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
Zepler [3.9K]
3 years ago
5

30. How many types of chemical reactions are there?

Chemistry
2 answers:
Nadusha1986 [10]3 years ago
8 0

Answer:

B. Five

Hope this helps........

zhenek [66]3 years ago
3 0

B Five Is the correct answer

mark me as brilliant

You might be interested in
Write 2,469,100 in Engineering Notation with 3 significant figures.
Gala2k [10]

Answer: 2.47\times 10^{6}

Explanation:

Engineering notation : It is the representation of expressing the numbers that are too big or too small and are represented in the decimal form times 10 raise to the power.  It is similar to the scientific notation but in engineering notation, the powers of ten are always multiples of 3.

The engineering notation written in the form:

a\times 10^b

where,

a = the number which is greater than 0 and less than 999

b = an integer multiple of 3

Now converting the given value of 2,469,100 into engineering notation, we get 2.47\times 10^{6}

Hence, the correct answer is, 2.47\times 10^{6}

6 0
3 years ago
Um átomo X possui 8 neutrons e seu número atômico e igual a 8. Sabendo que esse atomo é isótopos de Y, que possui número de mass
hodyreva [135]
<u>Question in English : </u>
<span>
<em>An atom X has 8 neutrons and its atomic number equals 8. Knowing that this atom is isotopes of Y, which has mass number 18, answer: What is the number of neutrons in atom Y?</em>

</span><span><u>Answer :</u>

</span>

Isotopes are defined as the atoms which have same number of protons but different number of neutrons of same element. Since the proton number is same, the atomic number also same. Hence the atomic number of Y is 8.

Mass number = atomic number + neutron number

                   18 = 8 + neutron number

Neutron number = 10

 

Hence, there are 10 neutrons in Y.

3 0
3 years ago
What will happen to the balloon and cloth if they are brought close together without touching? Explain.
fomenos
They will repeal(that is the correct answer to the question)<
5 0
3 years ago
Which of the following lists only include molecules? He h2o
lbvjy [14]
He is the only one that includes only mollecules
4 0
3 years ago
S04 has how many oxygen atoms?
vivado [14]
<span>The correct answer would be: 4 oxygen atoms</span>
8 0
3 years ago
Other questions:
  • How many atoms are in 0.25 moles of carbon?
    10·1 answer
  • What is the relationship between atomic numbers and atomic radii of elements in group 2a
    8·1 answer
  • What is decomposision reaction
    12·1 answer
  • What are the respective hybridizations of the imine nitrogen and carbonyl carbon of the CPV B-state as it is depicted in the pas
    8·1 answer
  • What is an acid in chemistry?
    14·2 answers
  • How are waves reflected, absorbed, or transmitted through materials such as air?
    13·1 answer
  • Need help asap please help ill mark brainliest
    11·2 answers
  • Which statements correctly describe characteristics of cells? Check all that apply. A. Animal cells are all generally circular i
    13·1 answer
  • What is true about radioactive isotopes of an atom?
    12·2 answers
  • Copper metal has a specific heat of 0.385 J/goC. Calculate the amount of heat required to raise the temperature of 22.8 g of Cu
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!