All categories

3 years ago

Why is it important for scientists to review and repeat the work of other scientists

Chemistry

1 answer:

guapka [62]3 years ago

3 0

Answer:

Accuracy

Explanation:

It is important for scientists to review the work of other scientists, so they can be sure there are no mistakes or lack of judgement. They repeat to compare results to make hypotheses.

You might be interested in

Based on your understanding of how bond types influence a material’s properties, identify each of the following compounds as bei

siniylev [52]

Answer: The given compounds are identified as being made of ionic, covalent, or metallic bonds:

Steel - Metallic bonds
Propane - Covalent bonds
Calcium chloride - Ionic bonds
Water - Covalent bonds

Explanation:

A bond formed by transfer of electrons from one atom to another is called an ionic bond. An ionic bond is formed between a metal atom and a non-metal atom.

A bond formed by transfer of electrons from one atom to another is called a covalent bond. A covalent bond is formed between two or more non-metal atoms only.

Steel is actually an alloy of carbon and iron where there is less than 2% carbon, 1% manganese and small amounts of silicon, phosphorus, oxygen and sulphur are present.

When atoms of metals are held together then bond formed between these atoms is called metallic bond.

Hence, steel is made of metallic bond.

Chemical formula of propane is $CH_{3}CH_{2}CH_{3}$ as there are only non-metal atoms are present. So, sharing of electrons takes place in such atoms due to which covalent bonding will be there.

Hence, propane is made up of covalent bonds.

Calcium chloride contains a metal and a non-metal atom. This means that electrons are being transferred from calcium atom to the chlorine atom. Hence, bond present in calcium chloride is ionic bond.

Water has chemical formula $H_{2}O$ . Since, non-metal atoms are present there so sharing of electrons takes place between hydrogen and oxygen atoms. Hence, covalent bond is present in water.

Thus, we can conclude that given compounds are identified as being made of ionic, covalent, or metallic bonds:

Steel - Metallic bonds
Propane - Covalent bonds
Calcium chloride - Ionic bonds
Water - Covalent bonds

7 0

3 years ago

How many liters are in 555 g of O2

victus00 [196]

Answer:

388.5

Explanation:

$\frac{555}{32} = 17.34375 \\ 17.34375 \times 22.4 = 388.5$

3 0

3 years ago

Enter the condensed electron configuration for cu4+.express your answer in condensed form, in order of increasing orbital energy

Marysya12 [62]

Electronic Configuration of Cu⁴⁺ is written using these two steps;

Step I:
Write the Electronic Configuration of Copper (Cu).

As Atomic Number of Cu = 29
So,
1s², 2s², 2p⁶, 3s², 3p⁶, 3d¹⁰, 4s¹

Rearranging it in order of increasing orbital energy,

1s², 2s², 2p⁶, 3s², 3p⁶, 4s¹, 3d¹⁰
Or,
Cu = [Ar] 4s¹, 3d¹⁰

Step II:
Now, the Cu⁴⁺ ion has lost 4 electrons, So one electron from 4s and 3 electrons from 3d orbital are removed, The resulting electronic configuration becomes,
Cu⁴⁺ = [Ar] 3d⁷

3 0

4 years ago

Read 2 more answers

Which of the following statements is FALSE?

Jobisdone [24]

Answer:

Option C is false statement. The half life of a second order reaction is not dependent on concentration.

Explanation:

Half life of a reaction is defined as the amount of time which is required for a reactant concentration reduced by half comparison to its initial concentration.

Half life of a second order reaction is depend on the initial concentration of a reaction, in contrast to 1st order reaction.

7 0

3 years ago

Which transfer of heat is depicted in the figure?

Eddi Din [679]

Answer:

Oh it is convention

Explanation:

because the heat transfer is through fluids

8 0

3 years ago