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crimeas [40]
3 years ago
8

How do chemical formulas represent compounds? Help PLEASE

Physics
2 answers:
olya-2409 [2.1K]3 years ago
4 0
Chemical formulas represent compounds by listing the elements and number of atoms in the compound.
Example, H2O. In every water molecule, there are always two hydrogen atoms and one oxygen atom.
FromTheMoon [43]3 years ago
3 0
Water salt atomc chemical symbolos
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Is prey abiotic or biotic?
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A woman drives a golf ball off the tee to a speed of 28 m/s. The mass of the ball is 45 g and tIf the angle of the flight was in
Novay_Z [31]

Answer:

456

Explanation:

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if C is the vector sum of A and B C=A+B what must be true about directions and magnitude of A and B if C=A+B? what must be true
Hunter-Best [27]

The vector sum is the algebraic sum if the two vectors have the same direction.

The sum vector is zero if the two vectors have the same magnitude and opposite direction

Vector addition is a process that can be performed graphically using the parallelogram method, see  attached, where the second vector is placed at the tip of the first and the vector sum goes from the origin of the first vector to the tip of the second.

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case 1. if the two vectors are parallel, the sum vector has the magnitude of the sum of the magnitudes of each vector

case 2. If the two vectors are antiparallel and the magnitude of the two vectors is the same, the sum gives zero.

In summary in the sum of vectors If the vectors are parallel it is reduced to the algebraic sum, also in the case of equal magnitude and opposite direction the sum is the null vector

7 0
3 years ago
Read 2 more answers
Einstein and Lorentz, being avid tennis players, play a fast-paced game on a court where they stand 20.0 m from each other. Bein
igor_vitrenko [27]

Answer:

A) 185.6 J

B) 9.396 x 10^14 J

C) 4x10^7 m/s

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E) 9.09x10^-8 sec

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Explanation:

Detailed explanation and calculation is shown in the image below

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vladimir1956 [14]

Answer:

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3 years ago
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