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
Zarrin [17]
3 years ago
11

What is the difference between a balanced equation and an unbalanced equation

Chemistry
1 answer:
Nadya [2.5K]3 years ago
6 0
In balanced equation there are same number of atoms in each element on both sides of the equation. unbalanced equation is when there are different number of atoms in each element on the both sides
You might be interested in
A 60 and N net force is applied to a 12 kg box which is the acceleration of the box?
GarryVolchara [31]

The relation between force and mass and acceleration is

Force = mass X acceleration

The SI unit will be

Force = Newton

mass =kg

acceleration=\frac{m}{s^{2} }

thus

acceleration = \frac{Force}{mass}

putting values

acceleration=\frac{60 N}{12kg}=5\frac{m}{s^{2} }

Thus the acceleration will be

5\frac{m}{s^{2} }

6 0
3 years ago
What would happen to the temreture if there was a sudden icrease in the amount of greenhouse gasses
Rus_ich [418]

Answer:

The higher concentrations of greenhouse gases—and carbon dioxide in particular—is causing extra heat to be trapped and global temperatures to rise.

4 0
2 years ago
Consider the following reaction: 2Mg(s)+O2(g)-->2MgO(s) delta H=-1204kJ
Pachacha [2.7K]

Answer:

a. The reaction is exothermic.

b. -87,9 kJ

c. 9,60g of Mg(s)

d. 602kJ are absorbed

Explanation:

Based on the reaction:

2Mg(s) + O₂(g) → 2MgO(s) ΔH = -1204kJ

a. The reaction is exothermic. Because ΔH<0. That means the reaction produces heat when occurs

b. 3,55g of Mg(s) are:

3,55g Mg × ( 1mol / 24,305g) = 0,146 moles of Mg(s)

As 2 moles of Mg(s) produce -1204 kJ of heat:

0,146 moles of Mg(s) × ( -1204kJ / 2mol Mg) =  <em>-87,9 kJ</em>

c. If -238 kJ of heat were transferred. The moles of Mg(s) that react must be:

-238kJ × ( 2mol Mg / -1204kJ) = 0,395 moles of Mg(s). In grams:

0,395 moles × ( 24,305g / 1mol Mg) = <em>9,60g of Mg(s)</em>

d. The reverse reaction is:

2MgO(s) → 2Mg(s) + O₂(g)  ΔH = +1204kJ

40,5g of MgO(s) are:

40,5g MgO × ( 1mol MgO / 40,3044g) = 1,00 moles of MgO(s)

As 2 moles of MgO absorbe 1204kJ of energy:

1,00 moles of MgO(s) × ( +1204 kJ / 2mol MgO) = <em>602kJ are absorbed</em>

<em></em>

I hope it helps!

7 0
3 years ago
The electromagnetic waves with the shortest wavelengths and the highest frequencies are called: a. ultrasonic waves. c. x-rays.
nika2105 [10]
The answer would be  D) gamma rays
6 0
3 years ago
How can scientist describe the arrangement of electrons in an atom?
Delicious77 [7]

Answer:

The electrons in an atom move around the nucleus in regions known as electron shells.

8 0
3 years ago
Other questions:
  • An atom holds 7 electrons. use orbital notation to model the probable location of its electrons.
    11·1 answer
  • Describe the ways you can know that a chemical reaction has occured
    7·1 answer
  • Given the name of a binary molecular compound, describe how to write its formula. Use dinitrogen trioxide as an example.
    5·2 answers
  • What phase of Moon can be ONLY seen at night?
    15·2 answers
  • The volume of a pond being studied for the effects of acid rain is 35 kiloliters (kL). There are 1,000 liters (L) in 1 kL and 10
    10·1 answer
  • Number of grams in four moles of BaCO3
    8·1 answer
  • When you finish using the compound brightfield microscope, what should you have your lab instructor do?
    12·1 answer
  • Suppose that the gas-phase reactions A→B and B→A are both elementary processes with rate constants of 4.7×10−3s−1 and 5.8×10−1s−
    5·1 answer
  • Please only answer if you are 100% sure it's a major grade.<br> .<br> 35 POINTS
    15·2 answers
  • Why is chemistry a thing
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!