CHEMISTRY HIGH SCHOOL

When a lithium atom forms an Li+ ion, the lithium atom(1) gains a proton
(2) gains an electron
(3) loses a proton
(4) loses an electron

Answers

Answer 1
Answer:

When a lithium atom forms a Li+ ion, the lithium atom looses an electron. Therefore, option 4 is correct.

What is an electron ?

The elementary electric charge of the electron is a negative one, making it a subatomic particle. Due to their lack of components or substructure, electrons, which are members of the lepton particle family's first generation, are typically regarded to be elementary particles.

Quarks make up protons and neutrons, but not electrons. We believe that quarks and electrons are basic particles that are not composed of lesser subatomic particles.

Three protons and three electrons make up a lithium atom. It may become an ion if one of its electrons is lost. It now has a net positive charge since there are more positive protons than negative electrons. It is a positive ion as a result.

Thus, option 4 is correct.

To learn more about an electron, follow the link;

brainly.com/question/1255220

#SPJ2
Answer 2
Answer:

Answer:

(4) loses an electron

it has 3 protons and electrons, proton no. cannot change, to make lithium an ion, it needs to have an exact number of electrons so that the electronic shell can be 2, 8… something like that. So lithium atom loses an electron in order to for Li+ ion. Making the electrons to have 2 as an electronic shell.

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Calculate the molecular weight of a dibasic acid.0.56gm of which is required 250ml of N/20 sodium hydroxide solution for neutralization.​

Answers

Answer: The molecular weight of the dibasic acid is 89.6 g/mol

Explanation:

Normality is defined as the amount of solute expressed in the number of gram equivalents present per liter of solution. The units of normality are eq/L. The formula used to calculate normality:

\text{Normality}=\frac{\text{Given mass of solute}* 1000}{\text{Equivalent mass of solute}* \text{Volume of solution (mL)}}      ....(1)

We are given:

Normality of solution = (1)/(20)=0.05N

Given mass of solute = 0.56 g

Volume of solution = 250 mL

Putting values in equation 1, we get:

0.05=\frac{0.56* 1000}{\text{Equivalent mass of solute}* 250}\n\n\text{Equivalent mass of solute}=(0.56* 1000)/(0.05* 250)=44.8g/eq

Equivalent weight of an acid is calculated by using the equation:

\text{Equivalent weight}=\frac{\text{Molar mass}}{\text{Basicity}}   .....(2)

Equivalent weight of acid = 44.8 g/eq

Basicity of an acid = 2 eq/mol

Putting values in equation 2, we get:

44.8g/eq=\frac{\text{Molar mass}}{2eq/mol}\n\n\text{Molar mass}=(44.8g/eq* 2eq/mol)=89.6g/mol

Hence, the molecular weight of the dibasic acid is 89.6 g/mol

Coal is formed when

Answers

dead animals that's all you need to know oh and also dead plants

Fill in the Blank. 1. You want to be shielded from all three types of nuclear radiation. If you find shielding that blocks _________________ radiation, then it will most likely also block the other two types. 2. When nuclear radiation enters the tube of a Geiger counter, it ____________________ the atoms of the gas contained in the tube. 3. The particles that make up protons and neutrons and are thought to be basic units of matter are ____________________.

Answers

1.  If you find shielding that blocks gamma radiation,then it will most likely also block the other two types. (as the hardest radiation)
2. When nuclear radiation enters the tube of a Geiger counter, it the excited atoms of the gas contained in the tube. (this type deposits all energy into a single atom)
3 The particles that make up protons and neutrons and are thought to be basic units of matter are quarks.

Substances with a higher temperaturea. have less thermal energy.
b. have more molecular disorder.
c. become more orderly if heated more.
d. will move thermal energy to a hotter substance.

Answers

B. High temp = more thermal energy =more disorder as molecules move randomly = move from hot to colder substance(heat moves from hot to cold)

Answer:

b is the corect awnser

Explanation:

In liquid water, an equilibrium exists between H2O(ℓ) molecules, H+(aq) ions, and OH−(aq) ions. A person experiencing acid indigestion after drinking tomato juice can ingest milk of magnesia to reduce the acidity of the stomach contents. Tomato juice has a pH value of 4. Milk of magnesia, a mixture of magnesium hydroxide and water, has a pH value of 10.Complete the equation in your answer booklet for the equilibrium that exists in liquid water.

Answers

In liquid water, an equilibrium exists between H2O(ℓ) molecules, H+(aq) ions, and OH−(aq) ions. A person experiencing acid indigestion after drinking tomato juice can ingest milk of magnesia to reduce the acidity of the stomach contents. Tomato juice has a pH value of 4. Milk of magnesia, a mixture of magnesium hydroxide and water, has a pH value of 10. The balanced chemical equation is 2H2 + O2 = 2H2O.

In which type of chemical reaction do two or more reactants combine to form one product, only?a. synthesis
b. decomposition
c. single replacement
d. double replacement.

Answers

A chemical reaction is defined as the process in which two more reactants are converted to form one or more different product.

The chemical reaction in which two more reactants combine to form one product is a synthesis reaction.

Synthesis reactions are defined as the reaction in which two different atoms or molecules react to form a different compound. Synthesis reactions are exothermic reactions, such that the reactions release energy in the form of heat and light.

One of the most common examples of a synthesis reaction is the formation of sodium chloride. It can be expressed as:

Na (Sodium) + Cl (Chlorine) \rightarrowNaCl (Sodium Chloride)

Thus, the synthesis reaction will result in one different compound or product.

The correct answer is Option A.

To know more about synthesis reaction, refer to the following link:

brainly.com/question/24936069
Synthesis is when multiple reactants come together to form one. Decomposition is when one reactant breaks down to form multiple products which are either elements or compounds. Single replacement is when there is an element and a compound and the element switch spots with the other element( metal switch with metal, nonmental with nonmetal, vice versa). The element has to be more reactive than the like element in the compound in order for it to be able to switch. Use the reactivity series to help you with this. Double Replacement is when you have two compounds and like elements switch places.
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