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Anna [14]
2 years ago
12

Water is boiled in a flask with a balloon over the top of the water gets the balloon expand what has happened to the weight of t

he Laskin balloon in this experiment
Chemistry
1 answer:
Verdich [7]2 years ago
7 0
It decreases since a air less balloon is heavier than a Aired balloon
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Which characteristic of O₂ is correct?
barxatty [35]

Answer:

One mole of O₂ weighs 32 g

Explanation:

5 0
1 year ago
Isra is analyzing the properties of several samples of elements to find out which sample is a metalloid. Which set of properties
Tatiana [17]

Answer:

Low luster, can conduct electricity

4 0
3 years ago
Read 2 more answers
If you had 2.50 moles of anything, how many of those things would you have?
Wittaler [7]

Answer:

1.51 x 10²⁴ things

Explanation:

According to Avogadro's Constant.

1 mole of any substance, constains 6.02×10²³ particles of that subtance.

From the question,

If we have 2.50 moles of anything,

1 mole of anything ⇒ 6.02×10²³ things

2.50 moles of anything ⇒ y things

solving for y

y = (2.50× 6.02×10²³)/1

y = 15.05×10²³

y = 1.505×10²⁴

y ≈ 1.51×10²⁴

7 0
3 years ago
Which of the following always changes when transmutation occurs?
mart [117]

Answer:

The atomic number

Explanation:

Transmutation refers to the conversion of one chemical element into another. A transmutation usually involves a change in the structure of atomic nuclei and this may be induced by a nuclear reaction.

Transmutation was first achieved in 1919 by Lord Rutherford when he successfully changed a nitrogen nucleus to an oxygen-18 isotope, producing a proton in the process.

Since transmutation often involves changing one atom into another, the atomic number or mass number of the original element always changes (to form a new element) in the process.

3 0
2 years ago
This iron oxide mineral commonly has a reddish color and consistently has red streaks. What mineral is it?
Nezavi [6.7K]

solution:

This iron oxide mineral commonly has a reddish color and consistently has red streaks. this streaks is hematite.

6 0
3 years ago
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