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zzz [600]
3 years ago
11

PLEASE HURRY!!! I WILL GIVE BRAINLEIST!!!!

Chemistry
1 answer:
saul85 [17]3 years ago
8 0

Answer:

A I did the exam and I saw A sorry if it is wrong dont have the best of memory

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Can elements be broken down further into other pure substances?
grigory [225]
No they can't because the definition of an element is, something that exists as a single atom
For example, oxygen is an element and can't be broken down anymore however, it can be combined with hydrogen to make water
8 0
4 years ago
A single atom of an element has 11 protons, 11 electrons, and 12 neutrons. Which element is it?
nataly862011 [7]

Answer:

Na

Explanation:

8 0
3 years ago
If 1.00 mol of argon is placed in a 0.500-L container at 29.0 ∘C , what is the difference between the ideal pressure (as predict
Mashcka [7]

Answer:

Ideal ,P=49.52 atm

Real ,P=47.62 atm

Explanation:

Given that

n= 1 mol

V= 0.5 L

T= 29  ∘C = 29 +273 K

T= 302 K

For ideal gas

P V = n R T

P x 0.5 = 1 x 0.0821  x 302

P=49.52 atm

For real gas

\left ( P+\dfrac{an^2}{v^2} \right )\left ( v-nb \right )=nRT

Now by putting the values

\left ( P+\dfrac{1.345\times 1^2}{0.5^2} \right )\left ( 0.5-1\times 0.03219 \right )=1\times 0.0821\times 302

\left ( P+\dfrac{1.345}{0.5^2} \right )=53

P=47.62 atm

4 0
3 years ago
What can we do to fix the climate in greenland?
Crank

Answer:

Greenland is a huge island that is covered with ice, due to warming this ice has begun to melt, reaching a point where more ice is lost per year than is gained.

The temperature levels on earth have increased abnormally since the industrial revolution, that is since CO2 emissions increased. The extra CO2 released into the atmosphere does not allow the heat generated from the earth to be released into space, so the earth has begun to heat up more than normal, causing temperatures to rise.

To avoid this, CO2 emissions should be reduced, this could be achieved by using clean energy to generate electricity, such as solar or wind energy. Also if industries improve their processes to reduce the CO2 they produce. Another way is to reduce livestock farming as this industry also releases high amounts of CO2.

As individuals, from our homes what we can do is to reduce energy consumption if it is generated with fossil fuels, for example turn off the lights if we are not in the rooms, unplug appliances that we are not using, do not use products that come from polluting industries, among others.

7 0
3 years ago
How many O2 moles are needed to react with 12.5 mol of SO2
harkovskaia [24]

Answer:

2.5mol

Explanation:

8 0
3 years ago
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