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Evgesh-ka [11]
3 years ago
14

What is light tell definition ​

Chemistry
2 answers:
swat323 years ago
8 0

Answer:

1..the natural agent that stimulates sight and makes things visible.

2.an expression in someone's eyes indicating a particular emotion or mood.

"a shrewd light entered his eyes"

Feliz [49]3 years ago
3 0

Answer:

1.the natural agent that stimulates sight and makes things visible.

"the light of the sun"

2.an expression in someone's eyes indicating a particular emotion or mood.

"a shrewd light entered his eyes"

Explanation:

pls mark me as bràinliest

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How many co2 molecules are generated from each pyruvate molecule that enters the mitochondrial matrix?
Katena32 [7]
The co2 molecules that are generated from each pyruvate molecule that enters the mithochondria matrix, the number of co2 molecules is Three (3). It has a total of 3 co2 molecules that are generated from each pyruvate molecule that enter the mitochondria. 
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3 years ago
What is definition "scientific question"?
Lemur [1.5K]

Answer:

A scientific question is basically a question that can lead to a hypothesis to help us figure out the observation in science. I hope this helps you

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3 years ago
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Determine the number of charged particles in nucleus of calcium atom then deduce the number of electrons
Dafna1 [17]

Answer:

detail is given below.

Explanation:

The charged particles of nucleus are protons while neutrons are neutral having no charge.

We know that an atom consist of electrons, protons and neutrons. Neutrons and protons are present inside the nucleus while electrons are present out side the nucleus.

Electron has a negative charge and is written as e⁻. The mass of electron is 9.10938356×10⁻³¹ Kg . While mass of proton and neutron is 1.672623×10⁻²⁷Kg and 1.674929×10⁻²⁷ Kg respectively.

Symbol of proton= P⁺  

Symbol of neutron= n⁰  

The number of electron or number of protons are called atomic number while mass number of an atom is sum of protons and neutrons.

one proton contribute 1 amu to the total weight. There are 20 protons and 20 neutrons in Ca thus its atomic mass is 40 amu.

While the atomic number is 20.

3 0
3 years ago
A billboard that stands 30 m above the ground has a gravitational potential energy of 175000 j. What is its mass
ki77a [65]
Potential energy (PEI due to gravity = mgh

Where, m= mass of the billboard, g=gravitational acceleration (9.81 m/s^2), h = height

Therefore,
m= PE/(gh) = 175000/(9.81*30) = 594.63 kg
4 0
3 years ago
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93.2 mL of a 2.03 M potassium fluoride (KF) solution
Marrrta [24]

Answer:

1.98 M

Explanation:

Given data

  • Initial volume (V₁): 93.2 mL
  • Initial concentration (C₁): 2.03 M
  • Volume of water added: 3.92 L

Step 1: Convert V₁ to liters

We will use the relationship 1 L = 1000 mL.

93.2mL \times \frac{1L}{1000mL} = 0.0932 L

Step 2: Calculate the final volume (V₂)

The final volume is the sum of the initial volume and the volume of water.

V_2 = 0.0932L + 3.92 L = 4.01L

Step 3: Calculate the final concentration (C₂)

We will use the dilution rule.

C_1 \times V_1 = C_2 \times V_2\\C_2 = \frac{C_1 \times V_1}{V_2} = \frac{2.03 M \times 3.92L}{4.01L} = 1.98 M

3 0
3 years ago
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