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
liq [111]
3 years ago
9

Hydrogen is a pure substance represented by the chemical symbol H. Which of the following best describes hydrogen?

Chemistry
1 answer:
Soloha48 [4]3 years ago
3 0

Answer:

B is the answer

Explanation:

Because it a molecular mass of one

You might be interested in
Use your periodic table to answer the following questions. Pay attention to the spelling of the element names and make sure to w
Novay_Z [31]

Explanation:

1. K (Potassium)

2. Te (Tellurium)

3. F (Flourine)

4. group 11, period 4

5. group 18, period 4

6. group 12, period 6

7. Cl

8. Pb

9. W

10. Sb

11. Na

12. period 6, group 11

13. period 5, group 11

14. period 2, group 16

15. Groups 13–16 of the periodic table contain one or more metalloids

16. Hydrogen

17. Helium

18. Calcium

19. Cobalt

20. Carbon

3 0
3 years ago
If one molecule of glucose (C6H12O6) reacts completely with three molecules of oxygen (O2), what is the TOTAL number of atoms th
USPshnik [31]

Answer;

30 atoms

Explanation;

When glucose, C6H12O6, reacts with oxygen it produces carbon dioxide and water. If a molecule of glucose reacts completely with three molecules of oxygen, then 30 atoms would be produced because there are 24 atoms in glucose and 6 atoms in oxygen molecules.

The equation for the reaction would be;

C6H12O6 + 6O2(g) → 6CO2(g) + 6 H2O(l)

7 0
3 years ago
Read 2 more answers
Which of the following will have a larger radius than zinc ? Gallium (Ga) Magnesium (Mg) Aluminum (Al) Strontium (St)
oksian1 [2.3K]

Answer:

Strontium (St)

Explanation:

The atom that will have a larger radius than zinc is strontium, Sr.

Atomic radius is defined as the half of the inter-nuclear distance between two covalently bonded atoms of non-metallic elements or half of the distance between two nuclei in the solid state of metals.

  • Across the period atomic radii decreases progressively due to the increase in nuclear charge.
  • Down a group atomic radii increase progressively due to the successive shells of electrons being added.
  • Since strontium satisfies the criteria, it has the larger atomic radius.
7 0
3 years ago
Help me please !! How to solve it ??
snow_tiger [21]
1st one= CaO +H2O=Ca(OH)2
product side-
Ca=1
O=2
H=2
Reactant side-
Ca=1
O=2
H=2
The first one is balanced for you 
There is 1 calcium on each side 2 oxygens on each side and 2 hydrogens on each side


6 0
3 years ago
Give the name of one of the 3 common acids used in chemistry
FrozenT [24]
I think one is Hydrochloric acid
7 0
2 years ago
Read 2 more answers
Other questions:
  • 1- A __________ is a raised, flat-surfaced area bound on one or more sides by cliffs or steep slopes. A: hill B: plain C: platea
    6·2 answers
  • Why noble gas neon is an unreactive element?
    10·2 answers
  • Compete the following table comparing atomic mass and mass number by enteng Yes or No in each box.​
    14·1 answer
  • The movement of rocks and soil is an example of
    8·2 answers
  • The complete combustion of 1.00 kg of coal releases about 3.0 x 10E7 J of energy. The conversion of 1.00 kg of mass into energy
    13·2 answers
  • Which compound will conduct electricity when it is dissolved in water?
    11·1 answer
  • identify the postulate of Dalton's theory that is violated by the following observations: 59.95% of one sample of titanium dioxi
    7·1 answer
  • The nucleus of a certain atom has seventeen protons and eighteen neutrons. how many electrons does the atom have?
    10·1 answer
  • Please help with the last problem!
    9·2 answers
  • Which substance in the table below will heat up the fastest? water helium diamond or glass
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!