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Anastaziya [24]
4 years ago
14

Which of these is a physical property?

Chemistry
2 answers:
vovikov84 [41]4 years ago
3 0
I THINK the answer is D
Lemur [1.5K]4 years ago
3 0
The answer is D because it also means melting point which is a physical property:)
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An atom has 40 electrons and 46 neutrons. how many protons does it have?
ludmilkaskok [199]
Atoms have equal numbers of protons and electrons. So it have 40 protons.
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4 years ago
HELP! me please help with this science assignment
Elina [12.6K]
I’m not sure about the rest but 4 is families
7 0
3 years ago
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1. given 5 mols of the compound below what is the mol ratio between the compound and O? Ca_4Si_2O_6(CO_3)(OH)_2
Gre4nikov [31]

The mole ratio of the compound and its constituent elements are as follows:

  1. The mole ratio between the compound and O is 5 : 22
  2. The mole ratio between the compound and Si is 2 : 4
  3. The mole ratio between the compound and Ca is 5 : 20
  4. The mole ratio between the compound and C is  1 : 1

<h3>What is mole ratio?</h3>

Mole ratio is the ratio of the moles of one or more elements or compounds to another.

The given compound is Ca₄Si₂O₆(CO₃)(OH)₂

Moles of oxygen present in 1 mole of compound = 11 moles

Moles of Si present in 1 mole of compound = 2 moles

Moles of Ca present in 1 mole of compound = 4 moles

Moles of C present in 1 mole of compound = 1 mole

  1. Given 5 moles of the compound below, the mole ratio between the compound and O is 5 : 22
  2. Given 2 moles of the compound below, the mole ratio between the compound and Si is 2 : 4
  3. Given 5 moles of the compound below, the mole ratio between the compound and Ca is 5 : 20
  4. Given 3.5 moles of the compound below, the mole ratio between the compound and C is  1 : 1

Given the equation of the reaction below;

  • Pb(NO₃)₂ (aq) + 2 KI (aq) --> PbI₂ (s) + 2 KNO₃ (aq)

the mole ratio of the reactants and products are as follows:

  • Pb(NO₃)₂ : 2 KI (aq) = 1 : 2
  • Pb(NO₃)₂ : PbI₂ (s0 = 1 : 1
  • Pb(NO₃)₂ : 2 KNO₃ (aq) = 1 : 2

In conclusion, the mole ratio of reaction is the ratio in which moles of the substances combine.

Learn more about mole ratio at: brainly.com/question/19099163

#SPJ1

4 0
2 years ago
When you dissolve salt in hot water, the salt is referred to as the
Andreas93 [3]

Answer:

Solute

Explanation:

The salt is the substance that dissolves in hot water (solute)

6 0
3 years ago
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Can you help me with this question
lawyer [7]

Osmosis is the diffusion of water from a high concentration to a lower concentration

8 0
3 years ago
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