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Andrews [41]
3 years ago
13

The neutral particles found in the nucleus of an atom are referred to as

Chemistry
1 answer:
motikmotik3 years ago
4 0
The answer is Neutrons
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You are working in the lab, how many grams of solute you need to make 200.0 g of 3.4% of solution?
Goryan [66]

Answer:

6.8g of solute are needed

Explanation:

Percent by mass, (w/w%) is defined as the mass of solute in 100g of solution. A solution that is 3.4% contains 3.4g of solute in 100g of solution. That means to make 200g of solution are required:

200g solution * (3.4g solute / 100g solution) = 6.8g of solute are needed

6 0
3 years ago
How many grams of 02 will be formed from 6.5 moles of KCLO3
Allisa [31]

Answer:

312 g of O₂

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

2KClO₃ —> 2KCl + 3O₂

From the balanced equation above,

2 mole of KClO₃ decomposed to 3 moles of O₂.

Next, we shall determine the number of mole of O₂ produced by the reaction of 6.5 moles of KClO₃. This can be obtained as follow:

From the balanced equation above,

2 mole of KClO₃ decomposed to 3 moles of O₂.

Therefore, 6.5 moles of KClO₃ will decompose to produce = (6.5 × 3)/2 = 9.75 moles of O₂.

Finally, we shall determine the mass of 9.75 moles of O₂. This can be obtained as follow:

Mole of O₂ = 9.75 moles

Molar mass of O₂ = 2 × 16 = 32 g/mol

Mass of O₂ =?

Mole = mass / Molar mass

9.75 = Mass of O₂ / 32

Cross multiply

Mass of O₂ = 9.75 × 32

Mass of O₂ = 312 g

Thus, 312 g of O₂ were obtained from the reaction.

4 0
2 years ago
Read 2 more answers
Which activity is an example of chemical change?
frutty [35]
An old penny rusting, remember you can’t undo a chemical change
3 0
2 years ago
What is Reflection? ​
11Alexandr11 [23.1K]

Answer:Reflection is the bounce back of the rays of light

7 0
3 years ago
A scientist is studying two types of worms. Worm X has DNA identical to its parent. Worm Y has a combination of DNA from two par
beks73 [17]

Answer:

2. Worm Y reproduces sexually, which gives it genetic variation.

5 0
3 years ago
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