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KonstantinChe [14]
2 years ago
12

Phagocytic cells perform their function by

Chemistry
1 answer:
pav-90 [236]2 years ago
4 0
Hmph..function<span> of</span>phagocytosis<span> in the immune system is to ingest and destroy pathogens like viruses, bacteria and infected </span>cells<span>..

Love, grace..-
</span>
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What is the change in internal energy (ΔΕ) of a system when 5 kJ of work is done on the system while it releases 13 kJ of energy
meriva

The change in internal energy (ΔΕ) of a system : -8 kJ

<h3>Further explanation  </h3>

The laws of thermodynamics 1 state that: energy can be changed but cannot be destroyed or created  

The equation is:  

 \tt \Delta U=Q+W

Energy owned by the system is expressed as internal energy (U)  

This internal energy can change if it absorbs heat Q (U> 0), or releases heat (U <0). Or the internal energy can change if the system does work or accepts work (W)  

The sign rules for heat and work are set as follows:  

• The system receives heat, Q +  

• The system releases heat, Q -  

• The system does work, W -  

• the system accepts work, W +  

5 kJ of work is done on the system : W = +5 kJ

releases 13 kJ of energy to the surroundings : Q = -13 kJ

\tt \Delta E=-13+5=-8~kJ

6 0
2 years ago
What occurs in order to break the bond in a Cl2 molecule?
alukav5142 [94]
The bond between the 2 Cl atoms in a Cl₂ molecule is a covalent bond. 
to break this covalent bond, energy is required. 
when new bonds form, energy is released as the bond formation makes the molecule stable. molecules with low energy levels are usually stable. 
To break the covalent bond, energy is required in other words energy is absorbed. 
therefore to break the covalent bond in Cl₂ molecule 
1)energy is absorbed
3 0
3 years ago
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A 5.0 milliliter sample of a substance has a mass of 12.5 grams. What is the mass of a 100 milliliter sample of the same substan
exis [7]

Answer:

It sould be 250 grams

Explanation:

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2 years ago
how much water should be added to 1 gallon of pure antifreeze to obtain a solution that is 60% antifreeze?
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1 gallon of antifreeze = 60% of mixture. Total mixture:
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Volume of water = total vol - antifreeze vol
= 1.67 - 1
= 0.67 gallon of water
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3 years ago
Three factors! that affect the solubility of a substance are pressure, the type of solvent, and volume.
lozanna [386]

Answer: yes even temperature too in rarely case

7 0
3 years ago
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