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
Inga [223]
3 years ago
15

Simplify the numercial expression 13-2x5

Chemistry
2 answers:
nadya68 [22]3 years ago
7 0

Answer:

you multiply 2x5=10 then,

subtract 13-10=3

i have a easier way to do it its called PEMDAS because first you do

Parentheses

Exponents

    Multiply

or Devided (which ever comes first)

    Addition

or Subtract (which ever comes first)

Tema [17]3 years ago
4 0

Answer:

3

Explanation:

2x5 is 10 then 13-10 is 3

You might be interested in
How many ammonium ions and how many sulfate ions are present in an 0.250 mol sample of (nh42so4?
Nastasia [14]
Thw answer is PHj78 JJ CP30 R2D2
7 0
3 years ago
What is the speed of a softball that travels 20 m in 2 sec?
sladkih [1.3K]
The ball travels 10m/s

Speed = distance/time
7 0
3 years ago
Read 2 more answers
A cube has an edge length of 9 cm .
Angelina_Jolie [31]

Answer:

9^3 i think so like 279

Explanation:

blah

5 0
3 years ago
What is the molarity of a solution in which 55. 49 g of calcium chloride is dissolved in enough water to make 500. ml of solutio
PSYCHO15rus [73]

The molarity of a solution in which 55. 49 g of calcium chloride is dissolved in enough water to make 500. ml of solution is 1M.

<h3>What is molarity? </h3>

It is defined as number of moles of solute divided by volume of solution.

Given,

Mass of CaCl2 =55.49g

Molar mass of CaCl2 =40+35+35=110g

Mole= given mass/ molar mass

= 55.49/110=0.50mol.

Now, putting all values we get the molarity

Molarity =0.5×1000/500=1M

Thus, the molarity of given solution is 1M.

learn more about Molarity:

brainly.com/question/26921570

#SPJ4

4 0
1 year ago
Suppose Gabor, a scuba diver, is at a depth of 15m15m. Assume that: The air pressure in his air tract is the same as the net wat
alexandr1967 [171]

Answer:

The ration of molar concentration is "2.5".

Explanation:

The given values are:

Average density of salt water,

= 1.03 \ g/cm^3

Net pressure,

= 2.00 \ atm

Increase in pressure,

= 1.00 \ atm

Now,

The under water pressure will be:

=  \frac{15 \ m}{10}\times 1 \ atm +1 \ atm

=  1.5\times 1+1

=  1.5+1

=  2.5 \ atm

hence,

The ratio will be:

=  \frac{(\frac{n}{V})_{15m} }{(\frac{n}{V})_{surface} }

or,

=  \frac{P}{P_s}

=  \frac{2.5}{1}

=  2.5

7 0
3 years ago
Other questions:
  • A small cube of iron and a large flat sheet of iron contain the same volume. Which one will completely rust first? Explain why.
    5·1 answer
  • What fraction of a 0.5 m acetic acid solution will be in the protonated form at ph 5.1? The pka of acetic acid is 4.8?
    14·1 answer
  • Which statement describes an intensive property of matter?
    15·2 answers
  • You are asked to prepare a ph = 4.00 buffer starting from 1.50 l of 0.0200 m solution of benzoic acid (c6h5cooh and some added s
    11·1 answer
  • Thermal energy changes states because
    15·1 answer
  • Compounds retain most of the properties of their constituent elements.<br> True<br> False
    5·2 answers
  • Iron(II) is available to bond with chloride ion. How many of each type of ion will bond to form an ionic compound?
    7·1 answer
  • ____ Are subatomic particles found in the nucleus and carry positive electrical charge.
    7·2 answers
  • If a bug is traveling 5 meters across the floor in 5 seconds. How fast did it<br> travel?
    14·1 answer
  • in the reaction: mg(s) 2hcl(aq) → mgcl2(aq) h2(g) how does the equilibrium shift if the hcl concentration is increased? to the p
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!