Answer:
Explanation:
scientific notation of 750000 is
7.5*10^5
If mirrors did not reflect light, then we would be able to see through it.
Answer:
Dalton's 5 postulates
All matter consists of indivisible particles called atoms.
Atoms of the same element are similar in shape and mass, but differ from the atoms of other elements.
Atoms cannot be created or destroyed.
Atoms of different elements may combine with each other in a fixed, simple, whole number ratios to form compound atoms.
Explanation:
Answer:
11.2 M
Explanation:
Given data:
Number of moles = 6.7 mol
Volume of solution = 0.6 L
Concentration /Molarity = ?
Solution:
Molarity:
It is number of moles of solute in to per kg or litters of solution. It can be calculated by the following formula.
Molarity = number of moles / Volume in L
Now we will put the values in formula.
Molarity = 6.7 mol / 0.6 L
Molarity = 11.2 mol/L
Molarity = 11.2 M
Answer:
it will form : -
1. Zinc Carbonate ( ZnCO3 )
2. Sodium Nitrate ( NaNO3 )
Explanation:
When a solution of zinc nitrate is added to a solution of sodium carbonate then it forms Sodium nitrate and Zinc carbonate as product.
it's a double displacement reaction.
here's the balanced equation for above reaction:
Zn(NO3)2 + Na2CO3 =》ZnCO3 + 2 NaNO3
