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Veseljchak [2.6K]
3 years ago
11

Which statement is correct concerning the subatomic particles found in an atom?

Chemistry
2 answers:
NNADVOKAT [17]3 years ago
4 0
It’s D hope this helps
Mnenie [13.5K]3 years ago
3 0

Answer:

It is D!! Just did this.

Explanation:

Hope this helps :)

You might be interested in
One liter of ocean water contains 35.06 g of salt. What volume of ocean water would contain 1.00 kg of salt? Express your answer
sweet [91]

Answer:

28.52 L

Explanation:

First, let's calculate the density of the ocean, which is the mass divided by the volume:

d = m/V

d = 35.06/1

d = 35.06 g/L

So, for a mass of 1.00 kg = 1000.00 g

d = m/V

35.06 = 1000.00/V

V = 1000.00/35.06

V = 28.52 L

How all the data are expressed with two significant figures, the volume must also be expressed with two.

7 0
4 years ago
How do the alkali metals differ from the alkaline earth metals?
Alik [6]

Answer & Explanation:

  • The alkali metals are the elements found in the first group of the periodic table.
  • Alkaline earth metals are found in the second group of the periodic table.
  • Alkali metals are Lithium (Li), sodium(Na), potassium (K), Rubidium (Rb), Cesium (Cs) and Francium (Fr).
  • Alkaline earth metals include; Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba) and Radium (Ra).
  • Alkali metals are very reactive and none of these metals do not occur as free metals in nature.
  • Alkaline metals are also do not occur freely in nature and they are also very reactive.
  • For alkali elements, the densities of Lithium and Sodium are less than the density of water. However, the other elements are denser than water. Many of alkali metal compounds (NaCl, KCl, Na2, CO3, NaOH) are commercially very important.
  • Alkaline elements in this group are denser than water.
7 0
3 years ago
What is the correct equation for k?
nordsb [41]
U have to show what k is
8 0
4 years ago
In the reaction of magnesium with oxygen, explain which atom is the reducing agent.
Mnenie [13.5K]

Answer:

Mg.

Explanation:

  • The oxidation-reduction reaction contains a reductant and an oxidant (oxidizing agent).
  • An oxidizing agent, or oxidant, gains electrons and is reduced in a chemical reaction. Also known as the electron acceptor, the oxidizing agent is normally in one of its higher possible oxidation states because it will gain electrons and be reduced.
  • A reducing agent (also called a reductant or reducer) is an element (such as calcium) or compound that loses (or "donates") an electron to another chemical species in a redox chemical reaction.
  • For the reaction:

<em>Mg + 1/2O₂ → MgO.</em>

<em></em>

Mg is oxidized to Mg²⁺ in (MgO) (loses 2 electrons). "reducing agent".

O is reduced to O²⁻ in (MgO) (gains 2 electrons). "oxidizing agent".

5 0
3 years ago
A solution is made by adding 200 g table salt to 1
pochemuha

We say that the solution is unsaturated.

Explanation:

If the salt solubility is 36 g in 0.1 L of water then we can dissolve 360 g of salt in 1 L of water.

Because the solution contains 200 g of salt in 1 L of water, the solution is unsaturated because more salt can be added until we reach the saturation point.

We call the solution dilute when we compare the concentration of a solution with the concentration of another solution, but here we do not compare different solutions.

Learn more about:

solubility

brainly.com/question/9126711

#learnwithBrainly

7 0
4 years ago
Read 2 more answers
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