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2 years ago

Identify three areas of energy research that scientists are working on today.

Chemistry

2 answers:

Illusion [34]2 years ago

3 0

Your answer would be Solar, Hybrid and wind. Hope this helps!

Jet001 [13]2 years ago

3 0

Answer:

wind, solar, bioproduction

Explanation:

The wind energy, since in some places the wind reaches fast velocities, the scientist try to implement new technology to improve how to convert wind energy in electricity for example.

The solar energy, even we have by now the solar panels, there is still an area to research to obtain again the mayor quantity of energy with less materials.

The bioproduction, since the mammals we produce liquid and solid wastes, how to convert it into energy like gas, electricity, etc.

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What is the formula for gunpowder

mrs_skeptik [129]

Here is the chemical equation for gun powder, in it’s simple form:

2 KNO3 + S + 3 C → K2S + N2 + 3 CO2.

This is the same simplified formula, only balanced:

10 KNO3 + 3 S + 8 C → 2 K2CO3 + 3 K2SO4 + 6 CO2 + 5 N2.

3 0

2 years ago

1. Discuss briefly system and surrounding using suitable examples, highlighting heat transfers. 14 marks

lisabon 2012 [21]

A system is a part of the physical universe defined arbitrarily for observation purposes.

Boundaries are a part of the physical universe that are around the system.

In a scientific sense, a system is a part of the physical universe whose boundaries, that is, the limit between the system and its surroundings, are defined arbitrarily for observation purposes.

A system contains at least a model, represented in a phenomenological way, and it can be isolated (no mass nor energy interactions), closed (no mass interactions) or open.

The surroundings are a part of the physical universe that are around the system.

An example is a coffee-maker, where coffee-maker the system and air represents the surroundings, the coffee-maker receives energy from a heat source to warm up itself and releases part of such energy to the air.

We kindly invite to check this question on systems and surroundings: brainly.com/question/6044762

3 0

2 years ago

Table salt contains 39.33 g of sodium per 100 g of salt. The U.S. Food and Drug Administration (FDA) recommends that adults cons

Naya [18.7K]

The individual can consume less than 184.6 g of the snack mix and still be within the FDA limit of salt consumption.

<h3>What is the mass of snack that can be consumed within the limit of sodium intake?</h3>

The mass of the snack mix that the individual can consume and still be within the FDA limit is calculated as follows:

U.S. Food and Drug Administration (FDA) recommends of sodium intake = less than 2.40 g of sodium per day.

Amount of salt in 100 g of snack mix = 1.30 g

Mass of snack that will contain 2.40 g of sodium = 2.40 * 100g/1.30 = 184.6 g of snack mix

Therefore, the individual can consume less than 184.6 of the snack mix and still be within the FDA limit of salt consumption.

In conclusion, the FDA recommends that an individual take in less than 2.40 g of sodium per day from their diet.

Learn more about salts at: brainly.com/question/23463868

#SPJ1

7 0

10 months ago

Rainly

Pani-rosa [81]

Answer:

$b.$ $obtain$

Explanation:

Let us look at all the answers definitions,

Sponsor would not work as it talks about a company offering you something in back for an advertisement.

Obtain would work as it means to acquire something.

Neglect would not work because it means to fail to care for something properly

Dismiss wouldn't work because it means to leave or allow to exit

5 0

2 years ago

A gaseous substance turns directly into a solid. Which term describes this change?

UkoKoshka [18]

Answer:

deposition

Explanation:

Sublmation- solid transforming into a gas, skipping the liquid stage.

eveporation- a liquid transformimg into a gas

melting- a solid transforming into a liquid

deposition- the opposite of sublimation (your anwser)

7 0

2 years ago

Read 2 more answers