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Alexxx [7]
3 years ago
13

What product is formed when a group 1 metal reacts with a halogen?

Chemistry
1 answer:
Vesnalui [34]3 years ago
8 0

Answer:

When and alkali metal reacts with a halogen the product is a binary salt.

Explanation:

Examples

               NaF             sodium fluoride

               KCl              potassium chloride

               KBr              potassium bromide

They are binary salts because are composed only by two elements (a metal and a halogen)

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What chemical change causes cake to rise?
maks197457 [2]

Answer:

Sodium bicarbonate (NaHCO3)

Explanation:

which is also called baking soda is added during baking of a cake. It reacts with water that is added in the dough and produces carbon dioxide gas, which expands on heating and makes the cake fluffy. Thus, this is a chemical change that causes cake to rise.

3 0
3 years ago
4) If a person is riding a bike and want to slow down, they use the brakes. This is an example of which of the following?
Vlad1618 [11]

Answer: C A B

Explanation:

4 0
3 years ago
Read the given expression. X = number of protons − number of core electrons Which of the following explains the identity of X an
shepuryov [24]

<u>Answer: </u>The correct statement is X is the effective nuclear charge, and it increases across a period.

<u>Explanation:</u>

We are given that:

X = number of protons − number of core electrons

Effective nuclear charge is defined as the actual nuclear charge (Z = number of protons) minus the screening effect caused by the electrons present between nucleus and valence electrons. These electrons are the core electrons.

The formula used for the calculation of effective nuclear charge given by Slater is:

Z^*=Z-\sigma

where,

Z^* = effective nuclear charge

Z = atomic number or actual nuclear charge or number of protons

\sigma = Screening constant

The effective nuclear charge increases as we go from left to right in a period because nuclear charge increases with no effective increase in screening constant.

Hence, the correct answer is X is the effective nuclear charge, and it increases across a period.

5 0
3 years ago
Is particle size one of the factors that affect solubility? How?
Over [174]
Hello!

The reduction in particle size results in an increased rate of solution. It occur because is harder for a a solvent to surround bigger molecules.

Hugs!
4 0
3 years ago
write a short paragraph (3-4 sentences) explaining what makes Metallic bonding. Make sure to include how the electrons interact,
bonufazy [111]

Answer:

Metallic bonding may be described as the sharing of free electrons among a lattice of positively charged metal ions. The structure of metallic bonds is very different from that of covalent and ionic bonds. While ionic bonds join metals to nonmetals, and covalent bonds join nonmetals to nonmetals, metallic bonds are responsible for the bonding between metal atoms.

In metallic bonds, the valence electrons from the s and p orbitals of the interacting metal atoms delocalize. That is to say, instead of orbiting their respective metal atoms, they form a “sea” of electrons that surrounds the positively charged atomic nuclei of the interacting metal ions. The electrons then move freely throughout the space between the atomic nuclei.

Explanation:

7 0
3 years ago
Read 2 more answers
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