3 years ago

The generation of a magnetic field by an electric current is

Chemistry

1 answer:

Lana71 [14]3 years ago

4 0

Answer:

The generation of a magnetic field by an electric current is called electromagnetism.

Explanation:

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The ethic of sustainable development has evolved with a view to _____.

lana [24]

The needs of future generations

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3 years ago

Helppp pleaseee <br> How many hydrogen atoms are indicated by the formula (NH4)2C7H10O2?

Leya [2.2K]

Answer:

The correct answer is - 18.

Explanation:

The number of hydrogen atoms is indicated by the formula (NH4)2C7H10O2 that has two parts (NH4)2 and C7H10O2 then

Number of hydrogen atoms in (NH4)2 = 4*2= 8

number of H atoms in C7H10O2 = 10

then the total number of atoms = 10+8

= 18.

Thus, the correct answer is = 18 hydrogen atoms.

3 0

3 years ago

I'm really confused on this question, pls help

Pepsi [2]

E/square foot -x=30%/419

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3 years ago

1. Convert 421 °C to Kelvin

REY [17]

Answer:

a)694K

Explanation:

Kelvin=degrees+273

T=∅+273

T=421+273

=694K

5 0

3 years ago

If you have 1.4 grams of silver (Ag), how many moles of silver do you have?

creativ13 [48]

Answer: There are 0.0129 moles of silver present in 1.4 grams of silver (Ag).

Explanation:

Given: Mass of silver = 1.4 g

Number of moles is the mass of substance divided by its molar mass.

As molar mass of silver is 107.86 g/mol. Therefore, moles of silver are calculated as follows.

$No. of moles = \frac{mass}{molar mass}\\= \frac{1.4 g}{107.86 g/mol}\\= 0.0129 mol$

Thus, we can conclude that there are 0.0129 moles of silver present in 1.4 grams of silver (Ag).

3 0

3 years ago