President Jackson was addressing the Native American Indians
Answer:
Kg/L , g/mL
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.
Calcium with water:
When a metal reacts with water( cold water or hot water) then the products formed are metal hydroxide and hydrogen gas.
Metal + steam --------> Metal hydroxide + Hydrogen
Calcium reacts with cold water to form calcium hydroxide and hydrogen gas:
potassium with water.
Potassium reacts violently with cold water to form potassium hydroxide and hydrogen gas:
2K(s)+ 2H2O(l) --------> 2KOH(aq) + H2(g) + heat.
In this reaction so much heat is produced get hydrogen gas formed catches fire and burns explosively.
Question:
<u>1.) How do plant scientists hope to improve plant processes?</u>
Answer:
<u>January 2, 2012. Plant scientists long have known they can alter crops genetically to improve performance; they've been doing it thousands of years.</u>
Question:
<u>2.) How could you find out which resources are the most important for a plant to grow?</u>
Answer:
<u>Three elements, carbon, oxygen and hydrogen, are essential to plant growth and are supplied by air and wa</u><u>ter.</u>
Hope it helps (^^)
# Cary on learning
Answer: The Structure found on sponges is.... Pores.
Explanation: