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Ratling [72]
3 years ago
14

PLZ GO TO MY PAGE ND ANSWER MY QUESTIONS BOUT CHEMISTRY DUE TMMR HELP ASAP

Chemistry
1 answer:
NemiM [27]3 years ago
8 0

Answer:

Sorry mujhe nahi aata...

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If the specific heat of water is 4.18 3/g*^ C much heat is required to increase the temperature of 12 g of water from 23 degrees
12345 [234]

Answer:

Q = 802.6 J

Explanation:

Given data:

Specific heat capacity of water = 4.18 J/g.°C

Mass of water = 12 g

Initial temperature = 23°C

Final temperature = 39°C

Heat required = ?

Solution:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 39°C - 23°C

ΔT = 16 °C

Q = 12 g× 4.18 J/g.°C × 16 °C

Q = 802.6 J

3 0
3 years ago
Which of the following must have a host to replicate
Amanda [17]
Answer: b) virus

explanation: viruses depend on the host cells that they infect to reproduce or “replicate”. though they can survive outside of a host, they cannot reproduce without a host.
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3 years ago
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Using the HH eq. calculate the amounts (masses) of sodium phosphate monobasic monohydrate (NaH2PO4 H2O) and sodium phosphate dib
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Drop out my dude whatever this is ain’t worth it
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3 years ago
Origin of name of aluminun
Alex73 [517]
From Latin word alumen, mean alum
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How many atoms of oxygen are in 4.00 moles of N2O5
SVETLANKA909090 [29]

Answer:

there are 20 oxygen atoms in 4.00 moles of Dinitrogen pentoxide

Explanation:

there are 2 atoms in an oxygen molecule , so each oxygen molecules has at least 2. Dinitrogen pentoxide is N2O5, which has 7 atoms, 2 nitrogen and 5 oxygen. 1 molecule of N2O5 has 5 oxygen atoms, so 4 of then would be 20

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3 years ago
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