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kow [346]
3 years ago
12

Is "isotope" another name for an atom??

Chemistry
2 answers:
GuDViN [60]3 years ago
5 0
An Isotope is when an element has the same number of protons but different number of neutrons. its the same element but the masses(protons+neutrons) are different
notsponge [240]3 years ago
5 0
Isotope is a given element that have the same number of protons in each atom
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24 grams of iron is added to a graduated
Vanyuwa [196]

Answer:

d = 8 g/mL

Explanation:

Given data:

Mass of metal = 24 g

Volume of eater = 45 mL

Volume of water + metal = 48 mL

Density of iron metal = ?

Solution:

Volume of metal:

Volume of metal = volume of water+ metal - volume of water

Volume of metal = 48 mL - 45 mL

Volume of metal = 3 mL

Density of metal:

d = m/v

d = 24 g/ 3 mL

d = 8 g/mL

4 0
3 years ago
What continent has no deserts
nevsk [136]

Answer:

Antarctica.

Explanation:

It’s all ice.

4 0
3 years ago
For the reaction, 2A + B → 3C, rate of disappearance of A is 0.3 M/s in a certain time interval.What is the average rate of appe
andrezito [222]

Answer:

E) rate of appearance of C = 0.45 M/s

rate of the reaction = 0.15 M/s

Explanation:

2A + B → 3C

Writing rate law for the reaction:

<u>Rate of reaction</u> = -\frac{1}{2}\frac{d[A]}{dt} = -\frac{d[B]}{dt} = \frac{1}{3}\frac{d[C]}{dt} → equation 1

Given that the rate of disappearance of A is 0.3 M/s

⇒ - \frac{d[A]}{dt} = 0.3 M/s

⇒Rate of reaction = - \frac{1}{2}\frac{d[A]}{dt} = \frac{1}{2}×0.3 M/s

⇒<u>Rate of reaction = 0.15 M/s</u>

From equation 1, \frac{d[C]}{dt} = - \frac{3}{2}\frac{d[A]}{dt} = \frac{3}{2}×0.3 M/s

⇒\frac{d[C]}{dt} = 0.45 M/s

or <u>the rate of appearance of C = 0.45 M/s</u>

7 0
3 years ago
How are a fact and a theory similar
Serhud [2]

Answer: A butterfly population includes both green and yellow butterflies, and a predator sees yellow more easily than it does green" would lead to evolution since the green ones would live on.

Explanation:

7 0
2 years ago
Assume prices increase from $15 to $18, yet quantity remains at 25. What is the total revenue?
UNO [17]

Given:

Number of items = 25

Price per item = $18

<u>To determine:</u>

The total revenue

<u>Explanation:</u>

Total revenue = quantity * price per item

                       = 25 items * 18 dollar/ 1 item = $450

Ans: A) The total revenue is $450

4 0
3 years ago
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