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Assoli18 [71]
3 years ago
9

Dalton's atomic theory includes which idea?

Chemistry
1 answer:
Lady bird [3.3K]3 years ago
6 0
A. All atoms of all elements are the same size. B. Atoms of different<span> elements always combine in one-one ratios. C. Atoms of the same element are always</span>identical<span>. Which of the following was originally a part of Dalton's atomic theory, but had to be revised about a century ago?</span>
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When a pair of electrons is shared equally between two atoms, the bond formed is called a(n):?
zvonat [6]
Answer: When a pair of electrons is shared equally between two atoms, the bond formed is called a: pure covalent bond.

I have used the word pure to enphatize that the pair of electrons is shared equally. Some, bonds share the electrons unequally, yet they are covalent but they are polar. When the pair is shared equally the bond is purely covalent.

Also, you must know that covalent bonds may be single (one pair of electrons is shared), double (two pair of electrons are shared) or triple (three pair of electrons are shared).
8 0
4 years ago
How are all paths that have displacement of zero similar ​
levacccp [35]

Answer:

Any situation that has a path that stops at the same position that it started from has a displacement of zero.

Explanation:

6 0
3 years ago
Humans have cut and frayed the woven tapestry of Earth’s biodiversity. Choose 2 of the 3 intertwined systems mentioned in the fi
Flura [38]
The answer is GENETIC DIVERSITY and SPECIES DIVERSITY
8 0
3 years ago
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Begin by writing formulas for the reactants and products, including physical states. When necessary use coefficients to balance
xz_007 [3.2K]

Answer:

NaH(s) + H2O(l) ------> NaOH(aq) + H2(g)

2Al(s) + 3Cl2(g) -----> 2AlCl3(s)

Explanation:

The rule of thumb in balancing chemical reaction equation is that the number of atoms of each element on the reactant side must be the same as the number of atoms of the same element on the product side. Only then can any reaction equation be seen as balanced.

For example there are two aluminum atoms on both sides of the reaction equation and six chlorine atoms on both sides of the reaction equation. Hence the reaction equation is balanced.

7 0
3 years ago
What is the composition and structure of ionic compounds​
kvv77 [185]

Answer:

Sodium and chlorine ions come together to form sodium chloride or NaCl. The sodium atom in this compound loses an electron to become Na+, while the chlorine atom gains an electron to become Cl-. Together, they form a neutral compound because the ions balance each other out.

Explanation:

6 0
3 years ago
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