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
Brums [2.3K]
3 years ago
8

Which of the following molecules/ions has a pyramid shape?

Chemistry
1 answer:
andreev551 [17]3 years ago
3 0
i think its a right tringle
You might be interested in
Please<br>list uses uses aluminium?​
Fiesta28 [93]

Answer:

We use aluminum almost every day, aluminum can be used for juice boxes, chip bags, cans, foils, electronics, and even our cars have aluminum.

Explanation:

4 0
3 years ago
Read 2 more answers
Why is it necessary to use a new salt bridge for each<br> salt bridge for each electrochemical cell?
Irina-Kira [14]

Answer:

salt bridge balances the charge when electrons move from one half cell to another half cell.

Explanation:

Explanation: A salt bridge balances the charge when electrons move from one half cell to another half cell. During this process the salt bridge uses its electrolyte solution which further helps in balancing charges in both the half cells. ... Therefore, for each electrochemical cell a new salt bridge is used.

6 0
3 years ago
Read 2 more answers
The combustion reaction described in part (b) occurred in a closed room containing 5.56 10g of air
ziro4ka [17]

Answer:

Explanation:

Combustion reaction is given below,

C₂H₅OH(l) + 3O₂(g) ⇒ 2CO₂(g) + 3H₂O(g)

Provided that such a combustion has a normal enthalpy,

ΔH°rxn = -1270 kJ/mol

That would be 1 mol reacting to release of ethanol,

⇒ -1270 kJ of heat

Now,

0.383 Ethanol mol responds to release or unlock,

(c) Determine the final temperature of the air in the room after the combustion.

Given that :

specific heat c = 1.005 J/(g. °C)

m = 5.56 ×10⁴ g

Using the relation:

q = mcΔT

- 486.34 =  5.56 ×10⁴  × 1.005 × ΔT

ΔT= (486.34 × 1000 )/5.56×10⁴  × 1.005

ΔT= 836.88 °C

ΔT= T₂ - T₁

T₂ =  ΔT +  T₁

T₂ = 836.88 °C + 21.7°C

T₂ = 858.58 °C

Therefore, the final temperature of the air in the room after combustion is 858.58 °C

4 0
3 years ago
What is the auf bau principle?
jolli1 [7]
The rule that says electrons are added to the lowest energy level first.
3 0
3 years ago
How is the caloric value of a food sample determined?
bixtya [17]
By multiplying the total amount in grams of a given food sample by energy values established by nutritionists for the particular food type i believe
7 0
3 years ago
Other questions:
  • How do decomposers get energy?
    11·1 answer
  • Contamination of food items by other living organisms is known as?
    10·1 answer
  • I need help plzzz help me!!!
    12·1 answer
  • Calcium nitrate reacts with sodium phosphate to form sodium nitrate and calcium phosphate. Given 96.1 grams of calcium nitrate,
    10·2 answers
  • which two conditions can limit the usefulness of the kinetic-molecular theory in describing gas behavior
    15·1 answer
  • Consider the reaction
    15·1 answer
  • 1. Lithium, water, edible salt, chalk, Carbon, Lime, Nitrogen, Potassium, Oxygen,
    11·1 answer
  • If 42 grams of carbon in 52 grams of oxygen are used how many grams of CO2 will be produced. I need to show work.
    14·1 answer
  • Balance the following:<br> CsH12 +<br> 02<br> CO2+<br> |<br> H20
    9·1 answer
  • 1. How many moles of LiBr are present in 100 mL of 1.25M LIBr solution?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!