Recent questions and answers in Chemistry

Recent questions and answers in Chemistry

Balanced chemical equation for octane + oxygen =carbon monixide + water

Mazzy answered Jan 4

by Mazzy

3.1k points

1 answer

14 votes

31.6k views

100 POINTS HELP Which data is an example of quantitative data? A. An apple has a mass of 86.5 g. B. An apple has a sweet scent. C. An apple is red and yellow.

Dakotah North answered Jan 4

by Dakotah North

2.7k points

1 answer

31 votes

437k views

Calculate the number of atoms in a 9.19 x 103 g sample of aluminum. number of atoms:

Racheli answered Jan 4

3.3k points

1 answer

12 votes

463k views

Which statement explains the difference in chloroplasts between the two types of plant cells? A. The leaf cells have larger chloroplasts because leaf cells need more support and a stronger structure. B.

Yonatanmn answered Jan 4

3.2k points

2 answers

1 vote

266k views

How many compounds are found in 2.3 moles of Ca(NO3)2?

Igor Mukhin answered Jan 4

3.0k points

1 answer

8 votes

534k views

Describe briefly a chemical test to identify a sample of each of the following gases in the laboratory. For each test include a short description of the procedure (method) and the expected observations.

Arnoldbird answered Jan 4

2.7k points

1 answer

27 votes

486k views

How many moles of CaCl₂ would there be in 42 mL of 2.09 M aqueous CaCl₂ solution? 3 significant figures

Fandro answered Jan 4

by Fandro

3.2k points

1 answer

23 votes

188k views

What is chemistry? How do we use it in the world?

Brad Cannell answered Jan 4

by Brad Cannell

3.0k points

1 answer

33 votes

51.9k views

17.Which of the following cannot be used to show diffusion?Select one:a. A drop of food coloring added to water.b. Moths attracted to a flame.c. Students leaving school at the end of the day.d. The spreading

Miller Cy Chan answered Jan 4

by Miller Cy Chan

2.8k points

1 answer

32 votes

1.8k views

Boron has a greater atomic radius than fluorine true or false?

Jsheffers answered Jan 4

2.6k points

1 answer

8 votes

84.1k views

Mechanical energy is? (ANSWER FAST) A. Potential energy minus destroyed energy B. The sum, or combination of kinetic and potential energy C. Kinetic energy minus destroyed energy D. Kinetic energy minus

Alex Char answered Jan 4

2.3k points

1 answer

33 votes

200k views

Please help me A sample of a liquid with mass of 8.657g was decomposed into its elements and gave 5.217 g of carbon ,0.9620 g of hydrogen, and 2.478g of oxygen. What is the percentage composition of this

AbdelMalek answered Jan 4

2.7k points

1 answer

41 votes

115k views

Which of the following statement is true? If I have the same number of moles I will have different atomic masses If I have the same number of moles have a different number of atoms If I have the same number

Danny Van Der Kraan answered Jan 4

by Danny Van Der Kraan

3.0k points

1 answer

40 votes

230k views

A reaction mixture is at equilibrium. What happens when the amount of one of the reactants is lowered? aThe amount of the product increases. bThe rate of reverse reaction increases. cThe amount of the

Lumpy answered Jan 4

by Lumpy

3.1k points

1 answer

24 votes

520k views

1) If a car doubles its velocity, then its kinetic energy will become as much CS A) twice B) one-half four times D) one-quarter

Vadziec Poplavsky answered Jan 4

by Vadziec Poplavsky

2.9k points

1 answer

31 votes

427k views

How to describe magnesium and iodine atoms ionize and form the binary compound magnesium iodide

Shender answered Jan 3

2.4k points

1 answer

33 votes

37.6k views

The number of non-polar covalent bonds in the cyclohexane molecule?

Viirus answered Jan 3

by Viirus

2.9k points

1 answer

30 votes

349k views

Convert 8.75X10^-4 to regular number

Jaydeep Shil answered Jan 3

by Jaydeep Shil

3.2k points

1 answer

32 votes

413k views

List two methods that can be used to separate a mixture of iodine crystals and iron fillings

DrGeneral answered Jan 3

2.0k points

1 answer

43 votes

467k views

How do i calculate this?

Ivan Durst answered Jan 3

2.9k points

1 answer

13 votes

138k views

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