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
Katyanochek1 [597]
3 years ago
10

Help pleaseeeeeeeeee

Chemistry
2 answers:
krek1111 [17]3 years ago
8 0

Answer:

Dubnium: Group 5 Period 7

Hydrogen: Group 1 Period 1

Explanation:

AlladinOne [14]3 years ago
7 0

Answer:

Db period =7

Group=VB

H period=1

group=IA

You might be interested in
What is one way scientists can split a substance into its simpler components
notsponge [240]

Answer: By using electrolysis.

Explanation:

Electrolysis is a chemical change produced by sending an electric current through a compound. Electrolysis works because the hydrogen and oxygen ions are held together by an electric attraction.

5 0
3 years ago
Give the answer to the problem below using the correct number of significant digits. (1.3 x 103) x (5.724 x 104)
Gemiola [76]
(133.9) x (595.296)= 79,710.1344
Answer with significant digits: 80,000
1.3 has two significant digits so 79,700 rounds up to 80000.
6 0
4 years ago
Read 2 more answers
Is 2AI + 3O2 = 2AI2O3 balanced or unbalanced
Rudik [331]
Balanced there are 2 Al, 6 oxygens on both sides.
7 0
3 years ago
When stress is added to plates they can diverge, converge, or slip past one another True or False
zmey [24]
The answer is True i believe
5 0
3 years ago
What is the total number of hydrogen atoms contained in one molecule of (NH4)2C204?
Ber [7]

Answer:

=8 atoms

Explanation:

In (NH4)2C2O4 there are four moles of Hydrogen in the compound (NH4), but there two molecules of (NH4) in this compound.  That's what the 2 in (NH4)2 means, so multiply 4 x 2 = 8.

Hope this helps (:

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the mass of a sample of material that has a volume of 6260 and a density of 6980 g/cm
    12·1 answer
  • How can you write noncontact force in a sentence
    7·1 answer
  • How do you calculate molar mass?
    7·1 answer
  • The continuous release of nuclear energy caused when on fission reaction triggers more nuclear reactions is a _
    8·1 answer
  • Which of the following best describe an atomic number? An element identity is defined by its atomic number this means it represe
    7·1 answer
  • What properties are associated with metals (grade 9 science)
    6·1 answer
  • Cual es el numero de oxidacion de la respiración​
    6·1 answer
  • Explain briefly how you would obtain crystals of sodium chloride from a mixture of sodium chloride ,lead[ii]oxide and iron filin
    14·1 answer
  • When you exercise strenuously, your body produces excess heat. Describe what your body does to help prevent your temperature fro
    13·2 answers
  • Plsss help i’ll give brainlist
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!