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Yanka [14]
3 years ago
9

What is an isotope?(in science)

Chemistry
1 answer:
Nady [450]3 years ago
8 0
<span>each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties.</span>
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A container containing 5.00 L of a gas is collected at 100 K and then allowed to expand to 20.0 L. What must the new temperature
Arte-miy333 [17]

Answer:

400 K

Explanation:

Charles's law states:

A determined volume of a gas is directly proportional to its temperature, while we have constant pressure.

V₁ / T₁ = V₂ / T₂

We replace data:

5 L / 100K = 20L / T₂

T₂ = 20L . 100K / 5 L

T₂ = 400 K

The volume was quadrupled, so the temperature did.

If we want T° at Celsius degree:

400 K - 273 = 127°C

7 0
3 years ago
How many moles of cesium (Cs) atoms are in 675 g Cs?
snow_tiger [21]
Just divide 675 by the atomic number of cesium and you will end up with

5.078798426627975
3 0
3 years ago
A metal that lost 2 electrons
Ymorist [56]

Answer:

is a member of IIA group

Explanation:

it has capacity to lose to electrons so that the become stable

8 0
3 years ago
Arsenic reacts with chlorine to form a chloride if 1.587 g of arsenic reacts with 3.755 g of chlorine what is the simplest formu
Marina CMI [18]
<span>Determining the number chloride molecules that will result from this reaction requires we first determine the number of moles of arsenic and the number of moles of chlorine on hand.

1.587 grams of arsenic divided by its atomic weight of 74.92 grams per mole results in 0.0212 moles.

We do the same for chlorine. 2.755 grams of chlorine divided by 35.45 grams per mole gives us 0.106 moles.
0.106 moles divided by .0212 moles equals 5; therefore, the simplest formula of the chloride produced will be AsCl</span>₅<span>.</span>
8 0
3 years ago
Convert 0.04 HL to L.
aliina [53]

Answer:

4 liters brainliest Idc rn

Explanation:

jk but enjoy kiddos :(

3 0
3 years ago
Read 2 more answers
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