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Ira Lisetskai [31]
3 years ago
9

Is cutting grass of physical change or chemical change

Chemistry
2 answers:
leva [86]3 years ago
6 0
Cutting the grass would be other irreversible physical changes.
storchak [24]3 years ago
4 0

Answer:

physical

Explanation:

you have to do it ur self

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Which of the following chemicals is implicated in both global warming and ozone depletion?a. chlorofluorocarbons b. sulfur dioxi
Bingel [31]

Answer:

A

Explanation:

Chlorofluorocarbons generally abbreviated as CFCs are a group of organic chemicals used in several household and industrial materials and are responsible for global warming and ozone depletion.

Global warming is the general increase in the atmospheric temperature of the earth continually over the years. It is a direct consequence of climate change which is caused by the continuous release of green house gases into the atmosphere which trap radiated heat from the sun.

Ozone depletion involves anthropogenic activities which lead to decreasing the natural spread of the ozone layer which prevents the direct contact between the sun UV radiation and the earth.

CFCs are implicated in both cases as they are responsible for the two I.e they cause global warming and also deplete the ozone layer. Years back they are basically used in most aerosol cans like perfumes spray, insecticide spray etc. However as a result of the increased knowledge of their dangers, there had been legislations which had cut down on their continuous usage with alternatives being used

7 0
2 years ago
Which formulas could represent the empirical formula and the molecular formula of a given compound?
Alina [70]

Answer:

d

Explanation:

d

7 0
2 years ago
To make a Br2 bond, how many total valence electrons are required?
lapo4ka [179]

Answer:

2. 14

Explanation:

To form Br₂ bond, a total of 14 electrons are needed.

Bromine is an element in the 7th group on the periodic table. It has 7 valence electrons.

  • In forming the bromine gas, the two atoms of bromine shares 7 electrons each.
  • These electrons are from their outermost shell.
  • The outermost shell is the valence shell.
  • So, two atoms donating 7 electrons gives 14 electrons.
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Which component within a nuclear reactor directs neutron bombardment? turbine
Julli [10]
The control rod directs it
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2 years ago
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Sergeu [11.5K]
To add tartness / good luck and will you mark me brainliest please
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3 years ago
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