1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ololo11 [35]
3 years ago
12

Noble gases tend to have what oxidation number

Chemistry
1 answer:
alukav5142 [94]3 years ago
3 0
I looked it up and it said O
You might be interested in
Ba(oh)2+H3po4+h2o how is it <br> balance ?
Igoryamba

Answer:

3Ba(OH)2 + 2H3PO4 —> Ba3(PO4)2 + 6H2O

Explanation:

Ba(OH)2 + H3PO4 —> Ba3(PO4)2 + H2O

There are 3 atoms of Ba on the right side and 1atom on the left side. It can be balance by putting 3 in front of Ba(OH)2 as shown below:

3Ba(OH)2 + H3PO4 —> Ba3(PO4)2 + H2O

There are 2 atoms of P on the right side and 1atom on the left. It can be balance by putting 2 in front of H3PO4 as shown below:

3Ba(OH)2 + 2H3PO4 —> Ba3(PO4)2 + H2O

Now, there are a total of 12 atoms of H on the left side and 2 atoms on the right side. It can be balance by putting 6 in front of H2O as shown below:

3Ba(OH)2 + 2H3PO4 —> Ba3(PO4)2 + 6H2O

Now the equation is balanced as the numbers of the atoms of the different elements present on both sides are equal

4 0
3 years ago
You apply 100.0 of force to a machine. The machine applies 20.0 N of force to the load. What is the mechanical advantage of the
rjkz [21]
MA= output force/input force
MA= 100N/20N
MA= 50
5 0
3 years ago
How many miles are there in 20g of KClO3 (k=39 Cl=35.5 O=16)​
SashulF [63]
<h3>Answer:</h3>

0.144 moles

<h3>Explanation:</h3>
  • The relationship between mass of a compound, number of moles and molar mass of the compound is given by;
  • Number of moles = Mass ÷ Molar mass
  • Molar mass is equivalent to the relative formula mass of the compound that is calculated the atomic masses of the elements making the compound.

In this case;

Our compound, KClO3 will have a molar mass of;

= 39 + 35.5 + 4(16)

= 138.5 g/mol

Mass of KClO3 is 20 g

Therefore;

Number of moles = 20 g ÷ 138.5 g/mol

                            = 0.144 moles

Thus, the number of moles in 20 g of KClO3 is 0.144 moles

4 0
3 years ago
How many dozen (dz) eggs are needed to make 12 muffins? What about 15.5
NARA [144]

Answer:

I think its 1.2 cause I divided 15.5 with 12 and got 1.2 as an answer

8 0
3 years ago
Read 2 more answers
A substance has a volume of 10.0 cm³ and a mass of 89 grams. What is its density?
lara [203]

Answer:

8.9 g / cm^3

Explanation:

Density = mass / volume

We are given volume which is 10.0cm^3 (cm^3 is just fancy way of saying ml), and mass of 89 gram. Just plug them in respective spots.

Density = 89 / 10.0 = 8.9 g / cm^3

4 0
2 years ago
Read 2 more answers
Other questions:
  • One disadvantage of nuclear power is that the waste produced is dangerous. The waste is dangerous because it is what?
    14·2 answers
  • What mass of fes is formed if 9.42 g of fe reacts with 68.0 g of s8? 8fe(s) + s8(s) → 8fes(s)?
    14·1 answer
  • The enthalpy change for the reaction of titanium metal with gaseous iodine is given by the following thermochemical equation: 2
    10·1 answer
  • 7. A pastry chef bakes a cheesecake. What is this an example of?* O Physical Change O Physical Property Chemical Change Chemical
    8·1 answer
  • What is the bronsted acid of NO2- + H2O HNO2 + OH-​
    6·1 answer
  • What happens to ionization energy as you go across a period from left to right
    9·1 answer
  • Is ice silicate or no silicate
    13·2 answers
  • What is an Independent Variable (IV)? *
    7·1 answer
  • Which of the following is true of oxygen?
    12·1 answer
  • How many electrons are lost or gained in forming each ion? a. Ba2+ b. As3- c. Cu2+
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!