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
natka813 [3]
2 years ago
11

1

Chemistry
1 answer:
zheka24 [161]2 years ago
3 0
It’s a I think A because they Need light to be a refracting telescope. Making them a refracting telescope
You might be interested in
PLZ HELP!!! WILL GIVE BRAINLIEST!! Balance the following equations to show the law of conservation of mass: (10 points - 1 point
Dafna11 [192]
A - 1 CH4+ 1 O2 = 1 CO2+2 H2
b - 2 Al+3 Cl2 = 2 AlCl3
c - 1 CH2O+ 1 H2 = 1 CH3OH
*The ones that have the coefficient of 1 you can leave blank but if you have to put a number just put 1
4 0
3 years ago
The stability of a nucleus is determined by the ratio of electrons to protons.
Lera25 [3.4K]
B. False
Stability is determined by the ratio of neutrons and protons. Electrons are not in nucleus.
5 0
3 years ago
Show all calculations. 1. 2 C 4 H 10 + 13 O 2 -> 8 CO 2 + 10 H 2 O a) what mass of O 2 will react with 400 g C 4 H 10? b) how
bazaltina [42]

\\ \tt\hookrightarrow 2C_4H_10+13O_2\longrightarrow 8CO_2+10H_2O

  • 13mol of O_2 reacts with 2mols of C_4H_10.
  • 7.5mol of O_2 reacts with 1mol of C_4H_10

No of moles:-

\\ \tt\hookrightarrow \dfrac{Given\:mass}{Molar\:mass}

\\ \tt\hookrightarrow \dfrac{400}{58}

\\ \tt\hookrightarrow 6.89mol

Now

Moles of O_2

\\ \tt\hookrightarrow 7.5(6.89)=51.6mol

Mass of O_2

\\ \tt\hookrightarrow 51.6(32)=1651.2g

4 0
2 years ago
Balance the following equation and find molar ratios from the equation,
Vikki [24]
To balance it, it would be N2 + 3H2 ------> 2NH3. 

for c) it would be 2N2 + 6H2 -------> 4NH3
7 0
2 years ago
Which of these lab safety procedures is INCORRECT?
Ksju [112]

Answer:

D

Explanation:

D is not necessary to follow lab safety in Laboratory

6 0
3 years ago
Other questions:
  • Question 4b, c please.
    10·1 answer
  • Which of the following is used in chemical weapons?
    9·1 answer
  • In a laboratory experiment, John uses a mesh to separate soil particles from water. Which technique of separation is he using?
    14·1 answer
  • When a student mixes 50 mL of 1.0 M HCl and 50 mL of 1.0 M NaOH in a coffee-cup calorimeter, the temperature of the resultant so
    14·2 answers
  • Statement 1: The reaction follows the mass energy equation E= mc". Statement 2: A large amount of energy is produced during the
    10·1 answer
  • Can someone help me, please?
    6·1 answer
  • Can you think of 2 renewable resources and 2 nonrenewable resources
    6·2 answers
  • Give me some examples of why is it important to understand how ocean currents flow.
    14·1 answer
  • What is atomic radius?​
    10·2 answers
  • Calculate the pressure at which the volume of oxygen becomes tripled. if it initial volume at 3.00 atm at 75cm³. if temperature
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!