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
Irina18 [472]
2 years ago
10

Question - Complete and balance the following chemical equations:

Chemistry
1 answer:
Mekhanik [1.2K]2 years ago
6 0
Answer is because
Please give feedback
You might be interested in
Which organelle's function is CORRECTLY described?
laiz [17]
The correct answer is c.
7 0
2 years ago
Read 2 more answers
A roller coaster starts down a hill at 10 m/s. Three seconds later, its speed is 32 m/s. What is the roller coaster’s accelerati
erica [24]
Final velocity(v) = 32 m/s
Initial velocity(u) = 10 m/s

Using kinematic equation v = u + at, 

32 = 10 + a(3)

32-10
---------  = a
    3

a = 22
      ----
       3

a = 7.3 m/s^2.

Hence acceleration of the roller coaster is 7.3 m/s^2.

Hope this helps!!
8 0
3 years ago
How do you convert grams of zinc to moles of zinc
leva [86]
Take mass of zinc divided by the relative molecular mass - 30 for zinc ( from periodic table)
4 0
3 years ago
Select 2-possible ointment bases. Select one or more:
fredd [130]

Answer:

The correct option is: c. petroleum jelly, d. Polyethylene glycol 4000/600 mixture                

Explanation:

Topical medications are used for the treatment of ailments and include ointments, gels, lotions creams etc. that can applied directly on the surface of the body i.e. skin.

An ointment base medication gets rapidly absorbed into the skin. Some of the examples of <u>ointment bases</u> include water-soluble bases: <u>polyethylene glycol</u>, hydrocarbon bases: <u>petroleum jelly</u>, paraffin wax.

7 0
2 years ago
Coke is an impure form of carbon that is often used in the in-dustrial production of metals from their oxides. if a sample of co
olasank [31]
The reaction equation is:
<span>2CuO(s) + C(s) </span>→ <span>2Cu(s) + CO</span>₂<span>(g)

First, we determine the number of grams present in one ton of copper oxide. This is:
1 ton = 9.09 x 10</span>⁵ g

We convert this into moles by dividing by the molecular mass of copper oxide, which is:
9.09 x 10⁵ / 79.5 = 11,434 moles

Each mole of carbon reduces two moles of copper oxide, so the moles of carbon required are:
11,434 / 2 = 5,717 moles of Carbon required

The mass of carbon is then:
5,717 x 12 = 68,604 grams

The mass of coke is:
68,604 / 0.95 = 72,214 g

The mass of coke required is 7.22 x 10⁴ grams
5 0
3 years ago
Other questions:
  • opisz jak rozdzielisz następujące mieszaniny na składniki z których powstały (nie zapomnijcie użyć nazw metod ): - mąka z groche
    5·1 answer
  • What is the concentration of x2??? in a 0.150 m solution of the diprotic acid h2x? for h2x, ka1=4.5??10???6 and ka2=1.2??10???11
    12·1 answer
  • An electric iron is used to remove wrinkles from clothes the electric iron is made of metal which property of this substance is
    8·1 answer
  • A rock has a mass of 416 grams and when placed in a beaker of water, the level rose to 523 mL. The beaker was originally filled
    10·1 answer
  • Mole fraction of the solute in a 1.00. What is the molal aqueous eqaution?
    10·1 answer
  • Which describes the flow of energy in a food chain? (Which food chain makes sense) A. Sun--&gt;Grass--&gt;Mouse--&gt;Snake B. Gr
    8·1 answer
  • This molecule can be synthesized from an alkyne anion and an alkyl bromide. However, there are two ways in which this molecule c
    8·1 answer
  • Considering the patterns you have noticed in this activity, which statement best explains why a compound with the molecular form
    15·1 answer
  • Gallium is a metallic element in Group III. It has similar properties to aluminium.
    14·1 answer
  • What is the difference between base alkali and acid in chemistry?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!