Answer:
6.9 (two sig figs)
Explanation:
2.375 + 4.5 = 6.875 = 6.9
When adding or subtracting, sig figs are determined by the least number of digits past the decimal point.
Concentration of the reactant,pressure,surface
area of the reactant and temperatur
Answer:
True (T)
Explanation:
By absorbing or reflecting or letting light pass through, things become opaque, translucent, or transparent.
The role of the gluons is to bind together the quarks that make up protons and neutrons. That is option D.
<h3>What are gluons?</h3>
Gluons are those particles found within an atom that are responsible for binding protons and neutrons together inside the nucleus of an atom.
The gluons are capable of binding the protons and neutrons together by holding together the quarks that makes up protons and neutrons.
These gluons are known to carry a color-anticolor charge which makes up the 9 types of gluons which include:
An atom is the smallest indivisible part of an element that can take part in a chemical reaction.
The proton is the positive particle of an atom which is found within the nucleus.
The neutron is the particle that is found in the nucleus of an atom which doesn't have any charge.
Learn more about atom here:
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Answer:
Explanation:
Hello.
In this case, since the normal boiling point of X is 117.80 °C, the boiling point elevation constant is 1.48 °C*kg*mol⁻¹, the mass of X is 100 g and the boiling point of the mixture of X and KBr boils at 119.3 °C, we can use the following formula:
Whereas the Van't Hoff factor of KBr is 2 as it dissociates into potassium cations and bromide ions; it means that we can compute the molality of the solution:
Next, given the mass of solventin kg (0.1 kg from 100 g), we compute the moles KBr:
Finally, considering the molar mass of KBr (119 g/mol) we compute the mass that was dissolved:
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