Protons: 29
neutrons : 35
electrons : 29
The answer is: C. A failed constitutional amendment.
The Equal Rights Amendment (ERA) is a proposed amendment to the United States Constitution.
This amedment is designed to guarantee equal legal rights for all American citizens regardless of sex.
Hawaii was the first state to ratify ERA, followed by approximately 30 other states.
During the mid-1970s, a conservative women in opposition eroded support for the Equal Rights Amendment and amadment failed to achieve ratification.
Answer. Speed is the rate of change of position expressed as distance travelled per unit of time
give brainliest if right
It should be mass and speed so they are both incorrect because the height doesn’t mean much, but what matters is how heavy the object is, and how fast it’s going to go.
Answer:
Aluminum
Explanation:
Mass of 
= 1.68 g
Molar mass of = 143.32 g/mol
Thus,
From the reaction below:
3 moles of are produced when 1 mole of 
undergoes reaction.
So,
1 mole of are produced when 
mole of undergoes reaction.
0.01172 mole of are produced when 
mole of undergoes reaction.
Thus, moles of = 0.0039 moles
Let the atomic mass of X = x g/mol
atomic mass of chlorine = 35.5 g/mol
Thus, Molar mass of = x + 3(35.5) g/mol = x + 106.5 g/mol
Moles = 0.0039 moles
Mass = 0.521 g
Thus, molar mass = Given mass/ Moles = 0.521 / 0.0039 = 133.5897 g/mol
So,
x + 106.5 = 133.5897
x = 27.0897 g/mol
This Atomic weight corresponds to Aluminum. Hence, X is aluminum.
