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Aloiza [94]
2 years ago
15

The number of protons plus the number of neutrons equal the ______

Chemistry
2 answers:
NARA [144]2 years ago
7 0
the answer is: Atomic number
Serga [27]2 years ago
4 0
Atomic weight I think this is right
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How many liters of carbon dioxide will 0.5 mole of lithium hydroxide (LiOH) absorb? (One mole of any gas occupies 22.4 L under c
Svet_ta [14]

Answer:

0.5 moles of LiOH will absorb 5.6 L of CO_2

Explanation:

According to law of conservation of mass, the sum of mass on the reactant side must be equal to the sum of mass on product side.

The balanced chemical equation is:

2LiOH+CO_2\rightarrow Li_2CO_3+H_2O

2 moles of LiOH absorb 1 mole of CO_2 i.e. 22.4 Liters at STP

0.5 moles of LiOH absorb

=\frac{22.4}{2}\times {0.5}=5.6Liters

0.5 moles of LiOH will absorb 5.6 L of CO_2

4 0
3 years ago
Which of the following describes the correct order for relative solubility of minerals in sedimentary rocks?
NARA [144]

Answer:

Evaporate minerals are more soluble than calcite and quartz.

Explanation:

Evaporate minerals are the water soluble minerals which at higher concentration precipitate out and crystallized forming rocks.

example of chemicals present are:

chlorides and sulphates.

Quartz is silica (very less soluble, or insoluble)

Calcite is calcium carbonate, again an insoluble salt.

Thus

Evaporate minerals are more soluble than calcite and quartz.

8 0
3 years ago
What are the disadvantages of synhetic rubber?
Tanzania [10]
Synthetic rubber also has shortcomings, the main drawback exists in its tensile effect is relatively poor, tear strength and mechanical properties are relatively poor
7 0
3 years ago
HELP PLLZZZ
Scorpion4ik [409]

Answer:

Abrasion

Explanation:

Here's an example, strong winds on a beach where some rocks are cause the sand to rub against the rocks, causing heat and eventually crack and destroy the rock. The ice of glaciers can also break down rocks when rocks are frozen inside it, and that's cooling.

8 0
3 years ago
Read 2 more answers
In which of these statements are protons, electrons, and neutrons correctly compared?
algol13
The statement that correctly compares protons, electrons, and neutrons is, "Quarks are present in protons and neutrons but not in electrons". Quarks are tiny particles which compose the neutrons and protons. These quarks in protons and neutrons are linked together by gluons. 
5 0
3 years ago
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