2. A solution in which 50 grams of salute is dissolved in 250 grams of solution has a concentration of

Answers

Answer 1

Answer: The fact that the unit is supposed to be in percent makes me think it is referring to percent mass. To find percent mass you need to find find the divide the mass of solute by the total mass of solution and than multiply that by 100%.
%mass=(50g/300g)x100%
%mass=0.167%

I hope this helps.

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Hey i really need help can anyone help i did attached it for you and it is since

What reactions are involved in making plastic bags and what are the molecules that make up a plastic bag like?

Answers

Plastic bags are made up of plastic film, non-woven fabric, or plastic textile. The molecules that are present in plastic bags are polymers. Polymers are large molecules made up of repeating units called monomers.
I know this isn't much, but I hope it helps! :)

I don’t get it? haha

Answers

Hello,

A molecule is

a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

I hope this helps

A plasma that has particles that never collide frequently enough to exchange kinetic energy and never reach a temperature equal to the surroundings is categorized as a

Answers

Answer: Thermal plasma

Explanation:

Answer:

A on edg

Explanation:

19. Which atom in a water molecule has the greatest electronegativity?a. one of the hydrogen atoms
b. both hydrogen atoms
c. the oxygen atom
d. There is no difference in the electronegativities of the atoms in a water molecule.

Answers

The oxygen atom in a water molecule has the greatest electronegativity. Therefore, the correct option is option C.

What is electronegativity?

The tendency of an atom of a particular chemical element could attract shared electrons while forming a chemical bond is represented by the symbol. The electronegativity of an atom is determined both by its atomic number as well as the distance between its valence electrons and the charged nucleus.

The higher the related electronegativity, the more electrons an atom or substituent group attracts. Electronegativity is a simple approach to quantify bond energy as well as the sign and degree of a bond's molecular polarity, that describes a bond all along continuum between covalent through ionic bonding. The oxygen atom in a water molecule has the greatest electronegativity.

Therefore, the correct option is option C.

To learn more about electronegativity, here:

brainly.com/question/1163776

#SPJ6

Answer:

The Oxygen Atom

Explanation:

How are heterogeneous and homogeneous mixtures separated?

Answers

Explanation:

Homogeneous mixture is separated using two stage separation process: mobile stage and stationary stage. The mobile phase are absorbent such as water, chemicals while the stationary stage is the column used for the separation process. The integral method of separation of homogeneous mixtures is called chromatography (analytical or preparative). Other method of separation of homogeneous mixtures is called distillation and it is based on the various boiling points of the component of mixture.

While heterogeneous mixtures are separated based the properties of the components. One method of separation of solids suspended in liquids is simple filtration.

MgCl2 +?g
Ll2CO3 →
75g
MgCO3 +
135g
LiCl
34g

solve this

Answers

Answer:

MgCl₂ = 94 g

Explanation:

Law of conservation of mass:

According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

Explanation:

This law was given by french chemist Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

For example:

Chemical equation:

MgCl₂ + Li₂CO₃ → MgCO₃ + 2LiCl

? + 75 g = 135 g + 34 g

The mass of reactant and product must be equal. That's why,

135+ 34 = 169 on product side

94 + 75 = 169 on reactant side

MgCl₂ + Li₂CO₃ → MgCO₃ + 2LiCl

94 + 75 g = 135 g + 34 g

169 g = 169 g

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