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
muminat
3 years ago
13

“Representative elements”? Which groups of the periodic table contain the “representative elements”?

Chemistry
1 answer:
Phoenix [80]3 years ago
4 0

S- and P-Block elements are known as Representative elements.

Groups 1-2 and Groups 13-18

You might be interested in
Which is an example of poor safety practices when working outdoors
kati45 [8]

Answer:

C

Explanation:

u can't touch a chemical with bare skin

7 0
3 years ago
Read 2 more answers
For the reaction below, initially the partial pressure of all 3 gases is 1.0atm. . 2NH3(g)--> N2(g) + 3H2(g) K, 0.83 1. When
erma4kov [3.2K]

Answer:

The reaction would shift toward the reactants

When the reaction reach equilibrium the partial pressure of NH3 will be greater than 1atm

Explanation:

For the reaction:

2NH₃(g) ⇄ N₂(g) + 3H₂(g)

Where K is defined as:

K = \frac{P_{N_{2}}*P_{H_2}^3}{P_{NH_3}^2} = 0.83

As initial pressures of all 3 gases is 1.0atm, reaction quotient, Q, is:

Q = \frac{1atm*{1atm}^3}{1atm^2} = 1

As Q > K, <em>the reaction will produce more NH₃ until Q = K consuming N₂ and H₂.</em>

Thus, there are true:

<h3>The reaction would shift toward the reactants</h3><h3>When the reaction reach equilibrium the partial pressure of NH3 will be greater than 1atm</h3>

<em />

4 0
3 years ago
EARTH SCIENCE: PLEASE HELP ME !!! Which tools do astronomers use to determine the effects of collisions between galaxies? Select
topjm [15]

In studying effects of collisions between galaxies, astronomers usually make use of space telescopes.

Astronomy deals with the study of outer space. The study focuses on planets and other celestial bodies. Generally telescopes are used to study outer space. The particular type of telescope that is used depends on the need.

In studying effects of collisions between galaxies, astronomers usually make use of space telescopes.

Learn more: brainly.com/question/556195

6 0
2 years ago
Which of the situations below describes an ethical dilemma related
fredd [130]

Answer: C

Explanation: Pesticides protect our crops, but some studies show that they cause consumers to gain weight:)

8 0
3 years ago
A chemist measures the energy change ?H during the following reaction:
slamgirl [31]

Answer:

Endothermic

It absorbs heat

1.20 × 10³ kJ

Explanation:

Let's consider the following thermochemical equation.

2 H₂O(l) → 2 H₂(g) + O₂(g)    ΔH = 572 kJ

Since ΔH > 0, the reaction is endothermic, that is, it absorbs heat when H₂O reacts.

572 kJ are absorbed when 36.03 g of water react. The heat absorbed when 75.8 g of H₂O react is:

75.8 g H₂O × (572 kJ/36.03 g H₂O) = 1.20 × 10³ kJ

5 0
3 years ago
Other questions:
  • Which is the smallest part of a compound called?
    7·2 answers
  • What is the volume of 1.9 moles of chlorine gas (Cl2) at standard temperature and pressure (STP)?
    9·2 answers
  • Enlista cuatro compuestos del carbono,naturales y sintéticos, de uso en la vida cotidiana
    13·2 answers
  • Which substance is a compound iron or nitrogen oxide
    10·2 answers
  • Using the table on the right, complete each calculation by typing in the correct answer.
    12·1 answer
  • 1 Srcl (aq) + 1 H,60,(aq) → 2 HCl(aq) + 1 Srso (s)
    9·1 answer
  • Is this an alpha or beta decay?
    5·1 answer
  • What is the possible results of the test of a few drops of a mixture of sodium hydroxide and copper(ii) tetraoxosulphate (vi) so
    5·1 answer
  • 32.What is hardest state of matter? <br> solid<br> 33. What is the softest state of matter?
    15·2 answers
  • Arrange the following bonds in order of increasing ionic character. assign number 1 as the highest and 6 as the lowest. a. carbo
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!