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DIA [1.3K]
3 years ago
15

Mendeleev’s table of elements was better accepted than those of other scientists at the time because _______________ . Moseley w

ent a step further in suggesting that the elements be arranged according to________________ .
Chemistry
2 answers:
disa [49]3 years ago
8 0

Answer:Answer: Mendeleev's table of elements was better accepted than those of other scientists at the time because it predicted correctly the properties of elements that had not yet been discovered. Moseley went a step further in suggesting that the elements be arranged according to atomic number

Explanation:

Dmitrij [34]3 years ago
5 0

Answer:

Mendeleev’s table of elements was better accepted than those of other scientists at the time because he discovered the elements that had not yet been discovered. Moseley went a step further in suggesting that the elements be arranged according to atomic number

Atomic number

Explanation:

He arranged the elements based in groups.

He left spaces for the elements yet to be discovered. His assumptions were true as the elements were actually discovered later on

The properties of such elements were also well matched as based on their position in the periodic table.

He corrected some of the incorrect masses predicted by then.

The modern periodic table is based on periodic trend on atomic number.

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Protium - the most common isotope of hydrogen - has no neutrons in its nucleus.
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3 years ago
This is the measure of the quantity of matter
Akimi4 [234]

Answer : Mass

Explanation : Mass measures the amount of matter in a substance or an object.

3 0
3 years ago
Read 2 more answers
If you mix 4.5 g of hcl in enough water to make 0.9 l (900 ml of solution, what is the molarity of the solution?
Elina [12.6K]
We first need to convert grams of hydrogen chloride to moles.

molarity = moles of solute/liters of solution

To convert from grams to moles, we need to divide by it's molecular mass.

4.5 g HCl * (1 mole HCl/ 36.46 g HCl) = 0.123 moles HCl

0.12 moles/0.9 L = 0.13 M HCl

If they gave you the volume as 900 mL, then that would be 3 sig figs. And the sig figs would be limited to 2 because the mass.If, however, they gave you the volume as 0.9 L, then that would be 1 sig fig. And the final answer would be limited to to 1 sig fig.
4 0
3 years ago
New nuclei and neutrons result from:
svet-max [94.6K]
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3 0
2 years ago
In a plant, 1500kg of nitrogen oxide is consumed per day to produce 1,500 kg of nitrogen per day. What is the prevent yield?
slavikrds [6]

Answer:

65.21 percent

Explanation:

We are to find the percentage yield

We have this equation,

2no+o2 -->2no2

Such that 1500 kilograms/30grams

= Mno2/46

=1500/30 = mno2/46

We cross multiply from here

1500x46 = 30xMnO2

69000 = 30Mno2

69000/30 = MnO2

2300 = Mno2

The percentage yield would be

1500/2300 *100

= 0.6521 x 100

= 65.21%

This answers the question

5 0
2 years ago
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