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
crimeas [40]
4 years ago
15

Which statement about the elements in the periodic table is true?

Chemistry
1 answer:
Mariulka [41]4 years ago
5 0

where are the statements?

You might be interested in
O que acontece com a perspiração celular se, pro algum motivo, uma pessoa foi impedida de executar a respiração pulmonar?
12345 [234]

Answer:

I wish I spoke this languge.

Explanation:

3 0
3 years ago
Do the elements in group 7 of the periodic table react with metals to form covalent compounds, ionic compounds, neither, or both
Vladimir [108]

Answer:Group 1 elements have 1 valence electron, meaning they have 1 extra electron that can easily be donated to an atom in search of 1 more electron. When they give away that extra electron to form an ionic compound, they become more stable.

For example, Group 7A (Group 17) elements have 7 valence electrons, meaning they need 1 extra electron to be stable. Group 1 and 7A elements make splendid ionic compounds.

Explanation:

7 0
2 years ago
Limescale removers contain sulfamic acid, H3NSO3, which reacts with minerals in hard water
I am Lyosha [343]

Answer:

0.375 moles of CaCO₃ are required

Explanation:

Given data:

Number of moles of sulfamic acid = 0.75 mol

Number of moles of calcium carbonate required = ?

Solution:

Chemical equation:

2H₃NSO₃ + CaCO₃     →        Ca(SO₃NH₂)₂ + CO₂ + H₂O

Now we will compare the moles of H₃NSO₃  and CaCO₃ .

                H₃NSO₃           :            CaCO₃  

                     2                 :             1

                   0.75              :           1/2×0.75 = 0.375 mol

Thus, 0.375 moles of CaCO₃ are required.

 

4 0
3 years ago
What amount of energy is required to completely ionize 27.8 grams of carbon atoms in the gas phase (c(g)) if the ionization ener
zlopas [31]
I think it would be 2,510 kJ, or 2,510,000 J.
3 0
3 years ago
What is the chemical formula for H2O?
Bas_tet [7]

Answer:

IUPAC ID

Explanation:

4 0
4 years ago
Read 2 more answers
Other questions:
  • The atomic mass of an element is the weighted average of the(1) number of protons in the isotopes of that element(2) number of n
    12·1 answer
  • Purpose of boiling chip
    10·1 answer
  • For the following reaction, 2.69 grams of methane (CH4) are allowed to react with 30.5 grams of carbon tetrachloride. methane (C
    14·1 answer
  • When a potassium atom forms an ion, it loses one electron. What is the electrical charge of the potassium ion?
    8·2 answers
  • Which of the following generally results when the Senate and the House of Representatives pass different versions of the same bi
    15·1 answer
  • What diagnostic test differentiates proteus and providencia species from other enterobacteriaceae?
    12·1 answer
  • How many grams of diborane will react with 7.5 mol of O2
    8·1 answer
  • Which of these solutes raises the boiling point of water the most?
    6·1 answer
  • What is 680 000 km as an integer?
    10·1 answer
  • You are using your hot air balloon to travel. At constant pressure, you decrease the temperature of the gas by turning down the
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!