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
Oduvanchick [21]
3 years ago
10

A hypothetical main group element E reacts with chlorine to form an ionic compound with the formula ECl. The element is a member

of what group in the periodic table.
1A, 6A, 2A, 3A, or 7A?

Chemistry
1 answer:
Ronch [10]3 years ago
7 0
It would be 1A bc then the +1 charge will cancel out chlorine’s -1 charge
You might be interested in
If 190dm of hydrogen gas collected at 20°c and 760mmHg .Calculate it's volume at stp (standard pressure=760mmHg
Andrei [34K]

Answer:

177.1 L

Explanation:

The excersise can be solved, by the Ideal Gases Law.

P . V = n . R . T

In first step we need to determine the moles of gas:

We convert T° from, C° to K → 20°C + 273 = 293K

We convert P from mmHg to atm → 760 mmHg = 1atm

1Dm³ = 1L → 190L

We replace: 190 L . 1 atm = n . 0.082 . 293K

(190L.atm) / 0.082 . 293K = 7.91 moles.

We replace equation at STP conditions (1 atm and 273K)

V = (n . R .T) / P

V = (7.91 mol . 0.082 . 273K) / 1atm = 177.1 L

We can also make a rule of three:

At STP conditions 1 mol of gas occupies 22.4L

Then, 7.91 moles will be contained at (7.91 . 22.4) /1 = 177.1L

3 0
3 years ago
What is the atomic mass of copper?
kipiarov [429]

Answer:

63.546 u

Explanation:

4 0
2 years ago
If you have 400 grams of a substance that decays with a half-life of 14 days, then how much will you have after 56 days? To help
alisha [4.7K]

Answer:

25 grams

Explanation:

You strat off with 400 grams of your substance. By day 14, half has dcayed and you only have 200 grams left. By day 28, there are 100 grams of the substance. On day 42, there are 50 grams left. Finally, on day 56, the substance has been through four half-lives and 25 grams remain.

3 0
2 years ago
Who is all bor.ed bc im bor.ed who wan.na talk UwU
emmainna [20.7K]

Answer:

me ig

Explanation:

4 0
2 years ago
Read 2 more answers
What is the mass of ethanol thats exacly fills a 200.0ml container
yaroslaw [1]

Answer:

158g

Explanation:

3 0
3 years ago
Other questions:
  • What is the density of a block of aluminum that has mass 27 grams of and a volume 10 cm3? 2.7 g/cm3 270 g/cm3 0.37 g/cm3 0.37 cm
    9·2 answers
  • When two hydrogen atoms bond with one oxygen atom to form water what happens to the electrons?
    7·1 answer
  • The mass of a triton is:
    5·1 answer
  • The combined gas law states that
    6·1 answer
  • A student collects 350 mL of a vapor at a temperature of 67°C. The atmospheric pressure at the time of collection is 0.900 atm.
    8·1 answer
  • A closed circle with short lines inside on a topographical map
    14·2 answers
  • Compared with the freezing-point depression of a 0.01 m c6h12o6 solution, the freezing-point depression of a 0.01 m nacl solutio
    7·1 answer
  • I will give brainliest to correct answer - no links
    9·2 answers
  • !!!!! HELP DUE IN 2 MIN !!!
    5·2 answers
  • Which transfers thermal energy in the same way the Suns energy is transferred to Earth?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!