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
Vaselesa [24]
3 years ago
13

Help plz I don’t get it

Chemistry
2 answers:
liraira [26]3 years ago
7 0
Answer is b because the other options dont literally make sense to what the question is asked... and even the heart’s function is to pump blood so b is the right answer.
ioda3 years ago
3 0
It’s the last one, help nutrients
You might be interested in
How do you use the changes in the phase of water to keep you cool?
sineoko [7]

Answer:

by freezing

Explanation:

8 0
3 years ago
What is △n for the following equation in relating Kc to Kp?
Nimfa-mama [501]

Answer:

-1  

Explanation:

The relation between Kp and Kc is given below:

K_p= K_c\times (RT)^{\Delta n}

Where,  

Kp is the pressure equilibrium constant

Kc is the molar equilibrium constant

R is gas constant , 0.082057 L atm.mol⁻¹K⁻¹

T is the temperature in Kelvins

Δn = (No. of moles of gaseous products)-(No. of moles of gaseous reactants)

For the first equilibrium reaction:

2Na_{(s)}+2H_2O_{(l)}\rightleftharpoons 2NaOH_{(aq)}+2H_2_{(g)}

<u>Δn = (No. of moles of gaseous products)-(No. of moles of gaseous reactants)  = (2+1)-(2+2) = -1  </u>

<u></u>

7 0
3 years ago
After the 1940s, the invention of _______ permitted wines to be produced in places where the climate was not ideal for wine prod
satela [25.4K]
<span>after the 1940, the infention of : PASTEURIZATION permitted wines to be produced in places where climate was not ideal for wine production after pasteurization process, all the microbes that exist within the wine are eliminated, which will prevent it from rottening. This make it possible to store wine for a long period of time even thought it's not in the harvesting climate</span>
5 0
3 years ago
With the help of word equations identify the products of heating candle wax?​
Y_Kistochka [10]

Explanation:

The word equation for the burning of a candle is wax plus oxygen yields carbon dioxide and water. This is an exothermic reaction that produces both light and heat.

The fuel for a burning candle is the wax. There are many different types of wax with a corresponding number of chemical formulas, but they are all hydrocarbons. Hydrocarbons are molecules made from hydrogen and carbon.

Burning the wax pulls the hydrogen and carbon in the wax apart and recombines them with oxygen from the atmosphere. This is an oxidation reaction. The resulting carbon dioxide and water are gases that disperse in the air.

follow me

3 0
3 years ago
Read 2 more answers
The temperature of a 500. ml sample of gas increases from 150. k to 350. k. what is the final volume of the sample of gas, if th
Andreas93 [3]
<span>Answer: 1170 ml is the final volume of the sample of gas, if the pressure and moles in the container is kept constant.</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • A scuba tank contains a mixture of oxygen (O2) and nitrogen (N2) gas. The oxygen has a partial pressure of PO2=5.62MPa. The tota
    15·2 answers
  • How many moles contain 4.50x10^24 atoms of zinc
    7·1 answer
  • Consider a three sequentially stepped process named as Process A, Process B and Process C. Input comes into Process A. Output fo
    14·1 answer
  • I'll give brainliest to the best answer!!
    11·2 answers
  • How does chemical change affect the composition of matter
    14·1 answer
  • Hydrochloric acid and sodium hydroxide are mixed together to form salt and water. During the reaction, the temperature of the so
    6·1 answer
  • Which of the structure below represents fat
    7·1 answer
  • Who is wise president of india?<br>________________________​
    10·1 answer
  • if excess nitrogen gas reacts with 600 cm³ of hydrogen gas at room conditions , calculate the maximum volume of ammonia produced
    12·1 answer
  • What is the empirical formula of a compound that is 24.42 % calcium, 17.07 % nitrogen, and 58.5% oxygen?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!