What scientists do that is the basis for their investigations

Answers

Answer 1

Answer:

Scientists conduct investigations based on systematic observations, research questions, and the development of testable hypotheses.

What isd the wprk of scientists

They design experiments, collect data, and analyze it using statistical methods. Peer review and replication are important for ensuring the validity of findings.

Scientists collaborate, communicate their results, and develop theories to explain natural phenomena. The scientific method and critical thinking are central to their work.

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Answer 2

Answer: Scientists use curiosity, imagination, and previous scientific study to create research questions and hypotheses to begin their investigations into natural phenomenon. They use this process which formally is called the scientific method to carefully construct experiments to guide investigations of the world around them.

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Write a balanced half-reaction describing the reduction of aqueous vanadium(V) cations to aqueous vanadium(I) cations.

Answers

Explanation:

Reduction is a chemical reaction in which electrons are gained by one of the atoms taking part in the reaction and lowering of an oxidation state of that atom.

Reduction takes place at the cathode.

In aqueous, vanadium(V) is present in +5 oxidation state which on reduction changes to vanadium(I) with +1 oxidation state.

The half reaction is :

$V^(5+)(aq)+4e^- \rightarrow V^(1+)(aq)$

The balanced half-cell reaction for the reduction of aqueous vanadium (V) cations to aqueous vanadium (I) cations is $\boxed{{{\text{V}}^(5 + )}\left({aq}\right) + 4{e^ - }\to {{\text{V}}^(1 + )}\left({aq}\right)}$ .

Further Explanation:

Redox reaction:

It is a type of chemical reaction in which the oxidation states of atoms are changed. In this reaction, both reduction and oxidation are carried out at the same time. Such reactions are characterized by the transfer of electrons between the species involved in the reaction.

The process of gain of electrons or the decrease in the oxidation state of the atom is called reduction while that of loss of electrons or the increase in the oxidation number is known as oxidation. In redox reactions, one species lose electrons and the other species gain electrons. The species that lose electrons and itself gets oxidized is called as a reductant or reducing agent. The species that gains electrons and gets reduced is known as an oxidant or oxidizing agent. The presence of a redox pair or redox couple is a must for the redox reaction.

The general representation of a redox reaction is,

${\text{X}} + {\text{Y}} \to {{\text{X}}^ + } + {{\text{Y}}^ - }$

The oxidation half-reaction can be written as:

${\text{X}} \to {{\text{X}}^ + } + {e^ - }$

The reduction half-reaction can be written as:

${\text{Y}} + {e^ - } \to {{\text{Y}}^ - }$

Here, X is getting oxidized and its oxidation state changes from to +1 whereas B is getting reduced and its oxidation state changes from 0 to -1. Hence, X acts as the reducing agent whereas Y is an oxidizing agent.

Initially, vanadium is present in +5 oxidation state. Its oxidation state changes from +5 to +1 oxidation state. The oxidation state of V is decreased during the reaction so reduction is taking place. The balanced reduction half-cell reaction is as follows

${{\text{V}}^(5 + )}\left({aq}\right) + 4{e^ - }\to {{\text{V}}^(1 + )}\left( {aq}\right)$

Learn more:

1. Which occurs during redox reaction? brainly.com/question/1616320

2. Oxidation and reduction reaction: brainly.com/question/2973661

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Redox reactions

Keywords: V5+, V1+, 4e-, oxidation state, reduction, oxidation, redox reaction, transfer of electrons, reducing agents, oxidizing agents.

Please help!!!---------------------------
The product of the reaction is MgO. Describe what you observed in the reaction. Then consider the general AB form of a synthesis reaction. Write the chemical reaction, balancing the equation so that there are an equal number of atoms of each type in both the reactants and the product.

Answers

Answer:

2Mg + O₂ ⇒ 2 MgO

Explanation:

When the MgO formation reaction is carried out experimentally, it can be seen that Magnesium a solid that has a metallic luster, when a flame is brought closer so that the oxidation reaction of the metal occurs, it is appreciated that a colored flame is produced white for a few moments (the duration of the flame depends on the initial amount of magnesium) and when the reaction finished, the magnesium became a white solid, opaque and very fragile. This is because Mg reacted with oxygen and magnesium oxide formed, which is the white solid.

Synthesis reactions are those in which two or more reagents combine to obtain a new product compound. The general formula for this type of reaction is:

A + B ⇒ C

In the case of the example of the statement, the reaction form of this synthesis would be:

2Mg + O₂ ⇒ 2 MgO

The equation is matched in such a way that there is the same amount of atoms of each species in both reagents and products, thus respecting the principle of conservation of mass.

Clarification: In the synthesis reaction, oxygen is placed in its molecular form (O₂), because the compound is naturally found, it is a simple substance. Magnesium, on the other hand, is found as a simple substance as atoms.

The reaction between Magnesium and Oxygen produces Magnesium Oxide. The balanced equation is 2Mg + O2 → 2MgO.

In the reaction, Magnesium (Mg) reacts with Oxygen (O) to produce Magnesium Oxide (MgO).

The balanced chemical equation for this synthesis reaction is:

2Mg + O2 → 2MgO

In this equation, there are an equal number of atoms of each type on both sides of the equation, which follows the principle of conservation of mass.

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What does it mean if an experiment is replicable ? Why is it important that experiment be replicable

Answers

Answer:

When an experiment is replicanle it means it is able to be done again.

Explanation:

It is important because You need to see if you get different results or if you messed up the first time

What is relativity exactly

Answers

the absence of standards of absolute and universal application.

Answer quickly plzzzz 100 pointsWhat are the two types of genetic molecules, contained in living things, that the bases formed from formamide make?

Nucleobases and Nitrogen

Hydrogen and Oxygen

DNA and ATGC

DNA and RNA

Answers

Answer:

hydrogen and oxygen

Explanation:

Answer:

DNA AND ATGC

Explanation:

SORRY IF ITS WRONG

What is the ansewer to compare and contrast i do not get it

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prescription meds are ones that the doctor gives you but otc meds are ones that you can buy from a pharmacy without a prescription. they are similar because they can both treat your illnesses and pretty much work the same way

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