(a) an atom with 20 protons and 20 electrons chemPad Help XX" Greek Ca2+ Ca^2+ (b) a sodium atom that has lost 2 electrons chemPad О Help X.X → Greek Na++e¯ Na^++e^- (c) an iodine atom that has gained 1 electron chemPad Help X. x Greek 1- ^1- (d) an oxygen atom with 9 neutrons in its nucleus

Q: difference between physics and chemistry

A: Physics looks for unifying principles; chemistry often focuses on the particulars. Chemist has an…

Q: Draw a visual summary of all the units in grade 12 chemistry

A: A Challenge in Visualizing the Entire Grade 12 Chemistry CurriculumUnfortunately, creating a single,…

Q: The Bay of Fundy in Nova Scotia, Canada is reported to have the largest tides in the world with high…

A: Number of minutes in one hour = 60 minutes Number of seconds in one minute = 60 seconds Number of…

Q: Predict the product(s): CI

A: The given reaction is electrophilic aromatic substitution reaction. It is an Nitration reaction.

Q: The density of silver (Ag) is 10.5 g/mL. Determine the mass in kilograms of Ag that will occupy 345…

A: The density of silver (Ag) given is 3.62 g/mL.The volume of Ag given is 345 mL.To find the mass of…

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A:

Q: If it takes 4.82 minutes to fill a 50.0 gal gas tank, calculate the gasoline flow rate in mL/s.

A:

Q: Complete the expanded notation for 89. 89 =  ( __ X 10) + ( __ x 1)

A: Complete the expanded notation for 89 ?

Q: Select 5 correct answer(s) Cold Sugar Water Oxygen Sleep Carbon dioxide Light Table salt Temperature…

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Q: A piece of metal weighs 8.25 g. When a student places it into a graduated cylinder containing water,…

A: we have to calculate the density of metal

Q: How many inches (in) are in 105 cm? 1 in 2.54 cm 1 cm = 0.01 m 50 in 40.12345 in 105 in 41.3 in

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Q: A certain person had a brain that weighed 1.35 kg and contained 4.11 x 10¹0 cells. Part 1 of 2…

A:

Q: how can i plot this data for concentration with depth?

A: Step 1:It is needed to plot this data for concentration with depth. Step 2:Enter the given data in…

Q: 1 mg is the same as O 1/10 cg O 100 cg 1/1000 kg 10 g

A: The symbol, mg is used to express the mass of substance.

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A:

Q: My height is 4’11

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Q: The average diver consumes about 8.2 L of oxygen per minute. If you swim 8 meters per minute for 692…

A:

Q: 2What is the specific gravity of a 5.0 L syrup weighing 6.565 Kg?   a 1.313   b 0.762   c 0.76…

A: Given is, Mass= 6.565 kg Volume = 5.0 L Density of water = 1 kg/L

Q: 100- 90 80 °F C 70 60H 30 40 20 50 10

A: The measurement of temperature is a fundamental aspect of science and everyday life. Various…

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Q: Burette reading (mL) =

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Q: bleach container costs $5.98 and it has a volume of 2.4 ml what is the cost per gallon? The density…

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Q: Convert 1134 micrograms/cubic meter to ppm

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A: Solution -

Q: Length:3.55 cm Width:2.55 cm Mass:0.338 g   Volume of aluminum foil (cm3)

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Q: None

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A:

Q: A patient is to receive: 600.0 mL IV fluid over 8.00 hours . The drop factor for the tubing is 12.0…

A: Given, 1 drop = 1 gtt The drop factor for tubing = 12.0 gtt/mL = 12.0 drops/mL

Q: 12 grams of water occupies:  1 cm ^ 3; 1.2 cm ^ 3; 12 cm ^ 3; 120 cm ^ 3

A: Given information, mass of water = 12 Volume = ?

Q: Assume the recommended single dose of ibuprofen for children over the age of two is 4.5 mg per pound…

A: Given that -  The assigned dosage of ibuprofen is = 4.5 mg per pound  Here one pound body weight…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.