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1 year ago

Is sugar a compound or a mixture?

Chemistry

2 answers:

pogonyaev1 year ago

5 0

Compound, since it is not mixed with anything.

i just took tests on chemicals and elements, and i remember this.

puteri [66]1 year ago

3 0

Answer:

compound

Explanation:

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Paper towel absorbs water is a physical or chemical change?

Marina CMI [18]

It depends. many of the websites i see answering the questions are all over the place, but good luck.

8 0

3 years ago

How many moles of NaOH are in 27.8 mL of 0.168 M NaOH?

Alex17521 [72]

Your answer would be 0.00285 moles.

8 0

3 years ago

The following thermochemical equation is for the reaction of nitrogen(g) with oxygen(g) to form nitrogen dioxide(g). N2(g) + 2O2

Rzqust [24]

<u>Answer:</u> The mass of nitrogen gas reacted to produce given amount of energy is 5.99 grams.

<u>Explanation:</u>

The given chemical reaction follows:

$N_2(g)+2O_2(g)\rightarrow 2NO_2(g);\Delta H=66.4kJ$

We know that:

Molar mass of nitrogen gas = 28 g/mol

We are given:

Enthalpy change of the reaction = 14.2 kJ

To calculate the mass of nitrogen gas reacted, we use unitary method:

When enthalpy change of the reaction is 66.4 kJ, the mass of nitrogen gas reacted is 28 grams.

So, when enthalpy change of the reaction is 14.2 kJ, the mass of nitrogen gas reacted will be = $\frac{28}{66.4}\times 14.2=5.99g$

Hence, the mass of nitrogen gas reacted to produce given amount of energy is 5.99 grams.

8 0

3 years ago

1. The process by which water molecules in liquid water escape into the air as water vapor is called

seropon [69]

Answer:

water helps u a lot

Explanation:

water vaper is gas that rises up into the air

3 0

2 years ago

Please help me will mark brainliest

LuckyWell [14K]

Answer:

accretion

Explanation:

the coming together and cohesion of matter under the influence of gravitation to form larger bodies.

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2 years ago