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
Tju [1.3M]
3 years ago
10

This unbalanced equation represents a chemical reaction:

Chemistry
2 answers:
inn [45]3 years ago
5 0

Answer:

2

Explanation:

Pb(NO3)2 + 2NaI 2NaNO3 + PbI2

riadik2000 [5.3K]3 years ago
5 0
It is b 222222222222222222222222222
You might be interested in
Which of the following includes the correct pairing of volcano and its formation? Cinder volcano; large, explosive eruptions Cin
Anarel [89]
The correct pairing of the volcano to its formation would be the composite volcano wherein it usually yields large and violent eruptions. In addition to that, composite volcanoes or also known as the stratovolcano is usually made of materials containing increasing layers of hardened lava.
4 0
3 years ago
Read 2 more answers
Molecule of water contains hydrogen and oxygen in a 1:8 ratio by mass. This is a statement of __________.A) the law of multiple
fgiga [73]

Answer:

The correct answer is B.

Explanation:

The molecule of water has 2 atoms of hydrogen and 1 atom of oxygen.

The ratio of masses are given as:

2\times 1 g/mol: 1\times 16 g/mol= 1 : 8

This illustrates the law of definite proportions which is also known as law of constant compositions .

The law states that 'the elements combining to form compound always combine in a fixed ratio by their mass.'

Whereas :

Law of multiple proportion states that when two elements combine with each other to form more than one compounds , the mass of one element with respect to the fixed mass of another element are in ratio of small whole numbers.

Law of conservation of mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

In a balanced chemical reaction ,total mass on the reactant side must be equal to the total mass on the product side.

Law of conservation of energy states that energy can neither be created nor be destroyed but it can only be transformed from one form to another form.

7 0
4 years ago
To what temperature must a balloon, initially at 25°c and 2.00 l, be heated in order to have a volume of 6.00 l? question 8 opti
cluponka [151]
<span>a.655 k not 100 percent on this but try it. You will use 273.15 and add your Celcius temp to get it in Kelvin
</span>
5 0
3 years ago
Read 2 more answers
Can someone help me with number 1 and 2 plz!
GalinKa [24]

Answer:

1) 0 N

2) 8 N

Explanation:

The net force is the sum of all of the forces acting on the object.

For question 1, we can see that there is a force of 5 N acting to the right and 5 N acting to the left.  If we define the right to be positive and the left to be negative, then the net force equals:

Fnet = 5N - 5N = 0 N

Therefore, the net force in question 1 is 0 N.

For question 2, the process is very similar.  We want to find the sum of the forces acting on the object.  In this case, there are forces of 3 N and 5 N acting to the right.

Fnet = 3 N + 5 N = 8 N

Therefore, the net force in question 2 is 8 N.

Hope this helps!

3 0
3 years ago
Gold has a molar mass of 197 g/mol. (a) how many moles of gold are in a 3.98 g sample of pure gold? (b) how many atoms are in th
Natali5045456 [20]
A.)49.4974874 moles or 49.5 moles
B.)2.980808730172671e+25 or 3e+25
6 0
3 years ago
Other questions:
  • If you increase the force of an object what happens to the acceleration
    6·2 answers
  • Which of the following elements is a metalloid
    11·2 answers
  • Balance the combustion reaction between butane and oxygen. 2C4H10 + O2 → CO2 + H2O
    8·2 answers
  • Clouds that form at an elevation of 3 kilometers will
    6·1 answer
  • Are parts of the circulatory system<br> .The<br> , and
    10·1 answer
  • Question 1 of 10
    12·1 answer
  • How many atoms are in 45.22 moles of strontium​
    6·1 answer
  • true or false Rutherford's nuclear atomic model explains why electrons fall into and collide with the nucleus
    5·1 answer
  • WILL GIVE BRAINLIEST AND POINTS!!
    13·1 answer
  • Which of the following pairs of elements can combine to form an ionic compound?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!