Which of the given statements best represent what to do in the event of a spill of concentrated sulfuric acid.

What are the characteristics of a substance in the liquid state?

lidiya [134]

Made up of particles packed relatively close together, having an indefinite shape but a definite volume

5 0

3 years ago

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An atom has 18 protons, 18 electrons, and 20 neutrons. This atom has _____.

Lera25 [3.4K]

an atom that has 18 protons, 18 neutrons and 20 neutrons. This atom has mass number of 38

mass number is calculated as number of protons + number on neutrons

therefore the mass number of the atom = 18+20= 38

Since the atom has a electronic configuration of 2.8.8,the atom cannot be negatively or positively charged because it is stable.

The atomic number of the atom is 18 since atomic number is equal to number of protons

4 0

3 years ago

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How do scientists determine locations for drilling for natural gas? Where are many natural gas drill sites located? (Site 2)

Alchen [17]

Explanation:

By drilling several cores miles apart , geologist can correlate the rock units and create an image what exists and where below the surface.

Combining this information with rocks exposed to the surface , which can gives clues about rock orientation below, can be a powerful tool to locating oil and gas .

5 0

2 years ago

Summary of a trade-off between. Potential and kinetic energy

uranmaximum [27]

Simply put, Potential energy is the "build up". If I had a ball on the top a 5ft slide, it would have potential energy, as long as it hasn't slid down yet.

If I had another ball on a 10ft slide, it would have twice the potential energy the first ball had.

What comes next is kinetic energy, which is the energy used when the object is moving, like the ball as it goes down the slide. The faster it moves, the more kinetic energy.

Basically, Potential is the "build up" but it does not, I repeat does not move.

Kinetic energy is the use of the "build up" through movement.

7 0

3 years ago

A 0.72 mg sample of phosphorus reacts with bromine to form 10.01 mg of the bromide. part a what is the empirical formula of the

Hatshy [7]

PBr5 You started with 0.72 mg of phosphorus and ended up with 10.01 mg of its bromide. So the amount of bromine is 10.01 - 0.72 = 9.29 mg Now you need to determine the relative number of atoms of each element used. atomic mass of phosphorus = 30.973762 atomic mass of bromine = 79.904 relative atoms of phosphorus = 0.72 / 30.973762 = 0.023245 relative atoms of bromine = 9.29 / 79.904 = 0.116265 Now you need to look for a simple ratio of integers that closely approximates 0.023245 / 0.116265. First we'll divide the larger by the smaller. 0.116265 / 0.023245 = 5.001597 Given how close the value comes to 5. The empirical formula will be PBr5. So for every atom of phosphorus, you need 5 atoms of bromine.

3 0

3 years ago