Answer:
group two elements are called alkaline earth metals
Explanation:
Because their oxides form in the earth and are water soluble
Answer:
- 278.85 J
Explanation:
Given that:
Pressure = 1.1 atm
The initial volume V₁ = 0.0 L
The final volume V₂ = 2.5 L
The work that takes place in a reaction at constant pressure can be expressed by using the equation:
W = P(V₂ - V₁ )
Since the volume of the gas is expanded from 0 to 2.5 L when 1.1 atm pressure is applied. Then, the work can be given by the expression:
W = - P(V₂ - V₁ )
W = -1.1 atm ( 2.5 - 0.0) L
W = -1.1 atm (2.5 L)
W = -2.75 atm L
Recall that:
1 atm L = 101.4 J
Therefore;
-2.75 atm L = ( -2.75 × 101.4 )J
= -278.85 J
Thus, the work required at the chemical reaction when the pressure applied is 1.1 atm = - 278.85 J
By the definition of a binary compound, the answer is NaOH.
Answer:
A
An organism’s phenotype may influence its ability to find food, and also might affect the organism’s ability to reproduce and pass on favorable alleles.
B.
An organism’s phenotype may influence its ability to produce chromosomes and pass those chromosomes to future generations
C.
An organism’s phenotype may influence its ability to turn on certiain genes necessary for survival.
D.
An organism’s phenotype is not connected with the chances for a species to survive.
Explanation:
Answer:
mixtures
Explanation:
Mixtures contain two or more substances that are relatively easy to separate. The individual components of a mixture can be physically separated from each other.
