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N76 [4]
3 years ago
13

Noble gases are... a. Very reactive, b.metals, c.radioactive, or d.unreactive

Chemistry
1 answer:
Andrews [41]3 years ago
4 0

Answer:

d. stable

Explanation:

Noble gases have 8 valence electrons which makes them the least reactive.

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Choose all the answers that apply MORE THAN ONE ANSWER. Salt is an ionic compound. It _____.
Anuta_ua [19.1K]

dissolves easily in water

has a high boiling point

has a high melting point

conducts electricity when melted

Explanation:

Salts are ionic compounds. Ionic compounds are formed when two atoms exchange their valence electrons. One atom gains and the other atom loses.

Generally, ionic compounds have the following properties:

  1. They are usually hard solids with high melting points or liquids with high boiling points.
  2. They are soluble in water and insoluble in non-polar solvents. This is conforms with the solubility rule that like dissolve like.
  3. In aqueous solution or molten form, ionic compounds conducts electricity.
  4. They take part in very fast chemical reactions.

Learn more:

Ionic compounds brainly.com/question/6071838

#learnwithBrainly

7 0
3 years ago
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HBr can be added to an alkene in the presence of peroxides (ROOR). What function does the peroxide serve in this reaction
RSB [31]

Answer:

Radical chain initiator

Explanation:

The peroxide here serves as a radical chain initiator. In the field of chemistry the radical initiatives are those substances that are used in industrial processes like polymer synthesis. These initiatives have weak bonds generally and they're mostly used to create free radicals. These radicals are atoms that have odd numbers of electrons. Peroxide is an example of such.

6 0
3 years ago
the diagram below represents two beakers, each containing an ice cube and clear liquid. in beaker A the ice cube floats, and in
Mama L [17]

Answer:

The density of the liquid in beaker B is less than the that of ice.

Explanation:

Ice will float if its mass is less than the mass of the liquid it displaces.

For example, the density of ice is less than that of water.

A 10 cm³ cube of ice has a mass of about 9 g, while the mass of 10 cm³ of water is 10 g. Thus, 9 g of ice displaces 10 g of water.

The denser water displaces the lighter ice and the ice floats to the top.

If the density of the liquid is <em>less than</em> that of water, say, 8 g/cm³, the ice will displace only 8 g of the liquid. The ice will sink.

4 0
3 years ago
How many phosphate bonds are responsible for the high energy content of ATP?
Nataly_w [17]
The answer is a. one. There are three phosphate bonds in the ATP but only the first bond is responsible for the high energy. When this bond break, ATP will change to ADP.
4 0
3 years ago
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Choose the answer below that gives the correct chemical symbol and classification (metal, metalloid, or nonmetal) for the elemen
Zielflug [23.3K]

Answer: B. The element called tin is a metal with the chemical symbol Sn.

Explanation:

A is incorrect because Ni is Nickel, not Niobium.

C is incorrect because Carbon is a nonmetal and its symbol is C, not Cr.

D is incorrect because Copper's symbol is Cu, not Ce.

E is incorrect because As is the symbol for Arsenic, not Astatine.

6 0
3 years ago
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