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3 years ago

Why is the liquid oxygen machine producing less liquid oxygen than normal?

Chemistry

2 answers:

Mariulka [41]3 years ago

4 0

Answer:

Some of the liquid oxygen evaporated in tank 3.

natita [175]3 years ago

3 0

Answer:

Liquid oxygen evaporates at only a slightly higher temperature than liquid nitrogen because they have similarly low attraction between molecules. This would mean less liquid oxygen is coming out of tank 3 because some of it is evaporating as a gas instead.

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7. A square chunk of plastic has a length of 5 cm, width of 5 cm and height of 5 cm. It has a mass of 200 g. What is its density

BaLLatris [955]

Answer:

$d=1.6\ g/cm^3$

Explanation:

Given that,

The dimension of a square chunk of plastic is 5 cm × 5 cm × 5 cm

Mass, m = 200 g

We need to find its density

Density = mass/volume

It will form a cube. It volume = side³

So,

$d=\dfrac{200\ g}{5^3\ cm^3}\\\\d=1.6\ g/cm^3$

Hence density is $1.6\ g/cm^3$

5 0

4 years ago

Name the stellar process in which the fusion of hydrogen produces other elements.

Vilka [71]

Hydrogen fusion generates the energy for proton - proton chains and the carbon nitrogen oxygen cycle. It is the nuclear fusion of 4 protons to form a helium 4 nucleus.

3 0

3 years ago

BRAINLIESTTT ASAP!! PLEASE HELP ME :)

bogdanovich [222]

2CH4+O2-> 2CH3OH

A combustion reaction involves only hydrogen, carbon, and oxygen where O2 is always a reactant. So, the only one possible is the one stated above.

6 0

3 years ago

Read 2 more answers

Explain how scientists use balanced chemical equations and molar mass concepts to represent reactions and account for the amount

konstantin123 [22]

Explanation:

Scientists most especially chemists use the mole concepts through balanced chemical equations and molar masses to represent chemical reactions and account for the amount of substances.

The mole concept entails finding molar relationships between reactants and products in a chemical reaction. Mole connects difference chemical parameters and it is used in quantitative analysis of chemical reaction.

First, we work from the known to the unknown.
The known is the specie whose mass or number of moles is given.

Number of moles = $\frac{mass}{molar mass}$

After obtaining the number of moles, then go ahead to compared using the balanced reaction with that of the unknown.
Then from them find the mass of the unknown.

6 0

3 years ago

Sucralfate (molecular weight: 2087g/mol) is a major component of Carafate® which is prescribed for the treatment of gastrointest

maxonik [38]

Answer:

The molarity of the solution is 0.048 M (option B)

Explanation:

Step 1: Data given

Sucralfate has a molar mass of 2087 g/mole

mass = 1g

volume = 10 mL

Step 2: Calculate moles of sucralfate

Number of moles = mass of sucralfate / Molar mass of sucralfate

Number of moles = 1 g / 2087 g/mole = 4.79 * 10^-4 moles

Step 3: Calculate molarity

Molarity = Number of moles / volume

Molarity = (4.79 * 10^-4 moles) / (10 *10^-3 L)

Molarity = 0.0479 M ≈ 0.048 M

The molarity of the solution is 0.048 M (option B)

7 0

4 years ago