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
OverLord2011 [107]
3 years ago
9

Which of the following is a balanced chemical equation?

Chemistry
1 answer:
oksian1 [2.3K]3 years ago
5 0
The correct answer is D
You might be interested in
An atom that has 13 protons and 15 neutrons is element
ololo11 [35]

Answer:

you are correct

Explanation:

i double checked u are correct :D

4 0
3 years ago
A balance is used to measure mass
FrozenT [24]

if this is true or false its true hope i helped

6 0
3 years ago
a cold glass of water is set outside on a hot day and water droplets develop on the outside of the glass describe whats happenin
notsponge [240]
It is basically condensation   
4 0
3 years ago
Read 2 more answers
in heating a kettle of water on an electric stove, 3.34×10^3 J of thermal energy was provided by the element of the stove. yet,
insens350 [35]

Answer:

The percentage efficiency of the electrical element is approximately 82.186%

Explanation:

The given parameters are;

The thermal energy provided by the stove element, H_{supplied} = 3.34 × 10³ J

The amount thermal energy gained by the kettle, H_{absorbed}  = 5.95 × 10² J

The percentage efficiency of the electrical element in heating the kettle of water, η%, is given as follows;

\eta \% = \dfrac{H_{supplied} - H_{absorbed} }{H_{supplied}}  \times 100

Therefore, we get;

\eta \% = \dfrac{3.34 \times 10^3 - 5.95 \times 10^2}{3.34 \times 10^3}  \times 100 = \dfrac{549}{668} \times 100 \approx 82.186 \%

The percentage efficiency of the electrical element, η% ≈ 82.186%.

4 0
3 years ago
Lead(II) nitrate and ammonium iodide react to form lead(II) iodide and ammonium nitrate according to the reaction Pb(NO3)2(aq)+2
Setler79 [48]

Answer:

a) volume of ammonium iodide required =349 mL

b) the moles of lead iodide formed = 0.0436 mol

Explanation:

The reaction is:

Pb(NO_{3})_{2}+2NH_{4}I -->PbI_{2}+2NH_{4}NO_{3}

It shows that one mole of lead nitrate will react with two moles of ammonium iodide to give one mole of lead iodide.

Let us calculate the moles of lead nitrate taken in the solution.

Moles=molarityX volume (L)

Moles of lead nitrate = 0.360 X 0.121 =0.0436 mol

the moles of ammonium iodide required = 2 X0.0436 = 0.0872 mol

The volume of ammonium iodide required will be:

volume=\frac{moles}{molarity}=\frac{0.0872}{0.250}=0.349L=349mL

the moles of lead iodide formed = moles of lead nitrate taken = 0.0436 mol

7 0
3 years ago
Other questions:
  • Is mass conserved in chemical reactions? Make a prediction based on this question. Be sure to tell how you would determine wheth
    6·1 answer
  • Mercury is an element. Which of the following would be the same for all atoms of mercury?
    6·2 answers
  • How do you perform calculations relating to isotopes. describe please
    7·1 answer
  • A doctor orders 2.0 mg of morphine. The vial of morphine on hand is 40. mg per 4.0 mL. How many milliliters of morphine should y
    9·1 answer
  • Iron(III) oxide and hydrogen react to form iron and water, like this: (s)(g)(s)(g) At a certain temperature, a chemist finds tha
    14·1 answer
  • You make a salt water solution by dissolving salt in water. In order to separate the salt back out of the solution, what should
    10·2 answers
  • . A mixture of methane and air is capable of being ignited only if the mole percent of methane is between 5% and 15%. A mixture
    13·1 answer
  • Why is using dendroclimatology not always a true measure of a past climate?
    5·1 answer
  • We can identify unknown elements in a star by matching the ___________ spectrum of the star to those of known elements. *
    7·1 answer
  • The two camps have the same schedule, the same activities, even the same-looking food. What are all these variables called?​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!