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In-s [12.5K]
3 years ago
12

An atom has a mass number of 24 and 13 neutrons. what is the atomic number of this atom?

Chemistry
1 answer:
Elodia [21]3 years ago
3 0
do ityou times 24×13=312.
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If you answer this I will rate you 5 star + thank you + the brainliest
QveST [7]

Answer:

See below.

Explanation:

The period is not the same regardless of the string length.

The longer the length the  greater is the period (  the period varies directly with the square root of the length).

The equation of the relationship  is  T = 2π√(l/g)  where l = the length of the string and g is the acceleration due to gravity.

5 0
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Which of the following choices best explains why glaciers move?
irinina [24]
D. Should be correct- the other ones don’t make sense
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Heterogeneous mixtures are throughout, while homogeneous mixtures are throughout.
lys-0071 [83]

Answer:

Ordinary table salt is called sodium chloride. It is considered a substance because it has a uniform and definite composition. All samples of sodium chloride are chemically identical. Water is also a pure substance. Salt easily dissolves in water, but salt water cannot be classified as a substance because its composition can vary. You may dissolve a small amount of salt or a large amount into a given amount of water. A mixture is a physical blend of two or more components, each of which retains its own identity and properties in the mixture . Only the form of the salt is changed when it is dissolved into water. It retains its composition and properties.

Homogeneous Mixtures

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One characteristic of mixtures is that they can be separated into their components. Since each part of the mixture has not reacted with another part of the mixture, the identities of the different materials is unchanged.

5 0
2 years ago
How do you calculate the number of photons having a wavelength of 10.0 micrometers required to produce 1.0 kilojoules of energy
shtirl [24]

To calculate this,

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n = 1000 / 1.9864 10^-26 = 5.04 10^28 photons 

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3 years ago
Frequency of 6.98 x 1013
MAVERICK [17]

Answer:7,070.74

Explanation:because frequency has a lot of energy

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