Answer:
emulsion
Explanation:
An emulsion is a mixture of two or more liquids that are normally immiscible. Emulsions are part of a more general class of two-phase systems of matter called colloids.
The full question is shown in the image attached
Answer:
See explanation
Explanation:
In naming an alkane, the first thing we do is to obtain the parent chain by counting the number of carbon atoms in the chain.
When we obtain that, then we identify the substituents and number them in such a way that they have the lowest numbers. The compounds shown have the following names according to the order in which the structures appear in the image attached;
1. 2-methyl propane
2. 2,4-dimethyl heptane
3. 2,2,3,3-tetramethyl butane
4. 5-ethyl-2,4-dimethyl octane
Answer:
Number of moles of solute = 0.6 mole
Mass =13.8 g
Explanation:
Given data:
Number of moles of sodium = ?
Volume = 2.0 L
Molarity = 0.30 M
Mass in gram of sodium= ?
Solution:
<em>Number of moles:</em>
Molarity = number of moles of solute / volume in litter
Number of moles of solute = Molarity × volume in litter
Number of moles of solute = 0.30 M × 2.0 L
Number of moles of solute = 0.6 mole
<em>Mass in gram:</em>
Mass = Number of moles × molar mass
Mass = 0.6 mole× 23 g/mol
Mass =13.8 g
Answer: The correct option is - The reaction container is cold.
Explanation: Endothermic reaction is a reaction in which the system absorbs energy from the surroundings, generally in the form of heat.
In this process, the surrounding becomes cold after loosing energy.
And here, the surrounding is reaction container and hence, will become cold by loosing its energy to the reaction mixture.
The answer is no. 4. Bismuth (Bi)
Across the period, from left to right, metallic character
decreases, meaning, when it is going down, the last element in a group will
have the most metallic character. Since Bismuth (bi) is the last element, it is
the most metallic.
The arrangement of the group 15 elements in ascending rate
of metallic character is: N (Nitrogen) P (Phosphorus), As (Arsenic), Sb
(Antimony) and Bi (Bismuth). Bismuth has the lowest rate of electronegativity
and ionization energy thus, it is more likely to lose an e- than the rest of
the elements of the said group, which is why it is considered the most metallic.
