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devlian [24]
3 years ago
6

Which of the following correctly represents an element?

Biology
1 answer:
natita [175]3 years ago
4 0

Answer:

Cu(Copper)

Explanation:

NaCl CO and H2O are compounds

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What is manual muscle testing and what can it be used to determine
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Answer:

It is a method of isometric muscle testing.

Explanation:

The manual muscle testing is used to determine the extension and degree of muscular weakness as a consequence of a disease, injury or disuse.

The results obtained from tests and exams provide a data planning base, so that the physician can plan a therapeutic procedure and periodic retesting for the patient.

The manual muscle testing requires no equipment other than the examiner's hands, it is highly portable  and inexpensive, however this type of testing provides muscle strength data at only one point of ROM.

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What is the function of the Articular cartilage.
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Brainliest pls? owo

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3 years ago
Luther Burbank bred potatoes that combined a variety of useful traits. One of Burbank's breeding techniques was hybridization. W
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Answer:

a disease-resistant plant crossed with a plant that produced a high volume of food

Explanation:

5 0
2 years ago
DNA and rna are both
skelet666 [1.2K]

Answer:

1/2 of an answer is zero answer.

Explanation:

The two main types of nucleic acids are DNA and RNA. Both DNA and RNA are made from nucleotides, each containing a five-carbon sugar backbone, a phosphate group, and a nitrogen base. DNA provides the code for the cell's activities, while RNA converts that code into proteins to carry out cellular functions.

6 0
3 years ago
In CaF2, the oxidation number of Ca is , and that of F is . In H2SO4, the oxidation number of H is , that of S is , and that of
Bess [88]

Answer:

1. The oxidation number of Ca is 2, F is -1 in CaF₂

2. The oxidation number of H is 2, S is 6, O is -8 in H₂SO₄

3. The oxidation number of Ca is 2, S is 6, O is -8 in CaSO₄

4. The oxidation number of H is 1, F is -1 in HF

Explanation:

To get the oxidation number, we need to take the oxidation number of the whole compound 0. Then we need to know the oxidation number of the other elements and we need to take 'x' as the oxidation number of the unknown element.

Example:

In case of CaSO₄,

We can write an equation as-

CaSO₄ = 0

If we need to know the oxidation number of S

We can write the equation like this-

→2+ x+ (-2*4) = 0 (as we know the oxidation number of Ca is 2 as it has two electrons in its last shell which it gives to other elements to form bonds and the oxidation number of O is -2 as it takes 2 electrons to complete its outer shell)

→2+ x+ (-8) = 0

→2+ x- 8 = 0

→x- 6 = 0

→x = 6; which is the oxidation number of S

                       

6 0
3 years ago
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