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3 years ago

When mixing vinegar and baking soda a reaction occurs. What caused the bubbles in the reaction?

2 answers:

8 0

The reaction between baking soda and vinegar is used in chemical volcanoes

meriva3 years ago

6 0

Vinegar has acetic acid, and baking soda has sodium bicarbonate. when the two mix it yields carbonic acid and since carbonic unstable it undergoes double displacement which produces carbon dioxide in which the carbon dioxide escapes the sulution as bubbles

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Why don’t scientists use the Bohr model above to explain charge transfer?

Jlenok [28]

Answer:

nsksbsjensnsjeiejensbsksks

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2 years ago

The Charles Zeppelin, a fictional airship, is filled with 2.16 x 105 liters of hydrogen gas (H2). On the ground, the airship’s t

Dmitry [639]

Answer:

V2 = 3.11 x 105 liters

Explanation:

Initial Volume, V1 = 2.16 x 105 liters

Initial Temperature, T1 = 295 K

Final Temperature, T2 = 425 K

Final Volume, V2 = ?

These quantities are related by charle's law and the equation of the law is given as;

V1 / T1 = V2 / T2

V2 = T2 * V1 / T1

V2 = 425 * 2.16 x 105 / 295

V2 = 3.11 x 105 liters

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2 years ago

A standard backpack is approximately 30cm x 30cm x 40cm. Suppose you find a hoard of pure gold while treasure hunting in the wil

Blizzard [7]

Explanation:

The dimensions of a standard backpack is 30cm x 30cm x 40cm

The mass of an average student is 70 kg

We know that, the density of gold is 19.3 g/cm³.

Let m be the mass of the backpack. So,

$\text{density}=\dfrac{\text{mass}}{\text{volume}}\\\\m=d\times V\\\\m=19.3\ g/cm^3\times (30\times 30\times 40)\ cm^3\\\\m=694800\ g\\\\\text{or}\\\\m=694.8\ kg\approx 700\ kg$

An average student has a mass of 70 kg. If we compare the mass of student and mass of backpack, we find that the backpack is 10 times of the mass of the student.

8 0

2 years ago

Which of these following is true about the mass of the reactants in a chemical reaction?

yuradex [85]

They will be stay the same all the way through. your product must be the same mass

7 0

3 years ago

What is the difference between a positive and negative ion?

ra1l [238]

Positive ions or molecules that have lost one or more electrons where negative ions are actually oxygen atoms with extra negatively charged electrons.

5 0

2 years ago