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3 years ago

What is the atomic number of the atoms that make up carbon (C)?

Chemistry

2 answers:

Vsevolod [243]3 years ago

7 0

Answer:

Explanation:

The atomic number (chemical sombol) is 6

Anna [14]3 years ago

4 0

Carbon: 6 ;) it’s right trust me

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What units could you use to describe the mass of a tablespoon

castortr0y [4]

I believes you would use grams to describe the mass of a tablespoon an you should report that guy

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2 years ago

A Flame test is an example of chemistry property. What evidence can you use to back your statement up?

Lena [83]

The flame test is a qualitative test used in chemistry to help determine the identity or possible identity of a metal or metalloid ion found in an ionic compound. If the compound is placed in the flame of a gas burner, there may be a characteristic color given off that is visible to the naked eye. And for the proof. The flame test provided evidence that specific atoms are present in compounds by the color of the flame. The metal atoms are what is responsible for the colors during the flame test. The color of the flame will be yellow-orange because Sodium (Na) is present in all the compounds that have a yellow-orange flame. Hope this helps! Mark brainly please!

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2 years ago

Ethanol and water appear the saame to the naked eye at 25C. Which properties can help a chemist distinguish between? denisty, ma

Oxana [17]

Explanation:

As it is known that there are two types of properties. These are extensive and intensive.

Extensive properties : Properties that depend on the size or amount of system. For example, mass, volume etc.

Intensive properties : Properties that do not depend on the size or amount of system. For example, density, melting point, specific heat capacity etc.

On the basis of these properties water and ethanol are distinguished as follows.

Density of water is 997 kg/ $m^{3}$ whereas density of ethanol is 789 kg/ $m^{3}$ . Both these liquids can be separated by intensive properties.
Melting point of water is zero degree celsius whereas melting point of ethanol is -114.1 degree celsius.
Specific heat capacity of water is 4.184 $J/g ^{o}C$ whereas specific heat capacity of ethanol is 2.46 $J/g ^{o}C$ .
Mass of the given liquids cannot be differentiated because they will keep on changing depending on the quantity required. As mass is an extensive property, therefore, it is difficult to differentiate between the two liquids.

Thus, we can conclude that properties like density, melting point, specific heat capacity can help a chemist distinguish between ethanol and water.

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3 years ago

Skeletal muscle is controlled by the organism.

rosijanka [135]

Some of the muscle attached to the skeleton is voluntary and may be used for movement.

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2 years ago

Read 2 more answers

Which interactions and processes contribute to the dissolution of ionic compounds in water?

Tanya [424]

Explanation:

Polarity is defined as the development of partial charges on the atoms of a molecule. In a water molecule, there are hydrogen and oxygen atoms.

Due to the difference in electronegativity of both hydrogen and oxygen atom there is development of partial positive charge on hydrogen atom and a partial negative charge on oxygen atom.

So, when bond between hydrogen and oxygen will break down then it will form hydrogen ions ( $H^{+}$ ) and oxygen ions ( $O^{2-}$ ).

Ion-dipole interactions are defined as the interactions that occur when an ion interacts with the dipole of a molecule.

When an electron is added to a neutral atom to convert it into a negative ion then the amount of change taking place in its energy is known as electron affinity.

So, oxygen atom has an affinity towards cations and hydrogen atom has an affinity for anions.

Thus, we can conclude that following interactions and processes contribute to the dissolution of ionic compounds in water:

1. Affinity of oxygen towards cations

2. Ion–dipole interactions

4. Hydration

6. Affinity of hydrogen towards anions

3 0

2 years ago