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2 years ago

Not related to any subject but how do you tell someone you like them?

Chemistry

1 answer:

Anvisha [2.4K]2 years ago

3 0

Answer:

Don't tell the person,show the person how you feel.

Explanation:

I know It sounds a little awkward but sometimes you just have to show the person how you feel,reach out to the person,find out the person's hobbies and dislikes then write small note pads reminding them of how You feel but don't get so persistent because he/she might find you irritating.

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This equation indicates that the reaction absorbs heat. What is this type of reaction called? H2O + heat → H2 + O2 A. an exother

Anastaziya [24]

The answer is C. an endothermic reaction. The endothermic reaction means this reaction will absorb energy and exothermic reaction means this reaction will release energy.

7 0

2 years ago

About how many times longer than modern humans have hooved mammals lived on earth?

abruzzese [7]

Answer:

I think it should be about maybe the times of the dinosaurs

also I think 23 to 16 billion years

Explanation:

No explanation sorry if im wrong

8 0

2 years ago

A 2.0 mL sample of air in a syringe exerts a pressure of 1.02 atm at 22 C. If that syringe is placed into boiling water at 100 C

emmainna [20.7K]

Answer: The new volume of the air in the syringe is 7.3 mL.

Explanation:

Given: $V_{1}$ = 2.0 mL, $P_{1}$ = 1.02 atm, $T_{1} = 22^{o}C$

$V_{2}$ = ?, $P_{2}$ = 1.27 atm, $T_{2} = 100^{o}C$

Formula used to calculate the new volume in syringe is as follows.

$\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}$

Substitute the values into above formula as follows.

$\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}\\\frac{1.02 atm \times 2.0 mL}{22^{o}C} = \frac{1.27 atm \times V_{1}}{100^{o}C}\\V_{1} = 7.3 mL$

Thus, we can conclude that the new volume of the air in the syringe is 7.3 mL.

6 0

2 years ago

Chlorofluoro carbons are air-polluting agents. They are produced by –

Katen [24]

Answer:

C. Aerosols

Explanation:

8 0

2 years ago

Do Plant cells need to carry out Respiration? Explain

Sidana [21]

Answer:

yes

Explanation:

Although plants use photosynthesis to produce glucose, they use cellular respiration to release energy from the glucose.

3 0

2 years ago