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
Zielflug [23.3K]
3 years ago
7

Question 5: Causes of Molecular Shape (3 points)

Chemistry
1 answer:
Sonja [21]3 years ago
7 0

Answer:

A. VSEPR theory assumes each atom molecule has a geometry to help minimize the repulsion between the electrons within the valence shell of the central atom.

B. Repulsion determines the molecular shape as the electrons are negativley charged. The negativity makes the atoms spread out as much as possible.

C. Lone electron pairs have greater repelling effects as they are closer to the nucleus of the central atom unlike bonding pairs.

Explanation:

You might be interested in
Which statement below about contrasting Hb and Mb is FALSE?
olchik [2.2K]

Answer:

C. Hb binds O2 more tightly than Mb.

Explanation:

<u>Hb and Mb are both oxygen carrier protiens which contain the heme group. Hb has 4 heme units in 1 moleucle which work via coperative effect. On the other hand, Mb has only one heme unit. </u>

<u>From above theory, statement A and B are correct.</u>

<u>Although the heme group of the Mb is identical to those of Hb, Mb has a higher affinity for carrying oxygen than hemoglobin.</u>

<u>Hence, Statement C is wrong.</u>

Thats why the function of hemoglobin is to transport oxygen and that of myoglobin is to store oxygen.

<u>When a curve is plotted between oxygen accepted and the pressure of the oxygen, Hb shows sigmoidal, whereas Mb shows hyperbolic oxygen saturation curves.</u><u> The statement D is correct.</u>

<u>Bohr effect and various factors decribe the statement : Hb-oxygen binding is dependent on physiological changes in pH, whereas Mb-oxygen binding is not. </u><u>The  statement E is also correct.</u>

7 0
3 years ago
what is the balanced equation for the reaction of solid magnesium metal with oxygen gas to produce solid magnesium oxide
GaryK [48]

Answer:

2Mg + O₂ ⟶ 2MgO

Explanation:

Step 1. Start with the most complicated-looking formula (O₂?).

Put a 1 in front of it.

Mg + 1O₂ ⟶ MgO

Step 2. Balance O.

We have fixed 2 O on the left. We need 2O on the right. Put a 2 in front of MgO.

Mg + 1O₂ ⟶ 2MgO

Step 3. Balance Mg.

We have fixed 2 Mg on the right-hand side. We need 2 Mg atoms on the left. Put a 2 in front of Mg.

2Mg + 1O₂ ⟶ 2MgO

Every formula now has a coefficient. The equation should be balanced. Let’s check.

<u>Atom</u>  <u>On the left</u>  <u>On the righ</u>t

  Mg             2                  2

  O                2                  2

All atoms are balanced.

The balanced equation is

2Mg + O₂ ⟶ 2MgO

4 0
3 years ago
Can you please help. I don't know how to do it.
Rainbow [258]

The area used to be covered by an ocean

3 0
3 years ago
A titration required 42.00 mL of 0.150 M NaOH. How many moles of NaOH is this?
NARA [144]

Answer:

0.006342moles

Explanation:

1000ml of NaOH contain 0.151moles

42ml of NaOH contain (42*0.151)/1000 moles

=0.006342moles

8 0
2 years ago
When you have a cold and are infected with the influenza virus, are you the host or the parasite? Host or Parasite​
ololo11 [35]

Answer:

host

Explanation:

the virus exploits your cells

3 0
3 years ago
Read 2 more answers
Other questions:
  • In which position are the earth, moon, and sun during a new moon?
    14·1 answer
  • In all states of matter, atoms of all elements A. bind together the same way. B. are in constant motion. C. are the same size. D
    14·2 answers
  • 1.Which statement best describes scientific laws
    13·1 answer
  • The is the rate which a substance undergoes a chemical change
    5·1 answer
  • How would I draw this? Thank you in advance!<br> (Z)-4-chloro-3-methylhept-2-ene
    13·1 answer
  • Room temperature is around 25°C. What is the<br> state of matter of bromine?
    9·1 answer
  • Which statement is true of a chemical change?
    13·1 answer
  • Ms. Crawford gave the following instructions to her science class:
    10·2 answers
  • Sea water when compared to pure water will;
    7·2 answers
  • How many grams of NaOH are needed to neutralize 50 grams of H2SO4
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!