Answer:
A. 11
Explanation:
atoms are made of three types of sub atomic particles - protons, neutrons and electrons
Protons are positively charged, electrons are negatively charged and neutrons are neutral.
Protons and neutrons are located inside the nucleus and electrons orbit around the nucleus in energy shells.
Atoms make up an element and atoms are neutral charged with an equal number of protons and electrons. Neutral atom of sodium would therefore have an equal number of positive charges and negative charges.
Since Na has 11 protons, for it to be neutral it would have 11 electrons
Specific heat describes how much heat a substance takes to raise the temperature. Hence, Option (c) is correct
<h3>
What is Specific Heat ?</h3>
Specific heat capacity is the amount of heat energy required to raise the temperature of a substance per unit of mass.
The specific heat capacity of a material is a physical property.
It is also an example of an extensive property since its value is proportional to the size of the system being examined.
Specific heat describes how much heat a substance takes to raise the temperature. Hence, Option (c) is correct
Learn more about Specific heat here ;
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i think it will be A. im not sure
The $ -(Br) at that instant is calculated as follows
BrO3 + 5Br ---> 3Br2 + 3 H2o
by use of reacting ratio BrO3 to Br2 which is 1:3
therefore $ of Br = 3 x (1.5 x10^-2)= 4.5 x10^-2
Answer:
n a communist economy, all economic activities are controlled by government . Such economies are also known as command economy
Explanation:
in this type of economy, private owners are restricted from producing and distributing goods and services , the government controls the entire economic activities
