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nexus9112 [7]
3 years ago
6

Tarnished silver can be cleaned with toothpaste. Give reason

Chemistry
1 answer:
vfiekz [6]3 years ago
6 0
Toothpaste is an abrasive that contains many things, but mainly phosphates.
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D

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3 years ago
hat range, give the lower value and the higher value, respectively, for the following. (a) How many cubic meters of water are in
torisob [31]

Answer:

a) 9424797000 m3

b) 9424797000000 liters

c) 9424797000000 kg

Explanation

Cylinder has a radius of 1 km= 1000 m.

Area Cylinder = π r^2  =  3,141599* (1000m)^2  = 3141599 m2

a) Volume Cylinder= area x Height=3141599 m2* 3000 m=  9424797000 m3

b) 1000 liters= 1m3,   9424797000 * 1000 = 9424797000000 liters

c) densiy = 1000 kg/m3, or 1 kg/ liter,   mass=  9424797000 lt * 1kg/lt =

9424797000 kg

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4 years ago
Why is a changing ocean temperature of only one or 2 degrees so concerning? Please help!!!!
Svetllana [295]
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Read 2 more answers
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