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worty [1.4K]
3 years ago
15

Can someone help me I am stuck on this question it would mean the world if u helped me =) have a nice day!

Chemistry
1 answer:
Vinvika [58]3 years ago
6 0

Answer:

C: Plants mostly need air, water and sunlight to grow

Explanation:

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Describe 2 similarities of metals and nonmetals
Gelneren [198K]

Answer:

Maybe they both have valence electrons and can be used in chemical reactions. I could be wrong, I don't have any exact answers.

Explanation:

5 0
4 years ago
What is the change in temperature when 6.00 L of Xenon at 20.0 °C is compressed to 4.00 L.
ValentinkaMS [17]

Answer:

Temperature - 195k = -78°C

The temperature went down by 98°C

Explanation:

7 0
3 years ago
Describe the physical and chemical changes may be affected by temperature
Marta_Voda [28]
Increasing the temperature  will cause chemical changes to occur faster
 decreasing the temperature will cause  chemical changes to occur slower

same with the physical change.
6 0
3 years ago
WHAT IS THE CHEMICAL REACTION
lidiya [134]

Answer:

hi

Explanation:

Chemical reactions are an integral part of technology, of culture, and indeed of life itself. Burning fuels, smelting iron, making glass and pottery, brewing beer, and making wine and cheese are among many examples of activities incorporating chemical reactions that have been known and used for thousands of years. Chemical reactions abound in the geology of Earth, in the atmosphere and oceans, and in a vast array of complicated processes that occur in all living systems.

-facts

3 0
3 years ago
The image above shows a gas held in a chamber with a fixed volume. The gas begins with a temperature 333 K and a pressure of 4.0
lana66690 [7]

Answer:

636.86 K

Explanation:

From the question given above, the following data were obtained:

Initial temperature (T1) = 333 K

Initial pressure (P1) = 4 atm

Final pressure (P2) = 7.65 atm

Final temperature (T2) =?

NOTE: The volume is constant.

Since the volume is constant, we can obtain the new temperature the gas by using the following formula as illustrated below:

P1 /T1 = P2 /T2

4/333 = 7.65/T2

Cross multiply

4 × T2 = 333 × 7.65

4 × T2 = 2547.45

Divide both side by 4

T2 = 2547.45 / 4

T2 = 636.86 K

Therefore, the new temperature of the gas is 636.86 K

8 0
3 years ago
Read 2 more answers
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