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
mario62 [17]
3 years ago
12

I need help with this question please and thank you

Chemistry
1 answer:
Romashka [77]3 years ago
3 0

Answer:

All of the above.

Explanation:

Each element has all of those characteristics. The very definition of an element represents an indivisible unique atom. They are described by a specific symbol on the periodic table.

You might be interested in
Rust forms when the iron is exposed to water and oxygen.<br> True<br> False
Montano1993 [528]
True

explanation:

i looked it up
8 0
3 years ago
Read 2 more answers
In nuclear fission reactions, what causes the atom's nucleus to become<br> unstable
Maurinko [17]

Answer:

the forces i think

Explanation:

8 0
3 years ago
Read 2 more answers
Which pair of substances would most likely result in the production of a gas when reacting with an acid?
vovangra [49]

Answer: metal and carbonate

Explanation:

According to Arrhenius concept, a base is defined as a substance which donates hydroxide ions (OH^-) when dissolved in water and an acid is defined as a substance which donates hydrogen ions (H^+) in water.

An acid is represented as :

HX\rightarrow H^++X^-

1. When metal is treated with an acid such as HCl, if the metal is more reactive than hydrogen displaces hydrogen from its salt solution and thus produce zinc chloride and hydrogen gas.

M+xHCl(aq)\rightarrow MCl_x(aq)+xH_2(g)

2. When carbonates are treated with acid, double displacement takes place ad carbon dioxide is released as a gas.

MCO_3(aq)+xHCl(aq)\rightarrow MCl_x(aq)+xH_2O(l)+CO_2(g)

7 0
4 years ago
Read 2 more answers
Which of the following explains the conservation of mass during cellular respiration?
lord [1]

Answer:

The total number of atoms when glucose and oxygen reacts stays the same when carbondioxide and water are produced.

Explanation:

Chemical reaction:

C₆H₁₂O₆  +  6O₂  →  6CO₂ + 6H₂O

We can see that the number of atoms of each element remain same on both side of reaction so law of conservation of mass is followed by this reaction. Six number of carbon atoms twelve number of hydrogen atoms and eighteen number of oxygen atoms are present on both side.

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.  

8 0
4 years ago
What is the amount of heat required to completely melt a 200
Snowcat [4.5K]
A 200 what? Then I can help!
7 0
3 years ago
Other questions:
  • Write the equation for the production of one hexose sugar molecule from carbon dioxide
    5·2 answers
  • What is the oxidation half-reaction for Fe(s) + 2HCl(aq) to FeCl2(aq) + H2(g)?
    7·1 answer
  • One atom of silicon can properly be combined in a compound with
    5·2 answers
  • Lewis structure of SeO3
    13·1 answer
  • A gram of gasoline produces 45.0kJ of energy when burned. Gasoline has a density of 0.77/gmL. How would you calculate the amount
    7·1 answer
  • Which statement about the fossil record is correct?
    15·2 answers
  • While preforming an experiment involving colors and heat,Susan noticed that the black paper was warmer than the white piece of p
    15·1 answer
  • Help please this is for a test
    9·1 answer
  • HELP ASAP!!!! write 1-3 sentences explaining the purpose of having different ways to describe different quantities of eggs
    12·1 answer
  • This is called what ??
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!