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ValentinkaMS [17]
3 years ago
6

Moseley made revisions to the periodic table that resolved some of the problems with Mendeleev’s version. Which of these was a r

esult of his revisions to the periodic table?
Chemistry
2 answers:
JulsSmile [24]3 years ago
7 0

Answer:

a. the revised periodic table could account for the discovery of new elements

Explanation:

i just did on edgen2020

sveticcg [70]3 years ago
3 0
Thanks to Moseley's revision, the importance of the atomic number was acknowledged and it explained why some elements seemed to be out of their place, even though they were actually not.
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Sholpan [36]

Answer:

The two substances are Grease and Oil.

Explanation:

- <u>Grease</u> is used for other lubrication outside of the engine when it is really cold.

- <u>Oil</u> is used for lubricating when your engine is really hot.

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3 years ago
Which process is constructive?
dalvyx [7]
C.
It is the only thing that is making a new thing, and not breaking or taking apart something that is already there.
4 0
3 years ago
Name the compounds( Please answer only if you know)
IRISSAK [1]

Answer

2-methyl-2-pentene

Explanation:

1. Identify the group that takes precedence in this case alkene hence this molecule is an alkene with a methyl group side chain.

2.Find the longest carbon chain where the functional group(alkene group in this case) has the lowest Carbon number

3.What are the side groups? One side group can be seen at carbon 2 this group is methyl

4. Naming, number separated by "," and number from letters by "-" so the compound should be

2-methyl-2-pentene

8 0
3 years ago
A 40 g sample of water absorbs 500 calories of energy, how much did the water temp changed?​
Dafna1 [17]

2.99 °C is the change in temperature if a 40 g sample of water absorbs 500 calories of energy.

<h3>What is specific heat capacity?</h3>

The specific heat capacity is defined as the quantity of heat (J) absorbed per unit mass (kg) of the material when its temperature increases 1 K (or 1 °C), and its units are J/(kg K) or J/(kg °C).

Given data:

m = 40 g

Q = 500 J

Specific heat capacity of water = 4.18 J/g°C

Change in Temperature =?

The formula for Heat Energy is given by:

Q = mcp∆T

where: Q - Heat Energy

m - mass

cp - specific heat

∆T = change in temperature, T_2 - T_1

Solution:

Substituting the value of m, specific heat capacity of water and Q in the formula,

500 J = (40 g)(4.18 J/g°C)(∆T)

∆T = 2.99 °C

Learn more about the specific heat capacity here:

https://brainly.ph/question/7099790

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4 0
2 years ago
Which two chemists organized elements based on properties such as how the elements react or whether they are solid or liquid?
nataly862011 [7]

Answer:

Dmitri Mendeleev and Henry Moseley developed their periodic tables about forty years apart. During that time, many discoveries in chemistry were made.

7 0
4 years ago
Read 2 more answers
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