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
romanna [79]
4 years ago
10

When comparing the two elements Br and Ga, the larger element is GaG a When comparing the two elements Br and Ga, the larger ele

ment is blank based on periodic trends alone. True or false?
Chemistry
1 answer:
dedylja [7]4 years ago
4 0

Answer:

FALSE

Explanation:

Br is <em>bromine</em> with atomic number 35, mass number of 79.904 and belongs to the group 7 elements known as the halogens.

Ga is <em>gallium</em> with atomic number 31, mass number of 69.72 and belongs to the alkaline earth metal i.e the group 3 elements.

From the above and in terms of their mass number, it is evident that Br is the larger element compared to Ga which is lesser than Br. Hence the statement is FALSE

You might be interested in
Write the balanced chemical equation for the following reaction. Also, classify the
tekilochka [14]

Answer:

Explanation:

Al2(SO4)3 + 3BaCl2 ====> 2AlCl3 + 3BaSO4

Sorry forgot to say that it is a double replacement. The Ba goes where there Aluminum is and the Aluminum goes where the Barium is.

The internal balance numbers come from the fact that the ions and complex ions have different valance numbers.

3 0
3 years ago
Why are the spheres representing nitrogen and oxygen different colors
Vlada [557]
Spheres representing Oxygen and Nitrogen are different colors so that it is easier for you to see.
5 0
3 years ago
What happens when an atom gains an electron
inessss [21]
It becomes charged and is called an ion. Gaining an electron gives it a negative charge.
5 0
3 years ago
Read 2 more answers
alculate the standard enthalpy of formation of ethanoic acid given that the standard enthalpy of combustion for carbon is –394 k
agasfer [191]

Answer:

The standard enthalpy of formation of ethanoic acid is -484 kJ/mol.

Explanation:

C(g)+O_2(g)\rightarrow CO_2(g),\Delta H_{1, comb}=-394 kJ/mol...[1]

H_2(g)+\frac{1}{2}O_2(g)\rightarrow H_2O(l),\Delta H_{2, comb}=-286 kJ/mol..[2]

CH_3COOH(l)+2O_2(g)\rightarrow 2CO_2(g)+2H_2O(l),\Delta H_{3, comb}=-876 kJ/mol..[3]

The standard enthalpy of formation of ethanoic acid :

2C(g)+2H_2(g)+O_2(g)\rightarrow CH_3COOH, \Delta H_{4}=?..[4]

Using Hess's law to calculate :

2 × [1] + 2 × [2] - [3] = [4]

\Delta H_4=2\times (-394 kJ/mol)+2\times (-286 kJ/mol) - (-876 kJ/mol)

=\Delta H_4=-484 kJ/mol

The standard enthalpy of formation of ethanoic acid is -484 kJ/mol.

5 0
3 years ago
The Earth's orbit is a(n) ___shape.<br> .
Stels [109]

Answer:

elliptical/ellipse

Explanation:

» <u>Concepts</u>

Astronomer <u>Johannes Kepler</u> discovered and founded his three laws of planetary motion. One of these laws states that the orbit of <u>all</u> planets, including Earth, is in an elliptical shape rather than a circle.

8 0
3 years ago
Other questions:
  • A gas occupies a volume of 458 mL at a pressure of 1.0 1K PA and temperature of 295K. when the pressure is changed the volume be
    15·1 answer
  • Which is stronger - the attractive forces between water molecules and chromium and chloride ions, or the combined ionic bond str
    12·2 answers
  • Where do you think information is coded in a DNA molecule?
    14·2 answers
  • Describing black coles
    7·2 answers
  • ______ are wheels with teeth that fit together.
    5·1 answer
  • 2. According to your observations, which reactant was present for the longest period of time
    11·1 answer
  • Divide the numbers in around the answer to the correct number of significant figures.
    13·1 answer
  • Day 2 code word
    14·1 answer
  • Cavendish’s name for hydrogen gas was "inflammable air." The word inflammable means "to burn." (Note that in is not a prefix in
    7·1 answer
  • In which section(s)/point(s) is the car accelerating?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!