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3 years ago

How to balance a equation

Chemistry

1 answer:

Alona [7]3 years ago

7 0

Answer:

Count the atoms of each element in the reactants and the products then use coefficients. You place them in front of the compounds if needed.

Hope this helps!

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PLS HELP what is 2x10^3 in long form

saul85 [17]

Answer:

2x1000 = 2000

Explanation:

10^3 = 10×10×10 = 1000

exponent , the ^3 means multiply the number by itself 3 times, if it was ^4, it would be 4 times and so forth.

another trick for 10s is just put the 1 and the exponents number of 0's after the 1. so in this case, put three 0's: 1,000

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3 years ago

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The bonds between hydrogen and oxygen in a water molecule are classified as(1) polar covalent

klemol [59]

(1) Ploar covalent. is the answer.

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3 years ago

What is the mass or 1.53 x 10^23 molecules of H2SO4?

Kaylis [27]

Answer:

24.9 g H2SO4

Explanation:

1.53 x 10^23 / 6.02x10^23 * 98.079g = 24.9 g

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3 years ago

What are the three major types of water pollutants? Name and describe a few examples for each one.

andrew11 [14]

Answer:

Explanation:

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3 years ago

A species has the following MO configuration: (σ1s)2(σ1s*)2(σ2s)2(σ2s*)2(σ2p)2(π2p)2. This substance is:_______.

Goshia [24]

Answer : The correct option is, (a) paramagnetic with two unpaired electrons.

Explanation :

According to the molecular orbital theory, the general molecular orbital configuration will be,

$(\sigma_{1s}),(\sigma_{1s}^*),(\sigma_{2s}),(\sigma_{2s}^*),(\sigma_{2p_z}),[(\pi_{2p_x})=(\pi_{2p_y})],[(\pi_{2p_x}^*)=(\pi_{2p_y}^*)],(\sigma_{2p_z}^*)$

As there are 14 electrons present in the given configuration.

The molecular orbital configuration of molecule will be,

$(\sigma_{1s})^2,(\sigma_{1s}^*)^2,(\sigma_{2s})^2,(\sigma_{2s}^*)^2,(\sigma_{2p_z})^2,[(\pi_{2p_x})^1=(\pi_{2p_y})^1],[(\pi_{2p_x}^*)^0=(\pi_{2p_y}^*)^0],(\sigma_{2p_z}^*)^0$

The number of unpaired electron in the given configuration is, 2. So, this is paramagnetic. That means, more the number of unpaired electrons, more paramagnetic.

Hence, the correct option is, (a) paramagnetic with two unpaired electrons.

3 0

3 years ago

How to balance a equation ​

How to balance a equation