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Taya2010 [7]
3 years ago
11

Which of the following is not capable of reacting with molecular oxygen?

Chemistry
1 answer:
fredd [130]3 years ago
6 0
I think letter b were you put the letters so
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...............………...mkmlkml;m
bagirrra123 [75]

Answer:

390

Explanation:

Specific heat capacity= heat/mass × temperature

x = 2925 \div 0.5 \times 15 = 390

Remember you convert gram into kilogram and 1 gram =0.001 kilogram

5 0
3 years ago
Thermal energy always moves from a greater energy level to a lesser energy level
Nookie1986 [14]

Answer:

\fbox{Law -Based \: on \: laws \: of \: thermodynamic}

Explanation:

At constant pressure Thermal energy always moves from a greater energy level to a lesser energy level, laws of thermodynamics prove that.

Nature always likes to attain equilibrium either it's movement of heat energy or flow of water from higher region to lower region. The first and second law of thermodynamics are profe of that, the first law says that the total energy of universe is Constant. Energy can not be destroyed it always changes from one form to another, by work and heat. The second law explains why thermal energy moves from a greater energy level to a lesser energy level, it deals with the change in entropy of a system and surrounding and states heat flows from hot environment to cold environment.

<em><u>Thanks for joining brainly community!</u></em>

6 0
3 years ago
How many moles of water are in a beaker with 50 mL?
tatiyna

Answer:

Number of moles = 2.8 mol

Explanation:

Given data:

Number of moles of water = ?

Volume of water = 50 mL

Density of water = 1.00 g/cm³

Solution:

1 cm³ =  1 mL

Density = mass/ volume

1.00 g/mL = mass/ 50 mL

Mass = 1.00 g/mL× 50 mL

Mass = 50 g

Number of moles of water:

Number of moles = mass/molar mass

Number of moles = 50 g / 18 g/mol

Number of moles = 2.8 mol

5 0
3 years ago
Differentiata between speed, velocity, and acceleration
stepan [7]

Answer:

Explanation:

Speed is distance covered per unit time.it is a scaler quantity. It unit is m/s.

Velocity is speed in a given direction.it is a vector quantity. It unit is m/s.

Acceleration is the rate of increase in velocity.it is a vector quantity.it unit is m/s^2

8 0
3 years ago
Esign Techniques And Materials That Reduce The Negative Environmental Impact Of A Structure Are Referred To As
Vinvika [58]

Green design (or in chemistry green chemistry)

4 0
4 years ago
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