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3 years ago

Write two advantages and two disadvantage of hydrogen

1 answer:

8 0

1.it is readily available since hydrogen is a basic earth element and it's very abundant.
2. It doesn't produce harmful emissions.
Disadvantages
1.it is expensive. It is expensive because it takes a lot of time to separate the element from others.
2.it is difficult to store. Even moving a tiny bit of hydrogen would be very expensive.
3. It is highly flammable. Since it is a very powerful source of fuel, hydrogen can be very flammable.

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Please help me! I put the max brainly points!

Diano4ka-milaya [45]

Answer:

579 mL, .96 kPa, 34.21 c

Explanation:

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3 years ago

Read 2 more answers

You are given a sample resembling silver. Which of the following properties could be used to help determine whether the sample i

defon

Answer:

the density of the sample - the melting point of the sample

Explanation:

Intrinsic property is the property of matter which exists itself or within subject. In other words, it do not depend on the mass of the sample. An extrinsic property is not inherent or essential to subject which is being characterized. In other words, it depend on the mass of the sample.

For example,

Density, melting point are example of intrinsic property. Whereas, weight, volume are an example of extrinsic property.

Intrinsic properties helps to determine the matter. Thus, density of sample and melting point of sample is the answer.

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3 years ago

Each nucleus of a cell contains:

Jobisdone [24]

Hi there!

Answer:

Genes and chromosomes

Explanation:

All cells contain Genetic information (or Dna) which is organised into structures called chromosomes.

Chlorophyll are basically green pigments in Chloroplasts and both are only found in plant cells and not all cells

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3 years ago

Please HELP! Use the following Equations to answer the problem: CH3OH + O2 —> CO2 + H2O

snow_lady [41]

Answer:

The answer to your question is below

Explanation:

Balanced chemical reaction

2CH₃OH + 3O₂ ⇒ 2 CO₂ + 4H₂O

Reactant Element Product

2 C 2

8 H 8

8 O 8

Molar mass of CH₃OH = 2[12 + 16 + 4]

= 2[32]

= 64 g

Molar mass of O₂ = 3[16 x 2] = 96 g

Theoretical proportion CH₃OH/O₂ = 64 g/96g = 0.67

Experimental proportion CH₃OH/O₂ = 60/48 = 1.25

Conclusion

The limiting reactant is O₂ because the Experimental proportion was higher than the theoretical proportion

Balanced chemical reaction

S₈ + 12O₂ ⇒ 8SO₃

Reactant Elements Products

8 S 8

24 O 24

Molar mass of S₈ = 32 x 8 = 256 g

Molar mass of O₂ = 12 x 32 = 384 g

Theoretical proportion S₈ / O₂ = 256 / 384

= 0.67

Experimental proportion S₈ / O₂ = 40 / 35

= 1.14

Conclusion

The limiting reactant is O₂ because the experimental proportion was lower than the theoretical proportion.

6 0

4 years ago

A chemist makes a solution of NaOH for use in an experiment. She dissolves 0.00500 mol NaOH in 1.00 L H2O. The NaOH completely d

anygoal [31]

Answer:

pH = 11.7

Explanation:

Given:

[OH-] = 0.00500 M

To determine:

pH of the solution

Explanation:

pH refers to the H+ ion concentration in a given solution whereas pOH indicates the OH- ion concentration.

pH and pOH are related by the following equation:

$pH + pOH = 14 ------(1)$

Here:

$pH = -log[H+]\\\\pOH = -log[OH-]$

When OH- = 0.00500 M

$pOH = -log(0.00500) = 2.30\\$

Based on equation(1):

$pH = 14 - pOH = 14 -2.30=11.7$

6 0

4 years ago

Write two advantages and two disadvantage of hydrogen​

Write two advantages and two disadvantage of hydrogen