2.Cooking waffles
3.Baking a cake
Answer:
Explanation:
Density:
Density is equal to the mass of substance divided by its volume.
Units:
SI unit of density is Kg/m3.
Other units are given below,
g/cm3, g/mL , kg/L
Formula:
D=m/v
D= density
m=mass
V=volume
Symbol:
The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density.
Given data:
Mass = 1.060 g
Volume = 1.0 mL
Density in correct number of significant figures= ?
Solution:
d = m/v
d = 1.060 g / 1.0 mL
d = 1.06 g/ mL
The density 1.06 g/mL contain three significant figures Henry should report it 1.1 g/mL having the only one digit after decimal because in given values 1.060 and 1.0 the least number of significant figures after the decimal is 1 that's why the final result must have one significant figure after decimal.
Answer:
C
Explanation: There are three significant figures.
Igneous rocks that cools very quickly when it forms may have a texture that is smooth and shiny with no visible grains.
Igneous rocks also called as magmatic rocks is one of the three main rock type present the other two being sedimentary and metamorphic rocks.These rocks are formed by cooling and solidification of magma or lava .
The magma is derived from from partial melts of rocks which are existing in the earth's crust or mantle.Melting is caused by one of the three processes increase in temperature, change in composition or decrease in pressure.
Igneous rocks are classified based according o their occurrence, texture, chemical composition or mineral content.According to their mode of occurrence they are classified as intrusive or extrusive igneous rocks.
Learn more about igneous rocks,here:
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obelium (No, 102) – Alfred Nobelroentgenium (Rg, 111) – Wilhelm Roentgen (formerly Ununumium)rutherfordium (Rf, 104) – Ernest Rutherford seaborgium (Sg, 106) – Glenn T. Seaborg
ANSWER
empirical formula is the simplest ratio of whole numbers of components making up a compound
molecular formula is the actual composition of components making up a compound
to analyse each statement
A.They are always different for the same compound. -
the empirical formula in some instances can be the same as the molecular formula. therefore this statement is incorrect.
B. Subscripts of empirical formulas can be reduced
empirical formula gives the simplest ratios and the subscripts cannnot be further simplified therefore this is incorrect
C. Molecular formulas can be determined from empirical formulas
using the empirical formula, the molecular formula can be determined. therefore its correct.
D. They both show the actual ratio of elements for a compound
only the molecular formula gives the actual ratio of elements whereas the empirical formula gives the simplest ratio of elements. this statement is incorrect
The correct statement is C.
Answer:
Molecular formulas can be determined from empirical formulas.
Explanation: