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
Umnica [9.8K]
3 years ago
12

As the heart contracts, oxygenated blood is pumped from the left atrium to the left ventricle through which valve?

Chemistry
1 answer:
son4ous [18]3 years ago
7 0

It closes as the left ventricle contracts, preventing blood from returning to the left atrium; thereby, forcing it to exit through the aortic valve into the aorta. The left atrium receives oxygenated blood from the lungs through the pulmonary vein.

You might be interested in
Which statement best describes evidence that a chemical reaction occurs as a cake bakes
ioda

Answer:  the cake rises as gas bubbles form in the cake

Explanation: Had a quizziz quiz on this

7 0
2 years ago
Read 2 more answers
Where does radioactivity come from?
Aleks04 [339]

Radioactivity comes from unstable atoms of certain elements. Radioactivity consists of alpha radiation (2 protons and 2 neutrons), beta radiation (1 electron), or gamma radiation (Electromagnetic photons).

8 0
3 years ago
Read 2 more answers
What causes pressure inside an inflated soccer ball?
ioda

Answer:

A

Explanation:

Ball bounces because of the difference in the air pressure on the outside of the ball, and opposite the point of impact, and the pressure inside of the ball. This means that the inside of the ball now has less space to contain the air molecules contained inside the ball, increasing the pressure inside the ball.

3 0
3 years ago
Read 2 more answers
Boyle's law only works when a gas is kept at a constant temperature. Experimentally this is very tricky as changes in pressure o
Lady bird [3.3K]

The heat that creates this temperature change coming from change in the internal energy of the system as per as first law of thermodynamics.

<h3>What is Boyle's law ?</h3>

A law stating that the pressure of a given mass of an ideal gas is inversely proportional to its volume at a constant temperature.

As we know, Boyle's law only works when the gas is kept at a constant temperature

Here,

When volume of gases decreased, it means work done has occurred on the system, so the work done is used for raising internal energy of the gas and the other is released as the thermal energy.

So,

According to 1st law of thermodynamics,

we know  Q =  ΔU + W  i.e, change in internal energy and work done. So this is a reason. Changing temperature occurs.

Learn more about Internal enrgy here ;

brainly.com/question/11278589

#SPJ1

6 0
1 year ago
What is one differrence between a mixture and a compound
Ann [662]

Answer:

A mixture can contain components in any proportions while a compound contains components in fixed proportions. All components in a mixture do not chemically react, while the components in a compound do react and their original properties are lost.

3 0
3 years ago
Other questions:
  • Which of these is a property of acids?
    15·2 answers
  • 1. From your best fit equation, calculate the pressure of the air inside the test tube if it were
    14·1 answer
  • The volume of a pond being studied for the effects of acid rain is 35 kiloliters (kL). There are 1,000 liters (L) in 1 kL and 1
    5·1 answer
  • The proton,neutron and electrons in the atom of the element represented by the symbol 231Y89 are:
    14·1 answer
  • What steps are performed when naming ionic compounds?
    13·1 answer
  • What compounds break up into ions solution? ​
    12·2 answers
  • Give the percent yield when 162.8 g of CO2 are formed from the reaction of excess amount of
    5·2 answers
  • Electrons have what charge?
    5·2 answers
  • It exists between polar covalent molecules
    12·1 answer
  • Which element has a larger atomic radius than sulfur?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!