CHEMISTRY HIGH SCHOOL

A salt could be formed by an alkali metal and a(n)a. halogen.
b. metalloid.
c. transition metal.
d. alkaline-earth metal.

Answers

Answer 1
Answer:

Answer is (A) - halogen.


Salts are inorganic and ionic compounds which are made from two ions. One is cation which has a positive charge and other one is anion which carries a negative charge. The overall charge of the salt is zero means the salt is neutral.


Alkali metals form salts with halogens like F, Cl, Br, and I. Here,the cation is alkali metal and halogen is the anion.
Answer 2
Answer:

A salt could be formed by an alkali metal and a halogen. The answer is letter A. A halogen is example of nonmetal. The answer is letter A. When compounds containing halogens they are called salts thus the name “salt – former”. Halogen consists of Fluorine, Chlorine, Bromine, Iodine, Astatine.

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Answer:

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Explanation:

2Al + 6HCl → 2AlCl3 + 3H2 If 3.0 grams of H2 were produced, how many grams of Al reacted? (Molar mass of Al = 27 g/mol, molar mass of H2 = 2.0 g/mol) ___ grams

Answers

The 2AI + 6HCL = 2ALCL3 + 3H2. of the 3.0 gms of H2 are made.

  • The values derived from the grams of H2 in production can be used for finding the molar mass of AI of 27.
  • AI will react and make a 26.8 g of AI as molar mass consists of AI = 27 g / ml and the M of the H2 = 2.0g/ mol gms.
  • The calculated M of grams is 26.8 rounded to 3g figures.

Learn more about the 2AI + 6HCL = 2ALCL3 + 3H2.

brainly.com/question/14840695.

Answer:

its actually 26.8 rounded to three sig figs

Explanation:

ur welcome

What 2 tools do we use to measure volume?

Answers

Answer:

u

Explanation:
what are the answer choices? there are multiple tooks

When determining whether a chemical reaction has taken place you observe and look for several indicators. Which would be considered an indication that a chemical reaction or chemical change has taken place? es -) A) Solid melts. B) Heat is given off. Substance dissolves D) Substance changes shape. Physical Science​

Answers

Answer:

B) Heat is given off.

Explanation:

When heat is given off, a chemical change must have occurred and such a reaction is termed an exothermic reaction.

A chemical change is one in which;

  • the process is not easily reversible
  • leads to the production of new kinds of matter
  • involves change in mass
  • requires a considerable amount of energy.

Most chemical reactions are accompanied by heat changes.

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