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
elena55 [62]
3 years ago
9

PLZ HELP ASAP THIS IS DUE LIKE RIGHT NOW

Chemistry
1 answer:
Brrunno [24]3 years ago
4 0

Answer:it's either the first or second one

Explanation:

the layers of the earth

You might be interested in
Molecules are large atoms true or false
Naddik [55]

Answer:

False

Explanation:

Molecules are not more sizable atoms than the average atom. Molecules are compunds of two different symbolic elements, when you combine then you get a molecule. The answer to your question is false because if they were larger molecules, they would be in object around us but molecules are not in all objects around us.

7 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
Ions, isotope, average atomic mass fill in the blank
Zarrin [17]

For Row 1 according to the respective Column is

  • Zn^{2+} , 32 ,65 ,32 ,30 ,34 ,2+

For Row 2 according to the respective Column is

  • Mn, 25, 55, 25, 25,30, 3-

For Row 3 according to the respective Column is

  • P, 15, 31, 15 ,15 ,16 ,0

For Row 4 according to the respective Column is

  • O^{2-} , 8 ,16 ,8 ,6 ,8 , 2-

For Row 5 according to the respective Column is

  • Na, 11, 23, 11, 10, 12, 1-

From the question we are told

Ions, isotope, average atomic mass fill in the blank

Generally

Where

  • Z signifies the Proton Number of the atom
  • A signifies Mass Number of the atom

Therefore

For Row 1 according to the respective Column is

  • Zn^{2+} , 32 ,65 ,32 ,30 ,34 ,2+

For Row 2 according to the respective Column is

  • Mn, 25, 55, 25, 25,30, 3-

For Row 3 according to the respective Column is

  • P, 15, 31, 15 ,15 ,16 ,0

For Row 4 according to the respective Column is

  • O^{2-} , 8 ,16 ,8 ,6 ,8 , 2-

For Row 5 according to the respective Column is

  • Na, 11, 23, 11, 10, 12, 1-

For more information on this visit

brainly.com/question/1641336  

4 0
2 years ago
The law of conservation of mass states that mass is neither created nor destroyed during a chemical reaction. This can be gleane
svet-max [94.6K]

Answer:

Explanation:

The law of conservation of mass states that mass is neither created nor destroyed during a chemical reaction. This can be gleaned from the third postulate in Dalton's series. Magnesium oxide decomposes into magnesium and oxygen. If 4.03 g of magnesium oxide decomposes to form 2.43 g of magnesium, what mass of oxygen gas is also released in the reaction

The word say magnesium oxide decomposes to magnesium and oxygen

the chemical symbols say

MgO-----------> Mg + O2  (since natural oxygen is diatomic)

the balanced  equation says

2MgO-------------->2Mg + O2

4.03 gm----------> 2.43 + ?0 gms

tour high school Algebra I class says

? = 4.03 -2.43 =1.60

your chemical analytcal lab says %mO in MgO = 16/40.3 = 39.7%

your calculator says

39.7/100 X 4.03 = 1.60

all of these prove the law of conservation of mass

3 0
3 years ago
After an organism ingests food, the food moves through a series of _______ by which it is broken down and rearranged to form new
Yakvenalex [24]

Answer:

metabolism

cell division

Explanation:

metabolism is the series of activities that take place in the body of an organism

cell division is the enlargement or division of cell in order for growth to occur

3 0
3 years ago
Other questions:
  • A series circuit has two 5.0-ohm resistors and a power source of 9.0 volts. How will the current be affected and what will it be
    15·1 answer
  • What is a catalyst?
    12·2 answers
  • 7. Disulfur dichloride can be made by reacting chlorine gas with molten sulfur. What is the yield of S2Cl2 expected in a laborat
    13·1 answer
  • Given the following equation: 2 K + Cl2 ---> 2 KCl
    6·1 answer
  • Gay-Lussac's law states:
    11·1 answer
  • Calcium carbonate, when heated, forms calcium oxide and carbon dioxide. 100grams of calcium carbonate will produce 56grams of ca
    12·1 answer
  • What is an isotope? How does one isotope differ from another isotope
    9·2 answers
  • Bună ziua, mă poate ajuta și pe mine cineva, spunândumi din ce substanțe este formată cărămida și care este formula
    10·1 answer
  • Zn + 2HCI -> ZnCl2 + H2
    11·1 answer
  • Which of the following happens to the particles when the temperature of liquid water drops?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!