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vovikov84 [41]
3 years ago
15

What are isotopes please help

Chemistry
2 answers:
NikAS [45]3 years ago
6 0

Answer:

Isotopes are atoms of the same element with the same number of protons but different number of neutrons.

Hope this helps.

Hatshy [7]3 years ago
5 0
Variants of a particular chemical element which differ in neutron number, and consequently in nucleon number. all isotopes of a given element have the same number of protons but different number of neutrons in each atom.
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NH4Cl and Na3PO4<br> Balanced Equation<br> Total Ionic Equation<br> Net Ionic Equation
kondor19780726 [428]

Answer:

No Reaction => Does not react to form a Driving Force compound

Explanation:

6 0
3 years ago
Select all of the elements that are classified as metals.
ASHA 777 [7]

Answer:

Gold, sodium, aluminum

Explanation:

The metals are located on the left side of the periodic table

4 0
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Read 2 more answers
The general formula for an amino acid is
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In the following reaction 8 grams of ethane are burned and 11 grams of CO2 are collected. What is the percent yield? 2C2H6+7O2=
Alika [10]
47% yield.  
First, let's determine how many moles of ethane was used and how many moles of CO2 produced. Start with the respective atomic weights. 
Atomic weight carbon = 12.0107 
Atomic weight hydrogen = 1.00794 
Atomic weight oxygen = 15.999  
Molar mass C2H6 = 2 * 12.0107 + 6 * 1.00794 = 30.06904 g/mol 
Molar mass CO2 = 12.0107 + 2 * 15.999 = 44.0087 g/mol  
Moles C2H6 = 8 g / 30.06904 g/mol = 0.266054387 mol 
Moles CO2 = 11 g / 44.0087 g/mol = 0.249950578 mol  
Looking at the balanced equation, for every 2 moles of C2H6 consumed, 4 moles of CO2 should be produced. So at 100% yield, we should have 0.266054387 / 2 * 4 = 0.532108774 moles of CO2. But we only have 0.249950578 moles, or 0.249950578 / 0.532108774 = 0.46973587 =
46.973587% of what was expected.  
Rounding to 2 significant figures gives 47% yield.
8 0
4 years ago
How many grams of Carbon are in sample of 400 grams of Co2?​
RoseWind [281]

Answer:

Mass of carbon = 109.1 g

Explanation:

Given data:

Mass of carbondioxide = 400 g

Mass of carbon = ?

Solution:

Molar mass of carbon = 12 g/mol

Molar mass of CO₂ = 44 g/mol

Mass of carbon in 400g of  CO₂:

Mass of carbon = 12 g/mol/44 g/mol × 400 g

Mass of carbon = 109.1 g

3 0
4 years ago
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