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4 years ago

Look at the chemical equation:

Chemistry

2 answers:

lakkis [162]4 years ago

7 0

Answer:

Explanation:

4 atoms on each size since hydrogen exist as a molecule

saw5 [17]4 years ago

6 0

Answer:

C. 4

Explanation:

From the left hand(reaction) side of the equation hydrogen exist as a molecule in hydrogen sulfide(2H2S) . what this simply means it contain two atoms . Now multiplying the bold number in 2H2S with 2 atoms of hydrogen which constitute a molecule .it will give 4 . On the left Side hydrogen atom(2H2) is 4.

On the right(product) side where Hydrogen appear in the water molecules(2H20), multiply 2 by 2 (2H2) you will get 4 also.

so Hydrogen atom is 4 on both side of the equation.

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Brad is swimming in the ocean on a hot sunny day. He finds the water to be much colder than the sand on the beach, but even thou

Novay_Z [31]

This is due to a physical property called specific heat capacity; the heat capacity of sand is lower than that of water.

The specific heat capacity is known as the amount of energy needed to raise the temperature of 1 g of a substance 1 degree celsius.

Also, the specific heat determines who quickly the temperature of material will raise or fall when it gains or loss heat energy

Furthermore, the specific heat of water is one of the most specific heats of the substances. Therefore, liquid water requires more heat energy to increase its temperature than sand.

So, it is always found that the water is cooler than sand and also water losses its energy slower than sand that the sand be cooler faster than water after sunset.

8 0

4 years ago

Determine the molecular mass of AIPO4

denpristay [2]

Answer: 121.95587 g/mol

Explanation:

The atomic mass of aluminum is 26.98154 g/mol.
The atomic mass of phosphorous is 30.97673 g/mol.
The atomic mass of oxygen is 15.9994 g/mol.

Therefore, the molecular mass is:

$26.98154 +30.97673 +4(15.9994)=\boxed{121.95587 \text{ g/mol}}$

5 0

2 years ago

What is the molar mass for Mg3(PO4)2?

Black_prince [1.1K]

The answer is 262.855g/mol

4 0

4 years ago

When is an electric charges neutral ??

dangina [55]

Answer:

Atoms of matter are electrically neutral because their nuclei contain the same number of protons as there are electrons surrounding the nuclei. Electric current and charged objects involve the separation of some of the negative charge of neutral atoms.

4 0

3 years ago

___C + ___S8 → ___CS2

qwelly [4]

Answer:

4,1,4

Explanation:

Balancing a synthesis equation

6 0

3 years ago