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2 years ago

Should disel and gasoline engines complaint with CO2 emissions standards be banned?? Can this statement be answered by science?

Chemistry

2 answers:

Arte-miy333 [17]2 years ago

8 0

yes it can be banned because it is toxic

luda_lava [24]2 years ago

7 0

Yes. Emissions at the getgo are not that harmful. However, when they build up, they can become lethal. This can be declaired by science in the sense that scientists have done research and done it with monkeys who have relatable body parts with humans.

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If the lab technician needs 30 liters of a 25% acid solution, how many liters of the 10% and the 30% acid solutions should she m

Mice21 [21]

Answer:

7.5 L of the 10% and 22.5 L of the 30% acid solution, she should mix.

Explanation:

Let the volume of 10% acid solution used to make the mixture = x L

So, the volume of 30% acid solution used to make the mixture = y L

Total volume of the mixture = x + y = 30 L .................. (1)

For 10% acid solution:

C₁ = 10% , V₁ = x L

For 30% acid solution :

C₂ = 30% , V₂ = y L

For the resultant solution of sulfuric acid:

C₃ = 25% , V₃ = 30 L

Using

C₁V₁ + C₂V₂ = C₃V₃

10×x + 30×y = 25×30

So,

x + 3y = 75 .................. (2)

Solving 1 and 2 we get,

x = 7.5 L

y = 22.5 L

6 0

2 years ago

Milk of magnesia has the chemical formula Mg(OH)2. What is the mass of 3.2 moles of milk of magnesia? The molar Mass of magnesiu

GenaCL600 [577]

To calculate the mass of milk of magnesia given, we need certain data like molar mass of the compound which needs the atomic mass of the atoms in the compound. We calculate as follows:

Molar mass of Mg(OH)2 = 24.3 g/mol + (2 x (16 + 1.0)) = 58.30 g/mol

Mass = 3.2 mol (58.30 g/mol) = 186.56 grams

3 0

2 years ago

Does anyone know what Hydrogen's oxidation state would be if it was acting as an anion non-metal?

Ilia_Sergeevich [38]

Answer:

yeah,The oxidation state of an atom does not represent the "real" charge on that atom, or any other actual atomic property.Hydrogen has OS = +1, but adopts −1 when bonded as a hydride to metals or metalloids. Oxygen in compounds has OS = −2. This set of postulates covers .

Explanation:

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2 years ago

Which statements describe seismic waves? Select three options.

Alenkasestr [34]

Answer:

A, C, E

Explanation:

8 0

2 years ago

Read 2 more answers

Match each definition to the vocabulary word

SVEN [57.7K]

Answer:

Answer is given below:

Explanation:

The way it is made (3) Structure.

The basic unit of life (7) Cell.

Perform the different functions of cell (7) Organelles.

No nucleus and unicellular (1) Prokaryote.

Composed of many cells (6) Tissue.

Concluded that all animals are made of cells (10) Theodore schwann .

Contains the genetic information (2) Nucleus.

Concluded that all plants are made up of cells (9) Matthias Schleilden.

Concluded that all cell came from pre existing cells (10) Rudolf Virchow.

Has a nucleus and some are unicellular, but mostly

multicellular (4) Eukaryote

5 0

2 years ago