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EleoNora [17]
3 years ago
14

What can be done to remove a magnetic force around an electromagnet

Chemistry
1 answer:
Harrizon [31]3 years ago
7 0
D is to stop the current and the force can be removed
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White light, which consists of all frequencies, forms which type of spectrum?
malfutka [58]
Visible light spectrum.

The visible light spectrum is part of the electromagnetic radiation spectrum
5 0
3 years ago
How much energy, in joules, does 150.0 g of water with an initial temperature of 25 C need to absorb be raised to a final temper
satela [25.4K]

Answer:

31395 J

Explanation:

Given data:

mass of water = 150 g

Initial temperature = 25 °C

Final temperature = 75 °C

Energy absorbed = ?

Solution:

Formula:

q = m . c . ΔT

we know that specific heat of water is 4.186 J/g.°C

ΔT = final temperature - initial temperature

ΔT = 75 °C - 25 °C

ΔT = 50 °C

now we will put the values in formula

q = m . c . ΔT

q = 150 g × 4.186 J/g.°C × 50 °C

q = 31395 J

so, 150 g of water need to absorb 31395 J of energy to raise the temperature from 25°C to 75 °C .

5 0
2 years ago
Acceleration usually has the symbol a. It is a vector. What is the correct way
BaLLatris [955]

Answer:

A

Explanation:

it has an arrow symbolizing direction because a vector quantity has both magnitude and direction.

3 0
3 years ago
Read 2 more answers
28 grams of Al react with 30 Oxygen gas (O2) to produce Al Oxide (Al2O3). How many grams of Al Oxide will be produced
Kamila [148]

Answer:

58

Explanation:

Due to conservation of energy, the sum of the reactants = the sum of the products. So 28 + 30 = 58g

8 0
2 years ago
Calculate the mass in grams of 7.88 mol of RbMnO4
vitfil [10]
Molar mass RbMnO₄ = 204.40 g/mol

1 mole ---------- 204.40 g
7.88 mole ------ ?

mass = 7.88 * 204.40 / 1

mass = 1610.672 g

hope this helps!
8 0
3 years ago
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