"In a test tube was add a piece of Zn and 2 mL of HCl (.1M). This reaction produced ZnCl2 and Hydrogen gas. This reactions is a:

Chemistry

1 answer:

omeli [17]3 years ago

4 0

Answer:

d. A single replacement reaction.

Explanation:

The zinc replaces the hydrogen in the hydrochloric acid.

You might be interested in

A popular kitchen appliance

Elenna [48]

Toaster, microwave, coffee makers

6 0

3 years ago

Which statement about the atomic nucleus is correct

Sladkaya [172]

The nucleus is made of protons and neutrons. It has a positive charge.

8 0

2 years ago

The activity of tocopherols is destroyed by

NikAS [45]

<span>A. Commercial cooking
</span>

3 0

2 years ago

When sugar is dissolved in hot tea, physical changes occur. Write two physical properties of sugar

kompoz [17]

Answer:

When you mix the sugar into the tea and stir, it dissolves so you can't see it. Also when you stir the sugar into the tea the taste changes and it turns sweeter.

6 0

2 years ago

The last element in any period always has:

brilliants [131]

Answer: The correct option is The properties of a noble gas.

Explanation: There are 7 periods in the periodic table.

The last element of each period are Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn) and Ununoctium (Uuo).

The electronic configuration for Helium is $1s^2$ . For He, The outermost electrons are 2.

The electronic configuration for all the other elements is $ns^2ns^6$ ( where, n = 2, 3, 4, 5, 6 and 7 respectively). For all the other gases, the outermost electrons are 8.

All these elements have stable electronic configuration and are not reactive in nature. Hence, they are considered as noble gases.

Therefore, the last element of each period always have the properties of a noble gas.

4 0

3 years ago

Read 2 more answers