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
Makovka662 [10]
3 years ago
7

The properties of two elements are listed below. Which prediction is supported by the information in the table?

Chemistry
2 answers:
weeeeeb [17]3 years ago
4 0

Answer: Option (a) is the correct answer.

Explanation:

An atom with large atomic radius will be able to lose electrons more easily as the valence shell is away from the nucleus. Hence, force of attraction between the valence shell and nucleus will be less.

So, potassium being larger in size will be able to lose electrons easily as compared to bromine.

Hence, we can conclude that K will give up an electron more easily than Br.

zaharov [31]3 years ago
3 0

The first choice is correct. K will give up electrons more easily, due to its smaller electronegativity.

If this helped you, please list me as brainliest!

You might be interested in
Does the amount of Borax added change the slime?
mixer [17]
Yes. Racist it will make it harder to move almost like ooblek
7 0
3 years ago
What is the minimum amount of heat required to completely melt 40.0 grams of ice at its melting point?
elena55 [62]
If 20.0 grams of ice takes about 6680j...then 40.0 grams of ice would take ___ .
6 0
3 years ago
Which contributes to the polarity of a water molecule?
OLEGan [10]
C. no difference in the electronegativity of oxygen and hydrogen
5 0
3 years ago
Read 2 more answers
In a lab, silver nitrate,AgNO₃, is dissolved in water until no solid is observed in the container. Then, a solution of sodium ch
leva [86]

Answer:

The answer to your question is: A, C, E

Explanation:

After reading the information given, we can conclude that both reactants react to form a new solid product and another product that do not precipitate.

The reaction is:

                         AgNO₃ + NaCl   ⇒      AgCl  +  NaNO₃

a. Formation of a solid indicates that a chemical reaction occurred  This option is correct, precipitation indicates that a changed occurred in the solution due to a chemical reaction.

b. The initial disappearance of silver nitrate in water indicates a chemical reaction occurred  No, what is happing is that silver nitrate is dissolving in water, this process is a physical change because matter do not change its nature.

c. The color change of the solution indicates a chemical reaction occurred  This option is true, when a color appears suggest the formation of a new product.

d. A chemical reaction occurred when silver nitrate was added to water

This option is not correct, in this process silver nitrate is dissolving in water but it is not a chemical reaction because matter does not change is nature.

e. A chemical reaction occurred when the solutions were combined  This option is true because silver nitrate and sodium chloride react to form a new product (solid formation and change in color).

f. The lack of temperature change indicates a chemical reaction didn't occur This is false, some reactions do not need a change of color to happen.

6 0
3 years ago
The half-life of radon-222 is 3.8 days. If a sample currently contains 3.1 grams of radon-222, how much radon-222 did this sampl
vodka [1.7K]

The   number  of grams of  radon 222 did it have 15.2  ago was  49.6 grams( answer  C)

 <u>calculation</u>

  • calculate the number of half life it has covered    from   15.2  days to 3.8 days

             that is  divide 15.2/ 3.8 = 4 half life

  •  half  life is time taken for a radio activity  of a specified isotope to fall to half its original mass

therefore  3.8 days ago  it was  3.1 x2 =  6.2 grams

                  7.6 days ago  it was 6.2 x2 = 12.4 grams

                   11.4  days  ago it was 12.4  x2=  24.8  grams

                  15.2  days  ago  it was  24.8 x2=49.6 grams





5 0
3 years ago
Other questions:
  • 2 molecules of Acetaldehyde can only be made from which of these alkenes?
    5·1 answer
  • Which of the compounds above are strong enough acids to react almost completely with a hydroxide ion (pka of h2o = 15.74) or wit
    8·2 answers
  • Calculate the wavelength of a radio wave with a frequency of 93.1 x 10^6 ^-1
    12·2 answers
  • What is the formula of nitrous acid?
    5·2 answers
  • List a homogeneous material that is not a pure substance
    12·1 answer
  • 4. Assuming the reaction below is at equilibrium, which of the following changes will drive the reaction to the left? C(s) + O2(
    6·2 answers
  • What is the empirical formula of a substance that is 53.5% carbon (c), 15.5% hydrogen (h), and 31.1% nitrogen (n) by weight?
    8·2 answers
  • A beaker contains 0.125 L of a 3.00 M solution. If the volume goes up to 0.325 L, what is the new molarity?
    14·1 answer
  • What trend in atomic radius occurs down a group on the periodic table? What causes the trend?
    7·1 answer
  • 10)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!