Which category does the ion PO43- belong to?

Chemistry

1 answer:

Katena32 [7]2 years ago

8 0

Answer:

c polyatomic anion

Explanation:

You might be interested in

What are some instantaneous speed examples in an everday life!

Ainat [17]

Answer:

If you ask for water and water immediately appears that very second, this is an example of something instantaneous.

3 0

2 years ago

Which of the following apply to gases. Select all that apply. Gas collisions are elastic. Gases mix faster than solids or liquid

marishachu [46]

Gas collisions are elastic. Gases mix faster than solids or liquids. Gases with larger molecular weights diffuse slower than gases with lower molecular weights.

5 0

3 years ago

Read 2 more answers

Convert the following: 100 hg(hectograms) to g(grams)

solniwko [45]

Answer:

Explanation:

10,000g

just multiply the amount of hectograms by 100 to get grams

4 0

3 years ago

Read 2 more answers

Helium is the lightest noble gas and the second most abundant element (after hydrogen) in the universe. The mass of a helium−4 a

dmitriy555 [2]

Answer: The fraction of atom's mass contributed by nucleus is 0.99

Explanation:

Nucleons are defined as the sub-atomic particles which are present in the nucleus of an atom. Nucleons are protons and neutrons.

The isotopic symbol of Helium-4 atom is $_2^4\textrm{He}$

Number of electrons = 2

Number of protons = 2

Number of neutrons = 4 - 2 = 2

We are given:

Mass of He-4 atom = $6.64648\times 10^{-24}g$

Mass of 1 electron = $9.10939\times 10^{-28}g$

Calculating the mass contributed by the nucleus = $m_{He}-2(m_e)$

Mass of the nucleus of He-4 atom = $6.64648\times 10^{-24}-(2\times (9.10939\times 10^{-28}))=(6.64648-0.0018219)\times 10^{-24}=6.64466\times 10^{-24}$