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atroni [7]
2 years ago
12

Please help me with number 4 and 5 on my study guide

Chemistry
1 answer:
Shtirlitz [24]2 years ago
5 0

Answer:

help with problem 4

Explanation:

4. protons are equal to atomic numbers. neutrons are atomic mass minus atomic number. electrons are equal to protons.

5. I don't know, sorry.

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Newton's 2nd Law says the acceleration of an object depends on its ______ and the amount of _______ acting on it.
maksim [4K]

Answer:

Newton's 2nd Law says the acceleration of an object depends on its <u>mass </u>and the amount of <u>net force</u> acting on it.

Explanation:

Definition of acceleration:

The acceleration is rate of change of velocity of an object with respect to time.

Formula:

a = Δv/Δt

a = acceleration

Δv = change in velocity

Δt = change in time

Units:

The unit of acceleration is m.s⁻².

Acceleration can also be determine through following formula,

F = m × a

a = F/m

This is the newton's second law:

"The acceleration of an object depends on its <u>mass </u>and the amount of <u>net force</u> acting on it"

The acceleration is depend directly on the force while inversely on the mass.

6 0
3 years ago
How many moles of gas are contained in a rigid, sealed, 5 L container, at 1 atm of pressure and 22 oc?
Ugo [173]
The ideal gas law is: PV=nRT
Pressure
Volume
n= moles
R= gas constant
Temperature in Kelvin
(Degrees in celsius +273)
n= PV/RT
(1.00atm)(5.00L)/(.08026)(295K)= .207mol of gas
7 0
3 years ago
Number 1 is what I need help with
disa [49]
Ow many grams of NH3 can be produced from the reaction of 28g of N2 and 25g 
7 0
3 years ago
A sodium atom and sodium ion have the same
Ilia_Sergeevich [38]

<u>Answer:</u>

a) number of neutrons

<u>Explanation:</u>

A sodium ion is formed when an electron is removed from a sodium atom. This means that the atom's number of electrons changes, but the number of neutrons remains unchanged.

However, as the number of electrons changes, the electric charge and the electronic structure change, which means that a sodium atom and a sodium ion do not have the same number of electrons, nor do they have the same electric charge or electronic structure.

Therefore, option a) is the correct option.

3 0
1 year ago
Calcium bromide has a formula of CaBr2. Why are there two
tamaranim1 [39]
Bromide gives away 1 electron (valency of 1) and Ca wants to gain 2 electrons (valency of 2) therefore 2 Br ions are needed
6 0
3 years ago
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