text{Equivalent weight}}=\frac{45}{15}=3$

The molecular formula will be= $3\times CH_3=C_3H_9$

Thus molecular formula will be $C_3H_9$

6 0

3 years ago

If the solvent is a liquid, then the solute:

Lelechka [254]

Answer:

must be either a gas or liquid

8 0

3 years ago

Can methene exist? Explain yes or no

finlep [7]

Methene (non existent) would be an alkene and therefore would need a carbon to carbon double bond, since it only has one carbon it can't bond to another, this is why the lowest alkene is ethene (C2H4). i hope this helps

7 0

4 years ago