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
Elanso [62]
2 years ago
10

Can someone help me? We literally started this unit yesterday and I got quarantined so I dont have a clue what im doing..

Chemistry
1 answer:
zloy xaker [14]2 years ago
3 0

Answer:

Explanation:

Take out your periodic table.

The choices that have one 1 member of the periodic table on it are elements.

He is the symbol for Helium

O2 oxygen

C3 but this is really odd. It is Carbon but Carbon usually does not  combine in 3s.

The rest are all compounds (they are made up of the elements on the periodic table). For example

H2SO4

is made up of 2 Hydrogens

1 sulfur

4 oxygens.

All the others do exactly the same thing.

You might be interested in
When the following molecular equation is balanced using the smallest possible integer coefficients, the values of these coeffici
tatuchka [14]

The values of the coefficients would be 4, 5, 4, and 6 respectively.

<h3>Balancing chemical equations</h3>

The equation of the reaction can be represented by the following chemical equation:

ammonia (g) + oxygen (g) ---> nitrogen monoxide (g) + water (g)

  4NH_3(g)     +    5O_2(g)        --->           4NO(g)              +  6H_2O(g)

Thus, the coefficient of ammonia will be 4, that of oxygen will be 5, that of nitrogen monoxide will be 4, and that of water will be 6.

More on balancing chemical equations can be found here: brainly.com/question/15052184

#SPJ1

5 0
1 year ago
What is the correct definition of a mixture?
jeka57 [31]

Answer:

a substance made by mixing other substances together.

Explanation:

A mixture is a substance made by mixing two or more substances together.

4 0
2 years ago
Read 2 more answers
Oxygen Supply in Submarines Nuclear submarines can stay under water nearly indefinitely because they can produce their own oxyge
andrew11 [14]

Answer:

0.025 L

Explanation:

The production of oxygen in the electrolysis of water is;

4OH^-(aq) -----> 2H2O(l) + O2(g) + 4e

Since 1 F = 96500C

molar volume of a gas = 22.4 L

From the reaction equation;

4 * 96500 C yields 22.4 L of oxygen

(3 * 60 * 60 *  0.0400) C yields (3 * 60 * 60 *  0.0400) * 22.4/4 * 96500

= 9676.8/386000

= 0.025 L

3 0
2 years ago
Three Chemistry students find a bottle of colorless liquid in the laboratory and each makes a different suggestions about the id
astra-53 [7]

Answer:

and the question is?

Explanation:

3 0
2 years ago
(NH4)2CO3à NH3 + CO2 + H2O For this unbalanced chemical equation, what is the coefficient for carbon dioxide when the equation i
nasty-shy [4]

Answer:

The answer to your question is the letter A. 1

Explanation:

Data

Chemical reaction

                   (NH₄)₂CO₃  ⇒   NH₃  +  CO₂  + H₂O

               Reactants    Elements     Products

                      2            Nitrogen             1

                       1            Carbon                1

                       8           Hydrogen            5

                       3           Oxygen                3

This reaction is unbalanced

                   (NH₄)₂CO₃  ⇒   2NH₃  +  CO₂  + H₂O

               Reactants    Elements     Products

                      2            Nitrogen             2

                       1            Carbon                1

                       8           Hydrogen            8

                       3           Oxygen                3

Now, the reaction is balanced,

The coefficient for Carbon dioxide is 1

6 0
2 years ago
Read 2 more answers
Other questions:
  • How is the number of valence electrons related to the ionization energy of an element?
    11·1 answer
  • how many electrons in an atom can share the quantum numbers n=3, l=2, and ml=2? A.) 2 B.) 6 C.) 4 D.) 8
    6·1 answer
  • On a shade-grown coffee plantation, smaller coffee plants grow in the shade of forest trees. The practice produces fewer coffee
    14·2 answers
  • At 60 °C the value of Kw is 9.5 x 10-14.
    9·1 answer
  • How much iron can be recovered from 25 grams of Fe2O3
    14·2 answers
  • 3. Why do elements in group 1-17 react to form bonds?
    6·1 answer
  • How many joules are required to melt 100 grams of water? The heat of
    5·1 answer
  • Rpd pls ii test :)<br><br> tot ce se afla in poza
    6·1 answer
  • Why is seawater a better conductor of electricity than freshwater?
    12·2 answers
  • 3 What is the number located in the top right hand corner of the atomic symbol of an ion with 16 protons, 17 neutrons and 14 ele
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!