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ANTONII [103]
3 years ago
13

What is it called when a object changes to a different state of matter,physical or chemical change

Chemistry
2 answers:
Anit [1.1K]3 years ago
8 0

physical changes i think

kupik [55]3 years ago
5 0

The answer would be a <em>CHANGE OF STATE</em>. Melting,Evaporating, and Freezing are examples.

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An ice cube with a volume of 45.0ml and a density of 0.9000g/cm3 floats in a liquid with a density of 1.36g/ml. what volume of t
Grace [21]

Answer : The volume of the cube submerged in the liquid is, 29.8 mL

Explanation :

First we have to determine the mass of ice.

Formula used :

\text{Mass of ice}=\text{Density of ice}\times \text{Volume of ice}

Given:

Density of ice = 0.9000g/cm^3=0.9000g/mL

Volume of ice = 45.0 mL

\text{Mass of ice}=0.9000g/mL\times 45.0mL

\text{Mass of ice}=40.5g

The cube will float when 40.5 g of liquid is displaced.

Now we have to determine the volume of the cube is submerged in the liquid.

\text{Volume of ice}=\frac{\text{Mass of liquid}}{\text{Density of liquid}}

\text{Volume of ice}=\frac{40.5g}{1.36g/mL}

\text{Volume of ice}=29.8mL

Thus, the volume of the cube submerged in the liquid is, 29.8 mL

5 0
4 years ago
Can anyone help me with this?
Bond [772]

Answer:

Label 2

Explanation:

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3 0
3 years ago
A 60.2-ml sample of hg (density = 13.6 g/ml) contains how many atoms of hg?
Over [174]
Density is calculated using the following rule:
density = mass / volume
therefore:
mass = density * volume
mass of Hg = 13.6 * 60.2 = 818.72 grams

From the periodic table:
molar mass of Hg = 200.59 grams

number of moles = mass / molar mass
number of moles of Hg = 818.72 / 200.59 = 4.08 moles

each mole contains Avogadro's number of atoms.
Therefore,
number of atoms in the given sample = 4.08 * 6.022 * 10^23
                                                            = 2.456976 * 10^24 atoms
6 0
3 years ago
Which of the following list all the elements that are present in a molecule of potassium carbonate K2C03?
meriva
H
Since K stands for potassium, C stands for Carbon and O stands for Oxygen
3 0
3 years ago
What is the [H] in a solution with a pH of 9.92
professor190 [17]

Answer:

the solution is acidic as its ph has already exceeded the neutral level

6 0
3 years ago
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