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jeka94
3 years ago
7

Which element is the least metallic between cadmium, silver, zinc, or iron?

Chemistry
1 answer:
ad-work [718]3 years ago
7 0

The answer is cadmium.

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How many moles are in 715.11 grams of Ca(C2H302)2?
nikdorinn [45]

Answer:

4.52 mol

Explanation:

We do grams/Molar Mass to find the number of moles. The grams are given but the molar mass, you have to add all masses of the elements up by refering to a periodic table, and you should get that the compound has a mass of 158.168. Do 715.11 dived by that and you get the answer above.

3 0
3 years ago
True or False: The average atomic mass is always closer to the isotope with the smallest mass
SashulF [63]
True hoped I help ☺☺☺☺
5 0
3 years ago
Name two methods of separating mixtures. Describe the property each of these separations based
grigory [225]

Answer:

Distillation and using Chromatography

Explanation:

Distillation:

based on using boiling point.

Ex: separating a mixture of water and sugar by boiling the water away.

Chromatography:

based on absorption

Ex: separating the different colours that make up a black marker

8 0
4 years ago
How many mols of chlorine are in 120g of chlorine gas
xz_007 [3.2K]

Answer:

Number of moles of chlorine = 3.38 mol

Explanation:

Given data:

Mass of chlorine = 120 g

Moles of chlorine = ?

Solution:

Formula:

Number of moles = mass/molar mass

Molar mass of chlorine = 35.5 g/mol

Now we will put the values in formula.

Number of moles = 120 g/ 35.5 g/mol

Number of moles = 3.38 mol

6 0
3 years ago
What is the correct mathematical relationship between the number of moles, the volume, and the standard molar volume of a substa
masha68 [24]
N=V/Vm

n - the number of moles
V - the volume
Vm=22.4 L/mol - the standard molar volume of gas
8 0
3 years ago
Read 2 more answers
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