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
Alex787 [66]
2 years ago
12

A student placed two bar magnets under a sheet of paper and added iron filings on top as shown in Figure 1. Which image shows tw

o magnets that were placed with the north and south poles facing each other?

Chemistry
2 answers:
GalinKa [24]2 years ago
6 0

I believe it is Image B

Sedaia [141]2 years ago
5 0

Answer: B

Explanation:

You might be interested in
What is the relationship between the internal energy of a substance and its particle movement?
ss7ja [257]

Answer: The closeness, arrangement and motion of the particles in a substance change when it changes state. Materials are a store of internal energy , due to the motion of particles and the chemical bonds between them. When a substance is heated, its internal energy increases: the movement of its particles increases.

Explanation:

6 0
3 years ago
A 10.0 g pat of butter raise the water level in a graduated cylinder by 11.6 mL. What is the density of the butter
Nina [5.8K]

- formula for density is mass divided by volume

therefore density of butter = 10.0g divided by 11.6ml = 0.8620689 g/cm³ ≈ 0.862 g/cm³ (3sf)

8 0
3 years ago
Write a balanced equation formed when the following elements react with oxygen:a)Zinc
Ainat [17]

Explanation:

a) when zinc burnt in oxygen.

2Zn + O2 -----∆-----> 2ZnO(black residue)

b) when carbon burnt in oxygen.

C+O2----∆---> CO2.

c) when sulphur burnt in oxygen.

S+O2-----∆-----> SO2.

d) when Calcium burnt in oxygen.

2Ca+O2-----∆-----> 2CaO(black residue)

e) when Magnesium burnt in oxygen.

2Mg+O2-----∆----> 2MgO.

f) when sodium burnt in oxygen.

4Na+O2----∆-----> 2Na2O.

hope all these reactions help you.

4 0
3 years ago
How many O2 molecules can be made with the oxygen from 492 g of sodium phosphate?
serg [7]
<span>To answer this question, you need to change the sodium phosphate unit into mol and doing the reaction. Sodium phosphate or Na3PO4  molecular weight is 163.94 or 164 rounded up. Then the amount should be: 492g/ (164g/mol)= 3 mol

For every 1 mol of </span>Na3PO4  there are 4 mol of oxygen element. To made 1 mol of O2 molecule, you will need 2 mol oxygen element. Then the amount of oxygen should be: 4/2 * 3 mol= 6 mol * 6.02 * 10^23= 36.12 * 10*23= 3.61 * 10^24

7 0
3 years ago
Read 2 more answers
Do you think science will end the world or save the world or do neither?
pantera1 [17]

Answer:

This is all up to you

Explanation: This question is up to you because you may think both or just one.

7 0
3 years ago
Other questions:
  • How many moles of carbon (C) atoms are equivalent to 38.1 g C?
    12·1 answer
  • Consider a neutrally charged atom that has an atomic mass number of 80, which includes 35 neutrons. how many electrons does this
    5·2 answers
  • A gas evolved during the fermentation of alcohol had a volume of 19.4 L at 17 °C and 746 mmHg. How many moles of gas were collec
    15·1 answer
  • U
    6·1 answer
  • the speed limit is posted as 35 km/hr . your speedometer reads that you are going 40 miles/hr. are you speeding?
    15·1 answer
  • Which one is a chemical reaction? Why?
    15·1 answer
  • Consider the chemical reaction
    15·1 answer
  • If a small weather balloon with a volume of 58.0 L at a pressure of 1.00 atmosphere was deployed at the edge of Typhoon Odessa,
    7·1 answer
  • What type of molecule is shown below?
    7·1 answer
  • What does chlorination do?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!