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
Scilla [17]
3 years ago
5

What group does this element belong to?

Chemistry
2 answers:
ivann1987 [24]3 years ago
8 0
Group 1 alkali metals
erica [24]3 years ago
6 0
It belongs to group 1
You might be interested in
Classify each chemical compound listed in the table below.
prisoha [69]

Answer:

Please find attached the table of classification of the chemical compounds, created with Microsoft Word

Explanation:

The given compounds are;

H₂SO₃ is an acid which is known as sulfurous acid

When SO₂ is added to water, we have;

SO₂ + H₂O ⇄ HSO₃ + H⁺

Therefore, H₂SO₃ is ionic

2) HI which is known as hydrogen iodide, dissolves in water as follows

HI (g) + H₂O (l)  ⇄ H₃O⁺(aq) + I⁻(aq)

Therefore, HI is able to donate hydrogen ions therefore, it is both acidic and ionic

3) KI is a salt of the alkali metal, potassium, and iodine which is a group 7 element such that it formed by the transfer of electrons from potassium to iodine making it an ionic compound

KI forms a slightly alkaline solution

4) NaClO₃ comprises of the ionic combination of sodium and chlorate ions which dissolves in water as follows;

NaClO₃ → Na⁺(aq) + ClO₃⁻(aq)

Therefore, NaClO₃ is ionic

NaClO₃ is also a strong oxidizing agent, making a Br∅nsted acid

we have;  

Sulfurous acid (also Sulfuric(IV) acid, Sulphuric acid (UK), Sulphuric(IV) acid (UK)) is the chemical compound with the formula H2SO3. There is no evidence that sulfurous acid exists in solution, but the molecule has been detected in the gas phase.[1] The conjugate bases of this elusive acid are, however, common anions, bisulfite (or hydrogen sulfite) and sulfite.

4 0
3 years ago
A gas occupies 25,3 mL at a pressure of 152 kPa. Find the volume if the pressure is
sleet_krkn [62]

Answer:

This is under gas laws. check it out

3 0
3 years ago
A chemistry student answered 81 questions correctly on a 90-question test. What
nika2105 [10]

Answer:

90%

Explanation:

it will be 81/90 ×100/1

81 over 90 × 100 over 1

8 0
3 years ago
Energy from the sun provides fuel for entire ecosystems true or false​
Gekata [30.6K]

Answer: True

Explanation:

7 0
3 years ago
Calculate the amount in grams of Na2CO3 needed to react with HCL to produce 120g NaCl
worty [1.4K]
Let's start off with the balanced chemical equation:

Na_2CO_{3_{(s)}} + \textbf2HCl_{_{(aq)}}\rightarrow CO_{2_{(g)}} + H_2O_{_{(l)}} + \textbf2NaCl_{_{(aq)}}

Assuming the sodium carbonate is the limiting reagent, look at the coefficients of sodium carbonate and sodium chloride and use those as a ratio of sodium carbonate to sodium chloride: 1:2.

Since you have the required mass of NaCl, convert this to moles.

Assuming you know how to find the molar mass of NaCl:

M_{NaCl} = 58.44g/mol
n = \frac{m}{M}
n_{NaCl} = \frac{120g}{58.44g/mol}
n_{NaCl} = 2.053mol

Using the ratio, since 1 mole of sodium carbonate is required to produce 2 moles of sodium chloride, cross-multiply the ratios:

1:2 = x:2.053mol
2x = 2.053mol
x = 1.027mol

Therefore 1.027 moles of sodium carbonate is required to produce the required amount of sodium chloride. Convert to mass for your final answer:

n_{Na_2CO_3} = 1.027mol
M_{Na_2CO_3} = 105.99g/mol
m = nM
m = (1.027mol)(105.99g/mol)
m_{Na_2CO_3} = 108.85g

Hope this helps :)
6 0
3 years ago
Other questions:
  • For many purposes we can treat methane (CH) as an ideal gas at temperatures above its boiling point of - 161. °C. Suppose the te
    7·1 answer
  • If methane undergo combustion, what mass of methane must be burnt to produce 27.5 g of CO2?
    10·1 answer
  • Convert 100 grams of methane CH4 to number of atoms
    7·1 answer
  • In a chemistry experiment, which word represents the overall change?
    12·2 answers
  • Formula for zinc nitrate​
    9·1 answer
  • According to the law of conservation of mass the mass of reactants will be _____to the mass of products
    5·1 answer
  • Which is true for a substance that absorbs energy?
    13·1 answer
  • What is it called when pollen fertilizes the egg​
    13·2 answers
  • What is Climate Change and how can it effect plants?
    13·2 answers
  • The balanced equation below represents the reaction between carbon and hydrogen to produce
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!