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Sauron [17]
3 years ago
14

What is the definition of a covalent bond?

Chemistry
2 answers:
valentinak56 [21]3 years ago
8 0
A covalent bond is the bond formed by the sharing of a pair of electrons by two atoms.

Your answer is D: A bond between two atoms.
koban [17]3 years ago
7 0
D. A bond between two atoms
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Explain how metallic bonding causes metals to conduct electricity?
astra-53 [7]
In a metallic bond, atoms of the metal are surrounded by a constantly moving "sea of electrons". This moving sea of electrons enables the metal to conduct electricity and move freely among the ions.
3 0
2 years ago
On a coordinate plane, which single transformation could map point A (3,-4) onto point A' (1.5,-2)? *
Ksenya-84 [330]

Answer: A dilation with rule: (x,y)\to(\dfrac12x,\dfrac12y)

Explanation:

A dilation is a non-rigid transformation that creates an image that is the same shape as the original but has a different size.

It uses a scale factor k such that

(x,y)\to(kx,ky)

(x,y)= coordinates of original figure

(kx,ky) = corresponding coordinate in the image.

To transform: A (3,-4) onto point A' (1.5,-2).

Using scale factor k= \dfrac12, we have

A(3,-4)\to A'(\dfrac12\times3, \dfrac12\times-4)=A'(1.5,-2)

Required rule: (x,y)\to(\dfrac12x,\dfrac12y)

3 0
2 years ago
In a second-order reaction (one that is second order in one reactant), cutting in half the concentration of that reactant will h
svlad2 [7]
A second order reaction varies with the square of the concentration of the reactant. Therefore, halving the concentration will reduce the rate of reaction by a factor of 4.
The answer is E.
4 0
3 years ago
Read 2 more answers
Picture this in your mind as you read it: You weigh an empty, clean, dry beaker on the balance (scale). It weighs 32.15 grams. Y
AleksAgata [21]

Answer:

2.25 g

Explanation:

The mass of the solid X must be the total mass (beaker + solid X) less than the mass of the beaker. Then:

mass of the solid X = 34.40 - 32.15

mass of the solid X = 2.25 g

The difference of 0.25 g must occur for several problems: an incorrect weight in the balance, the configuration of the balance, the solid can be hydrophilic and absorbs water, and others.

6 0
3 years ago
1 point
levacccp [35]

Answer:

A pure substance has a definite chemical composition

4 0
3 years ago
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