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Ksju [112]
3 years ago
5

In at least three sentences, explain three disadvantages associated with hydrogen fuel use.

Chemistry
1 answer:
Dmitry_Shevchenko [17]3 years ago
7 0

Here are some disadvantages, is that nitrogen dioxide is a toxic gas and it can still be harmful when ingested by human, also critics of hydrogen fuel cells argue that although these cells do not emit carbon after burning, they give out nitrogen dioxide and other emissions.

Hope this helps

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Choose all the answers that apply MORE THAN ONE ANSWER. Salt is an ionic compound. It _____.
Anuta_ua [19.1K]

dissolves easily in water

has a high boiling point

has a high melting point

conducts electricity when melted

Explanation:

Salts are ionic compounds. Ionic compounds are formed when two atoms exchange their valence electrons. One atom gains and the other atom loses.

Generally, ionic compounds have the following properties:

  1. They are usually hard solids with high melting points or liquids with high boiling points.
  2. They are soluble in water and insoluble in non-polar solvents. This is conforms with the solubility rule that like dissolve like.
  3. In aqueous solution or molten form, ionic compounds conducts electricity.
  4. They take part in very fast chemical reactions.

Learn more:

Ionic compounds brainly.com/question/6071838

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3 years ago
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If you have a room that is 14 feet wide, 20.5 feet long, with 10 foot ceilings. What is the total
nikdorinn [45]

Answer:

i got 6

Explanation:

Because 14 feet divide by 20.5 gives you 0.6

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4 0
2 years ago
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In the titration of a solution of Sodium hydroxide, an acid titrant was prepared by diluting 125.0 mL of 10.00 mol/L Nitric acid
harina [27]

Answer:

1.395M NaOH

Explanation:

Sodium hydroxide, NaOH, reacts with nitric acid, HNO3, as follows:

NaOH + HNO3 → NaNO3 + H2O

<em>Where 1mol of NaOH reacts with 1mol of HNO3</em>

To solve this question we must find the concentration of the titrant. With the concentration and the needed acid we can find the moles of HNO3 added = moles NaOH in the solution. With the moles of NaOH and its volume we can find its concentration as follows:

<em>HNO3 concentration:</em>

10.00mol/L HNO3 * (125.0mL/500.0mL) = 2.500M HNO3

<em>Moles HNO3 = Moles NaOH:</em>

16.74mL = 0.01674L*(2.500mol/L) = 0.04185 moles HNO3 = Moles NaOH

<em>Concentration NaOH:</em>

0.04185 moles / 0.0300L =

1.395M NaOH

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2 years ago
Many people think that summer is warmer because the earth is closer to the sun at that time of year. explain why
Marysya12 [62]
Summer days are warmer because the path of the sun is longer and we have more direct sunlight during that time
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3 years ago
What is the pH of a 0.40 M solution of C6H5COOH?
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