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stepladder [879]
2 years ago
11

Write a scientific explanation that answers the following question: Is matter conserved during a

Chemistry
1 answer:
soldier1979 [14.2K]2 years ago
6 0
Claim is : chemical reactions are smaller
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What element/compounds are used in the melting of ice?
Galina-37 [17]

The temperature of the air, pavement, and the type of ice-melt compound used will affect the rate at which the ice melts. There are many different ice-melt compounds available from traditional rock salt (sodium chloride) to ice-melt pellets (calcium chloride).

8 0
3 years ago
Periodic Table: Why are group 1A elements called alkali metals?
FrozenT [24]

Answer:

Explanation:

The elements in Group I of the periodic table are called alkali metals. They are called alkali metals because they react with water to form alkali solutions. These metals are very reactive; hence they have to be stored under oil to protect them from corrosion by air and waterwaterwater

5 0
1 year ago
Can you please help me to answer this? <br>I give you a brainlest! ​
zysi [14]
9 is B
6 is A
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5 0
2 years ago
Identify the types of intermolecular forces found for each of the liquids and relate these to the shape of the drop as seen from
pav-90 [236]

Explanation:

Oil molecules are non-polar, and they can't form hydrogen bonds. Dispersion forces are present in C12H26 (oil).

H20 (water) are polar, has hydrogen bonds, it also has dipole-induced dipole and London dispersion forces.

The difference between them is that adhesion refers to the clinging of unlike molecules and cohesion refers to the clinging of like molecules.

In C12H26 (oil)  the adhesive forces are stronger than the cohesive forces as a result, oil molecules tend to stick to the walls of the container.

In  H2O (water) the cohesive forces is greater than the adhesive forces, as a result water molecules tend to stick together.

8 0
3 years ago
A chemist prepares a solution of silver nitrate by measuring out of silver nitrate into a volumetric flask and filling the flask
Snezhnost [94]

Amount of silver nitrate taken = 269.μmol AgNO_{3}

Volume of the solution = 300. mL

Concentration of a solution is generally expressed in terms of molarity. Molarity is defined as the moles of a substance present per liter of the solution.

Molarity = \frac{Moles of solute}{Volume of solution(L)}

We want the concentration in millimoles/L.

Converting μmol to millimol solute:

269.μmol * \frac{1 millimol}{1000 micromol} = 0.269 millimol

Volume from mL to L: 300. mL * \frac{1 L}{1000 mL} = 0.300 L

Therefore concentration of the chemist's solution = \frac{0.269 millimol}{0.300 L} =  0.897 \frac{millimol}{L}

8 0
3 years ago
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