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
sladkih [1.3K]
3 years ago
10

When did the first particles of matter originate

Chemistry
1 answer:
Alisiya [41]3 years ago
5 0
No one is 100% sure when particles of matter originated however scientist believe it had to be some time before the Big Bang
You might be interested in
Write the chemical formulas for the ionic compound vanadium (v) oxide
olya-2409 [2.1K]
V2O5 is the formula. Vanadium has a charge of +5 and oxygen is -2, so to make them equal, you need to double the vanadium charge and multiply the oxygen charge by 5
5 0
3 years ago
How can mechanical waves help in the treatment of cancer?
Andreas93 [3]

Mechanical waves can help in the treatment of cancer due to heat generated by the high frequency waves.

<h3>What is mechanical wave?</h3>

A mechanical wave is a wave that requires material medium for its propagation, example include;

  • water waves,
  • sound waves, and
  • seismic waves.

<h3> Mechanical waves in treatment of cancers</h3>

Sound wave in example of mechanical wave because it requires material medium for its propagation.

High-frequency sound waves (HIFU) is used in the  treatment  of cancer because the strong beam generates heat which is directed to a specific part of a cancer.

The heat generated destroys the cancer cells.

Thus, mechanical waves can help in the treatment of cancer due to heat generated by the high frequency waves.

Learn more about mechanical waves here: brainly.com/question/9242091

#SPJ1

4 0
2 years ago
Which must an animal do in order for cellular respiration to begin?
KatRina [158]

Answer:

Eat food

Explanation:

Food contain protein, carbohydrates, fats etc. These nutrients undergoes metabolic process and produced energy in cellular respiration.

There are two types of respiration:

1. Aerobic respiration  

2. Anaerobic respiration

Aerobic respiration

It is the breakdown of glucose molecule in the presence of oxygen to yield large amount of energy. Water and carbon dioxide are also produced as a byproduct.

Glucose + oxygen → carbon dioxide + water + 38ATP

Anaerobic Respiration

It is the breakdown of glucose molecule in the absence of oxygen and produce small amount of energy. Alcohol or lactic acid and carbon dioxide are also produced as byproducts.  

Glucose→ lactic acid/alcohol + 2ATP + carbon dioxide

This process use respiratory electron transport chain as electron acceptor instead of oxygen. It is mostly occur in prokaryotes. Its main advantage is that it produce energy (ATP) very quickly as compared to aerobic respiration.  

5 0
3 years ago
Read 2 more answers
8
Roman55 [17]

Answer:

305 litres of NO gas will be produced from 916 L of NO₂

Explanation:

Given the balanced equation of the chemical reaction as follows:

3 NO₂ (g) + H₂O( l) —— 2 HNO₃ (l) + NO (g)

Under standard conditions, 3 moles of No₂ will react with 1 mole of water to produce 1 mole of NO gas.

Molar volume of a gas at STP is 22.4 L

Number of moles of NO₂ gas present in 916 L = 916/22.4 = 40.893 moles of NO₂ gas

From the mole ratio of NO₂ to NO in the equation of reaction,

Number of moles of NO that will be produced = 1/3 × 40.893 moles = 13.631 moles of NO gas

Volume of 13.631 moles of NO gas = 13.631 × 22.4

Volume of NO gas produced = 305.334L

Therefore, Volume of NO gas produced from the reaction of 916 L of NO₂ with water = 305 L

5 0
3 years ago
How does the sun energy affect the movement of global winds
Harrizon [31]
The sun affects the movement of global winds by heating up the water at Equator

I hope that the answer is correct
8 0
3 years ago
Read 2 more answers
Other questions:
  • Why is it important to have a controlled experiment
    15·2 answers
  • a water heater contains 58 Gal of water. How many kilowatt-hours of energy are necessary to heat the water in the water heater b
    14·1 answer
  • The heat capacity of a bomb calorimeter was determined by burning 6.79 g of methane (energy of combustion = -802 kJ/mol CH4) in
    10·1 answer
  • What determines your blood cholesterol level?
    10·2 answers
  • The Balmer series consists of the spectral lines from hydrogen for an electron making a transition from an excited state to the
    11·1 answer
  • Matthew records the temperature outside for one day. From 10:00 a.m. to 12:00 p.m., the
    11·1 answer
  • sodium reacts with chlorine gas to form sodium chloride. if you have 60 L of chlorine gas at STP and 30 g of sodium, how many gr
    9·1 answer
  • which feature of the ocean floor includes its deeper parts ? A.Trench B.estuary C.mid-ocean D. contnetal slop
    8·1 answer
  • Birds cause a lot of damage to airplanes every year. To study this problem, the U.S. Air Force invented a chicken cannon. Air Fo
    8·1 answer
  • Choose the three chemical properties of a penny
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!