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Anni [7]
3 years ago
14

What did Dalton determine about the relationship between atoms, elements, and compounds?

Chemistry
2 answers:
RideAnS [48]3 years ago
7 0

Answer: got on xbox

Explanation:

kirill115 [55]3 years ago
6 0

Answer:

Usman I’m trolling you right know

Explanation:

Get on xbox

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The diagram below is an artist’s impression of a single atom of element Be. The neutrons are shown with stripes, the protons are
Ahat [919]

Answer is: beryllium-10.

The diagram shows that atom has 4 protons, 5 neutrons and 2 valence electrons.

Atomic number is the number of protons, which is characteristic of a chemical element, beryllium (Be) is an element with atomic number 4.

Two valence electrons means that atom is from 2. group of periodic table, only beryllium is from that group; sodium (1. group), boron (13. group) and carbon (14. group).

Beryllium-10 has 6 neutrons, so it is isotope (different number of neutrons or mass number).

3 0
3 years ago
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How many atoms are present in the following compound?<br> C21H22N2O2
alisha [4.7K]
Acetic Acid has two C atoms, four H atoms, and two O atoms, so the molecular formula is C2H4O2.
6 0
3 years ago
Identify 3 physical changes that could occur with a sheet of paper
VladimirAG [237]

Answer:

  • 1. Dimensions: The sheet can be cut into several smaller pieces.

  • 2. Shape: the sheet can be formed into a paper ball or any other shape (using origami for example).

  • 3. Color: You can use crayons to paint the sheet and change its color.

Explanation:

<em>Physical changes</em> do not change the chemical properties. They do not transform the compounds that form the substances. They do not break and or form chemical bonds.

When you change the form, the state (solid, liquid or gas), the color, you are just changing physical properties.

Only chemical changes change the compounds that form the substance. For instance, if you burn the <em>sheet of paper</em>, then you are causing a chemical change because the organic matter in the paper will react with oxygen forming CO₂ and water, but by cutting, folding, smashing, or coloring with crayons, the compounds in the<em> sheet of paper</em> do not change.

6 0
3 years ago
Please help with questions 14-17 ! and thanks<br> - will mark you brainliest
KiRa [710]

Answer: 14 :12 water molecules,  

Explanation: 17: 6 molecules

8 0
3 years ago
What coefficient values will balance the reaction shown? CS2 + Cl2? CCl4 + S2Cl2 A. 1,1,1,1 B. 1,3,1,1 C. 2,1,1,1 D. 1,2,1,2
Talja [164]
The answer is B. 1,3,1,1.

Brady
5 0
3 years ago
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