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Murljashka [212]
3 years ago
15

Brainlist to who gets it right first

Chemistry
2 answers:
madreJ [45]3 years ago
4 0

Answer:

B their larger size . this is right

blondinia [14]3 years ago
4 0

Answer:

The answer is B. here is proof. Plz mark brainliest.

Explanation:

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Nataly [62]
This is biology btw :P arteries carry oxygenized blood away from heart, veins carry deoxygenized blood back to heart, and capillaries are tiny networks of blood vessels that give blood(oxygen) to body tissues
3 0
4 years ago
You've just solved a problem and the answer is the mass of an electron, me=9.11×10−31kilograms. How would you enter this number
mihalych1998 [28]

The mass of an electron can be expressed in the box as \boxed{{m_e} = 9.1 \times {{10}^{ - 31}}{\text{ kg}}}.

Further explanation:

Atom is the smallest particle that can be present in any element. It is also known as the building unit of matter. Each atom has a central part that is known as the atomic nucleus. There are three subatomic particles that constitute the atom. These particles are protons, neutrons, and electrons. The atomic nucleus consists of protons and neutrons, both are collectively called nucleons. Electrons revolve around the nucleus of an atom in definite orbits.

Protons are positively charged subatomic particles, electrons are negatively charged and neutrons have no charge. Since electrons carry a unit negative charge, these create an electric field around them. These also participate in nuclear reactions. The mass of an electron \left( {{m_e}} \right) is 9.1 \times {10^{ - 31}}{\text{ kg}}, that of protons is 1.6726219 \times {10^{ - 27}}{\text{ kg}} and that of neutrons is 1.674927471 \times {10^{ - 27}}{\text{ kg}}. The electrons are responsible for chemical properties of elements. The distribution and arrangement of electrons is used to predict whether the element will be inert or reactive.

Therefore the required answer is \boxed{{m_e} = 9.1 \times {{10}^{ - 31}}{\text{ kg}}}.

Learn more:

  1. Component of John Dalton’s atomic theory: brainly.com/question/2357175
  2. Basis of investigation for the scientists: brainly.com/question/158048

Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Atomic structure

Keywords: atom, matter, atomic nucleus, proton, electron, neutron, subatomic particle, nuclear reactions, electric field, reactive, inert.

4 0
4 years ago
Where is lipase produced
Ierofanga [76]
It is made by cells in your stomach, but the main source is your pancreas, which is located in your digestive tract.

Answer: Pancreas
8 0
3 years ago
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How do you find the average atomic mass?
grin007 [14]

To calculate the average atomic mass, multiply the fraction by the mass number for each isotope, then add them together.

6 0
3 years ago
Box 1
kiruha [24]

Answer:

Explanation:

Mass box A = 10 grams; Mass box B = 5 grams; Mass box C—made of one A and one B How many grams of A would be needed to give the same number of particles: as 7.5 grams of B? 20 as 2.5 grams? 12.5 as 12.5 grams? 37.5 as 1 gram? 2 Count the number of molecules in the diagram of water formation given in the lesson to complete the following ...

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3 years ago
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