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3 years ago

What is the voltage across a 100 ohm circuit element that draws a current of 1 A?

Chemistry

1 answer:

andrey2020 [161]3 years ago

7 0

Answer:

8) 45 volt

9) 8 ohms

100 volt

Explanation:

using ohms law all through

V=IR

8) v = 3×15

9) R= 120/15

the last V=100×1

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The reaction of sulfuric acid (H2SO4) with potassium hydroxide (KOH) is described by the equation below. Suppose 0.05 L of KOH w

strojnjashka [21]

From the chemical equation given:

H2SO4+2KOH--->K2SO4+2H2O

the two reactants, H2SO4 and KOH, are in 1:2 stoichiometric ratio.

No. of moles of KOH = 2* no. of moles of H2SO4

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A Canadian dime weighs 1.75g and has a thickness of 1.22mm. A Canadian quarter weighs 4.4g and has a thickness of 1.58mm. You ha

balu736 [363]

The mass of the total number of coins is 1405 g.

Since the thickness of each dime is 1.22 mm and we have each pile being 61.0 mm tall, we need to determine the number of dimes in each pile by dividing the height of the pile by the thickness of each dime.

so, number of dimes in each pile = height of each pile/thickness of each dime = 61.0 mm/1.22 mm = 50 dimes.

Since we have 6 piles, the total number of dimes in all the piles is 6 piles × 50 dimes/pile = 300 dimes.

So, there are 300 dimes in the 6 piles.

Since each dime weighs 1.75 g, 300 dimes will weigh 1.75 g/dime × 300 dimes = 525 g.

In the pile of quarters, we have $ 50 worth of quarters.

Since each quarter = $ 0.25, the number of quarters in that pile is total worth of quarter/value of one quarter = $ 50/$ 0.25 = 200 quarters.

Since each quarter weighs 4.4 g, 200 quarters will weigh 4.4 g/quarter × 200 quarters = 880 g

So, the mass of the total number of coins = total mass of dimes + total mass of quarters = 525 g + 880 g = 1405 g

So, the mass of the total number of coins is 1405 g.

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2 1.1.4 Quiz: Chemistry of Living Systems

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How is electron movement related to covalent bonding in ammonia, NH3?

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How is electron movement related to covalent bonding in ammonia, NH3?

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B) The atomic orbitals overlap and electrons are shared between the atoms forming bonds.
C) A transfer of electrons forms ions which are electrostatically attracted forming bonds.
D) Orbital exchange occurs between the atoms to redistribute the electrons and form bonds.

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ratelena [41]

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