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PolarNik [594]
3 years ago
13

Why are predictions of natural hazards important?

Chemistry
2 answers:
vovikov84 [41]3 years ago
8 0

Answer:

Good predictions and warnings save lives.

Explanation:

Predictions and warnings can also reduce damage and economic losses.

ddd [48]3 years ago
6 0
Because, a natural hazard is a threat of a naturally occurring event will have a negative effect on humans.
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Which of the following will increase the volume of a gas?
Dmitry_Shevchenko [17]

Answer:

B. Decreasing the pressure applied to the gas molecules

Explanation:

According to Boyle's Law, the pressure of the gas is inversely proportional to the volume of the gas. So, the option B is correctly implied to it.

Other values such as Temperature, Number of molecules are inversely proportional to the volume of the gas.

Size of the gas molecules is negligible as compared to volume.

7 0
3 years ago
What are the examples of all the non metals in the first twenty element​
agasfer [191]

Answer:

semimetals or metalloids.

Explanation:

5 0
3 years ago
How many moles of oxygen are necessary to react completely with four moles of propane (CH)?
steposvetlana [31]

Answer:

20 mole of oxygen

Explanation:

1 mole of proprane reacts with 5 moles of oxygen so 4 time 5 equals 20

7 0
3 years ago
Sailin' Steve likes to test the buoyancy of different objects. He threw a spherical object into a fluid that has a greater densi
Hunter-Best [27]
The spherical object will float and the square object will sink to the bottom of the fluid as it has greater density. :)
7 0
3 years ago
Calculate the solubility of Mg(OH)2 in water at 25 C. You'll find Ksp data in the ALEKS Data tab. Round your answer to significa
elena-s [515]

Answer:

1.12 × 10⁻⁴ M

Explanation:

Step 1: Write the reaction for the solution of Mg(OH)₂

Mg(OH)₂(s) ⇄ Mg²⁺(aq) + 2 OH⁻(aq)

Step 2: Make an ICE chart

We can relate the solubility product constant (Ksp) with the solubility (S) through an ICE chart.

       Mg(OH)₂(s) ⇄ Mg²⁺(aq) + 2 OH⁻(aq)

I                                0                    0

C                              +S                +2S

E                                S                  2S

The solubility product constant is:

Ksp = 5.61 × 10⁻¹² = [Mg²⁺] × [OH⁻]² = S × (2S)² = 4S³

S = 1.12 × 10⁻⁴ M

8 0
3 years ago
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