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3 years ago

What is the popular use of lithium batteries

Chemistry

1 answer:

AVprozaik [17]3 years ago

6 0

Answer:

Lithium batteries are well-known for powering our phones and the latest lightweight laptop computers.

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Would your work in cleaning the beach be considered physical or a chemical change to the environment? Explain your reasoning.

gregori [183]

Physical because it can easily turn back into the original "substance"

6 0

4 years ago

A gas has an initial volume of 168 cm3 at a temperature of 255 K and a pressure of 1.6 atm. The pressure of the gas decreases to

katen-ka-za [31]

I wrote the answer on this paper and here is the calculations step by step

very sry the "V" must be replaced with 285 and the 285 must be replaced with "V" and the answer is 231.09 cm3. sorry for the inconvenience.

6 0

3 years ago

Read 2 more answers

2.61 kilograms of water in a container have a pressure of 200 kPa and temperature of 200°C . What is the volume of this containe

Arisa [49]

<u>Answer:</u> The volume of the container is $2.8497m^3$

<u>Explanation:</u>

To calculate the volume of water, we use the equation given by ideal gas, which is:

$PV=nRT$

or,

$PV=\frac{m}{M}RT$

where,

P = pressure of container = 200 kPa

V = volume of container = ? L

m = Given mass of water = 2.61 kg = 2610 g (Conversion factor: 1kg = 1000 g)

M = Molar mass of water = 18 g/mol

R = Gas constant = $8.31\text{L kPa }mol^{-1}K^{-1}$

T = temperature of container = $200^oC=[200+273]K=473K$

Putting values in above equation, we get:

$200kPa\times V=\frac{2610g}{18g/mol}\times 8.31\text{L kPa }\times 473K\\\\V=2849.7L$

Converting this into cubic meter, we use the conversion factor:

$1m^3=1000L$

So, $\Rightarrow \frac{1m^3}{1000L}\times 2849.7L$

$\Rightarrow 2.8497m^3$

Hence, the volume of the container is $2.8497m^3$

6 0

3 years ago

I really need help with this.

suter [353]

The answer to question 8 is
Ethanol's Molar Heat of Combustion. ... Heats of combustion are quoted as positive numbers while the enthalpy changes of combustion reactions (ΔH) are quoted as negative numbers, as combustion reactions are always exothermic. Heats of combustion are typically stated in kilojoules per mole (kJ/mol. or kJ mol. -1).
can u mark me the brainliest

7 0

3 years ago

What is the molecular formula of a hydrocarbon with M+ = 108? (Write the formula with no subscripts, e.g. C4H10.)

Sidana [21]

Explanation:

M+=108 is way of representing molecular formula of a compound indicating simple numbers of each type of atom in a molecule and there is no information about the structure.

Here it given the molecule is hydrocarbon with 8 carbon atom and 12 hydrogen atom. Thus the compound is C8H12.

C8H12 has one ring and two double bonds.

6 0

4 years ago