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2 years ago

How many plague hearts can be in one map at a time state of decay 2?

Chemistry

1 answer:

disa [49]2 years ago

6 0

Answer : 10 plague hearts are there in one map at a time in state of decay 2

Explanation : The State of Decay 2 consists of 10 Plague Hearts which one needs to destroy and they are placed on randomly dotted areas around the map inside a searchable location on it.

With each heart that one destroys, the remaining other ones become a little bit tougher and are more heavily guarded by the undead people.

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When the reactive alkali metal sodium is reacted with poisonous chlorine gas, sodium chloride or table salt is produced. Is mass

PIT_PIT [208]

Answer:

Yes, Mass is conserved.

Explanation:

Every chemical reactions obey the law of conservation of mass. The law of conservation of mass states that in chemical reactions, mass is always constant.

Equation:

2Na + Cl₂ → 2NaCl

From the equation above, one can observe that the reaction started using 2 atoms of Na and it produced 2 atoms of the same element in NaCl. A molecule of Cl produced 2 atoms of Cl in the NaCl

Design a simple experiment to support your answer:

Aim: To demonstrate the law of conservation of mass

One Na atom weighs 23g

Two Na atom will weigh 2 x 23 = 46g

1 atom of Cl is 35.5g

1 molecule of Cl containing two atoms of Cl will weigh 2 x 35.5 = 71g

Total mass of reactants = mass of 2Na + 1Cl₂ = (46 + 71)g = 117g

On the product side, Mass of 1 NaCl = 23+ 35.5 = 58.5g

Two moles of NaCl will give 2 x 58.5g = 117g

Since the mass on both side is the same, one can say mass is conserved.

7 0

2 years ago

Which of these statements best describes how an increase in the amount of Sun’s heat reflected by the Earth’s surface and atmosp

Korolek [52]

If the Suns heat is being reflected, then it is making the Earth cooler.

7 0

3 years ago

Explain the process of filtration and crystallization

Akimi4 [234]

Answer:

Filtration, the process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium that permits the fluid to pass through but retains the solid particles. Either the clarified fluid or the solid particles removed from the fluid may be the desired product.

Crystallization, or crystallisation, is the process of atoms or molecules arranging into a well-defined, rigid crystal lattice in order to minimize their energetic state. The smallest entity of crystal lattice is called a unit cell, which can accept atoms or molecules to grow a macroscopic

crystal.

BRAINLIEST PLEASE, I NEED IT

8 0

3 years ago

The volume of a bubble that starts at the bottom of a lake at 4.55°C increases by a factor of 8.00 as it rises to the surface wh

Masja [62]

Answer:

The depth of the lake is 67.164 meters.

Explanation:

The combined gas equation is,

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

$P_1$ = initial pressure of gas in bubble= ?

$P_2$ = final pressure of gas = 0.980 atm

$V_1$ = initial volume of gas = $V$

$V_2$ = final volume of gas = 8.00 × V

$T_1$ = initial temperature of gas = $4.55^oC=273.15+4.55=277.7 K$

$T_2$ = final temperature of gas = $18.05^oC=273.15+18.05=291.2 K$

Now put all the given values in the above equation, we get:

$\frac{P_1\times V}{277.7 K}=\frac{0.980 atm\times 8.00\times V}{291.2 K}$

$P_1=7.476 atm$

pressure of the gas in bubble initially is equal to the sum of final pressure and pressure exerted by water at depth h.

$P_1=P_2+h\rho\times g$

Where :

$\rho =$ density of water = $1.00 g /cm^3=1000 g/m^3$

g = acceleration due gravity = $9.8 m/s^2$

$7.476 atm=0.980 atm +h\rho\times g$

$6.496 atm=h\rho\times g$

$6.496 \times 101325 Pa=h\1000 g/m^3\times 9.8 m/s^2$

h = 67.164 m

The depth of the lake is 67.164 meters.

4 0

3 years ago

The ph of a 0.15 m aqueous solution of naz (the sodium salt of hz) is 10.7. what is the ka for hz?

andrew-mc [135]

Answer:
NaZ + H2O <----> HZ + OH-
[OH-] = [HZ]
[NaZ] = 0.15 M
pH = 10.7, so the pOH = 14-10.7 = 3.3; [OH-] = 10^-3.3 = 5.01E-4
kb = [OH-][HZ]/[NaZ] = (5.01E-4)^2/0.15 = 1.67E-6
ka = kw/kb = 1E-14/1.67E-6 = 5.99E-9 = 6.0E-9

5 0

3 years ago