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
White raven [17]
3 years ago
11

Please help me with this

Chemistry
2 answers:
faust18 [17]3 years ago
7 0
I think it is 10x+9 this would be good
Lady bird [3.3K]3 years ago
4 0
10cm*12cm=120cm^2
8cm*10cm=80cm^2
80/2= 40 cm^2
120+40= 160cm^2
It’s 160cm^2
You might be interested in
How many grans of NaoH Are needed to neutralize grans of H2So4​
user100 [1]

Answer :]

to convert from g NaOH to mol NaOH. = 1.48 g NaOH are needed to neutralize the acid.

5 0
2 years ago
What happens when lead nitrate and potassium iodide are mixed?
lisov135 [29]

Answer:

Explanation: A yellow precipitate o lead iodide is formed. see equation of reaction below: 2KI + Pb(NO3)2 → PbI2 + 2K(NO3)2

Th PbI2 is the insoluble yellow precipitate

7 0
3 years ago
How can you balance this chemical equation?HSiCl3+H2O~H10Si10O15+HCL​
qwelly [4]
10HSiCl3 + 15H2O = H10Si10O15 + 30HCl
4 0
3 years ago
The density of pure solid copper is 8.94 g/mL. What volume does 34 g of copper occupy?
patriot [66]

hey there ! :

Density = 8.94 g/mL

mass = 34 g

Volume = ??

Therefore:

D = m / V

8.94 = 34 / V

V = 34 / 8.94

V = 3.803 mL

Hope this helps!

4 0
3 years ago
Which one of the following Acids is most likely to hurt you? Acid A: 1.0 M; Acid B: 0.0001M
vaieri [72.5K]
Acid A, assuming the two acids have the same pH. The M stands for molarity which is how concentrated a substance is (basically the higher the molarity the more concentrated the acid is). However, pH refers to how acidic a substance is. If the two acids have different levels of acidity, the answer may be different.
7 0
3 years ago
Other questions:
  • A binary compound created by reaction of nitrogen and an unknown element E contains 30.46% N and 69.54% E by mass. If the formul
    13·1 answer
  • Isotopes exist because atoms of the same element can have different numbers of
    6·1 answer
  • What is another name for this equipment and what does it do to reduce the impact of coal use?
    9·1 answer
  • How do you the density of a matchbox car which has a mass of 10 grams and the water level in the cylinder rises from 41 ml to 46
    14·1 answer
  • Initially 10.0 mL of water was placed in a graduate cylinder and then a solid metal was immersed in the water in the graduated c
    10·1 answer
  • Please answer asap MUCH NEEDED!!
    15·1 answer
  • Which of the following elements would form the smallest ionic radius and why?
    15·1 answer
  • Need help is label a warm area or is b Orr are they both warm
    6·1 answer
  • Need help asap thanks
    11·2 answers
  • QUESTION 5<br> How can you increase the kinetic energy of the particles in a substance?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!