1) Body tube (Head): The body tube connects the eyepiece to the objective lenses. Arm: The arm connects the body tube to the base of the microscope. Coarse adjustment: Brings the specimen into general focus. Fine adjustment: Fine tunes the focus and increases the detail of the specimen.
2)Microscopes are made up of lenses for magnification, each with their own magnification powers. Depending on the type of lens, it will magnify the specimen according to its focal strength.
3)In simple magnification, light from an object passes through a biconvex lens and is bent (refracted) towards your eye. ... The eyepiece lens usually magnifies 10x, and a typical objective lens magnifies 40x. (Microscopes usually come with a set of objective lenses that can be interchanged to vary the magnification.)
Answer:
Hello! Your answer would be, D) HCI
Explanation:
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3, 9, 16 are correct! 17 should be b because buffered means that it resists change in pH
Answer:
Double displacement reaction
Explanation:
Chemical equation:
H₃PO₄ + NaBr → HBr + Na₃PO₄
Balanced chemical equation:
H₃PO₄ + 3NaBr → 3HBr + Na₃PO₄
Step one:
H₃PO₄ + NaBr → HBr + Na₃PO₄
On left side of equation On right side pf equation
H = 3 H = 1
P = 1 P = 1
O = 4 O = 4
Na = 1 Na = 3
Br = 1 Br = 1
Step 2:
H₃PO₄ + NaBr → 3HBr + Na₃PO₄
On left side of equation On right side pf equation
H = 3 H = 3
P = 1 P = 1
O = 4 O = 4
Na = 1 Na = 3
Br = 1 Br = 3
Step 3:
H₃PO₄ + 3NaBr → 3HBr + Na₃PO₄
On left side of equation On right side pf equation
H = 3 H = 3
P = 1 P = 1
O = 4 O = 4
Na = 3 Na = 3
Br = 3 Br = 3
Type of chemical reaction:
The given reaction is double displacement reaction on which cation and anion of both reactants are replace with each other.
