I'm pretty sure (C) Nitrogen is a compound.
Answer:
Viscosity
Explanation:
The viscosity of the liquid is the independent variable. The flow rate is the dependent variable in this hypothesis.
The statement given is called the hypothesis. It is a form of scientific guess into a phenomenon.
- An independent variable is the cause.
- A dependent variable is the effect produced.
- In this hypothesis, the cause of the various flow rate of the liquid is the viscosity.
- It is therefore the independent variable.
- The flow rate is the dependent variable.
Aldehydes oxidise to form carboxylic acids
Answer:
14.61 g NaCl
Explanation:
Molarity = moles / volume of solution (litres)
0.500 = moles / 0.500 L
moles = 0.25
Molar mass of NaCl is 58.44 g NaCl /1 mol NaCl.
0.25 moles NaCl x 58.44 g NaCl /1 mol NaCl
= 14.61 g NaCl
This reaction above is considered a double-displacement reaction, so letter D. Ag reactions with Cl and Na reacts with NO3, they basically swap during the double replacement.
