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
gulaghasi [49]
3 years ago
12

What is the result of adding (2.5 x10^3) +(3.5x10^2)

Chemistry
1 answer:
weeeeeb [17]3 years ago
7 0
The answer would be 2,850
You might be interested in
For the following amino acids, draw a triangle around the amine group, draw a square around the carboxyl and circle the side gro
mylen [45]

hooc are carboxyl groups

your r or amino groups are those unique structures which have different atoms in them. your nh2 groups are your hydrogen atoms

4 0
3 years ago
True or false natural elements don't reflect light.
Burka [1]
I think the statement is false. Natural elements do reflect light. Almost everything in this world reflect light. Reflection<span> is when </span>light<span> bounces off an object. Hope this answers the question. Have a nice day.</span>
3 0
3 years ago
Mention 10 products made from crude oil​
garri49 [273]

Answer:

"After crude oil is removed from the ground, it is sent to a refinery where different parts of the crude oil are separated into useable petroleum products. These petroleum products include gasoline, distillates such as diesel fuel and heating oil, jet fuel, petrochemical feedstocks, waxes, lubricating oils, and asphalt.

A U.S 42-gallon barrel of crude oil yields about 45 gallons of petroleum products in U.S. refineries because of refinery processing gain. This increase in volume is similar to what happens to popcorn when it is popped."

"What are petroleum products, and what is petroleum used for?

Petroleum products include transportation fuels, fuel oils for heating and electricity generation, asphalt and road oil, and feedstocks for making the chemicals, plastics, and synthetic materials that are in nearly everything we use. Of the approximately 7.21 billion barrels of total U.S. petroleum consumption in 2016, 47% was motor gasoline (includes ethanol), 20% was distillate fuel (heating oil and diesel fuel), and 8% was jet fuel."

Solvents Diesel fuel Motor Oil Bearing Grease

Ink Floor Wax Ballpoint Pens Football Cleats

Upholstery Sweaters Boats Insecticides

Bicycle Tires Sports Car Bodies Nail Polish Fishing lures

Dresses Tires Golf Bags Perfumes

Cassettes Dishwasher parts Tool Boxes Shoe Polish

Motorcycle Helmet Caulking Petroleum Jelly Transparent Tape

CD Player Faucet Washers Antiseptics Clothesline

Curtains Food Preservatives Basketballs Soap

Vitamin Capsules Antihistamines

4 0
2 years ago
Help! What did I do wrong??
iogann1982 [59]

The molecules  of hydrogen gas that are  formed is  when 48.7 g  of sodium are added to water  is  6.375  x 10²³  molecules


  <u><em>calculation</em></u>

2 Na +2H₂O →  2 NaOH  +H₂

Step 1: find the moles  of sodium (Na)

moles =mass÷   molar mass

from periodic table the molar mass of Na = 23 g/mol

moles= 48.7 g÷ 23 g/mol =2.117 moles

Step 2:use the mole ratio to determine  the  moles of H₂

  from  given equation  Na:H₂ is 2:1

therefore the moles  of H₂ = 2.117 moles x 1/2=1.059 moles

Step 3: find the molecules of H₂ using the Avogadro's law

According  to  Avogadro's  law  1 mole = 6.02 x 10²³ molecules

                                                      1.059 moles = ?  molecules

by cross multiplication

= [(1.059 moles x 6.02 x10²³  molecules) /  1 mole] =6.375  x 10²³  molecules

4 0
3 years ago
What tool do you use to measure mass?
pshichka [43]

Answer: Balance

Explanation:  Mass is the amount of matter contained in a body.

7 0
3 years ago
Other questions:
  • How can you solve this ?
    5·1 answer
  • The most common isotopic forms of hydrogen are ordinary hydrogen (1H) and deuterium (2H), which have percent compositions of 99.
    5·1 answer
  • An atom of helium-4 differs from an atom of lithium-7 in that the atom of helium-4 has?
    14·1 answer
  • Which is the correct chemical formula for hydrogen gas?
    8·1 answer
  • The gas in a 250. mL piston experiences a change in pressure from 1.00 atm to 4.45 atm. What is the new volume (in mL) assuming
    6·1 answer
  • I NEED HELP ASAP!!! PLEASE!!!
    6·2 answers
  • Answer choices:<br> A. Glass<br> B. Plastic <br> C. aluminum <br> D. Foam
    6·2 answers
  • What is the main function of the cell membrane in an animal cell?
    8·2 answers
  • Are the orbits of the planets could you pls help!!!! Pls don't send scam links !! in the solar system as they revolve around the
    8·1 answer
  • Why is the average atomic mass in the periodic table a decimal?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!