Chemistry High School

the product of 13cm and 5.7cm is correctly reported as
a. 75cm^2
b. 74.0cm^2
c. 74 cm^2
d. 74.1 cm^2

Answers

Answer 1

Answer:

d] 74.1 cm²

Explanation:

Product means that the values given must be multiplied.

13 cm × 5.7 cm = 74.1 cm²

Related Questions

What is an allotrope?
a) The same atom with a different number of neutrons
b) A radioactive substance
c) An alternative form of an element
d) Diamond

Answers

A I think but idrk I just guess sorry if you get it wrong cause of me just be careful I could be wrong

preventive maintenance on a hot water heater includes:

Answers

A water heater can be regularly maintained by flushing it at least two times in a year.

A water heater is a device that is used to heat up water for home use. There are different types of water heaters but they all serve the same purpose at home. In order to maintain maximum efficiency, the water heater must be maintained regularly.

The following are routine maintenance operations on a water heater;

Inspect the heater regularly to ascertain if there are faults.Flush the heater at least two times each year.The anode rod should be changed after a couple of years

Learn more about water heater;https://brainly.com/question/4751630

mass of 0.5 moles of co2

Answers

Answer:

Mass of 0.5 moles of CO2 is 22 gm.

Explanation:

1 mole of CO2 = 44 gm

0.5 mole of CO2 = 0.5 × 44 = 22 gm

What role does each type of chemical play in the firework

Answers

Answer:  Antimony: Antimony is used to create firework glitter effects. Barium: Barium is used to create green colors in fireworks,

Explanation:

Answer:

Explanation:Antimony: Antimony is used to create firework glitter effects. Barium: Barium is used to create green colors in fireworks, 

which term best describes a unit of carbon dioxide?

Answers

Answer:

Molecule.

Explanation:

carbon and fluorine. Based on the bonding, a unit of carbon dioxideis described as a molecule.

Select all the names that could be used to describe the figure
A parallelogram
B quadrilateral
c rhombus
D square
1017 Answered

Answers

Answer:

Quadrilateral because there is no parallel and equal

Please help !!!!!!!!

1) Write the equation for the reaction between the hydrocarbon and bromine using fully displayed formulae for the hydrocarbon and the organic product.

2) The reaction between methane and bromine gas in the presence of UV light also causes the bromine to lose color.

(a) Write an equation for this reaction

(b) This reaction is described as a substitution reaction. whereas the reaction between X and bromine is an addition reaction. Using the equations you have already written , explain the difference between addition and substitution

Answers

1) CH2 (gas) + Br (solid) -> BrC (solid) + H2 (gas)
2) a) CH4 + Br2 -> CH3Br + HBr
2) b) methane + bromine is substitution because one hydrogen atom from methane is replaced by one bromine atom. addition reaction takes place when one molecule combines with another to form a larger molecule so therefore a molecule from X and bromine combine to form XBr.

PLEASE HELP!!


Explain the physical and chemical properties of water, including its different phase changes. Why is water so critical for human life?

Submission

Answers

The physical properties of water is that it is clear, it has no taste. No odour. It freezes at 0 degrees Celsius and boils at 100 degrees Celsius. The different stages of water is liquid, solid and gas. It is liquid at normal state. Ice when solid and steam when it is a gas state.

It is essential for human life because majority of the human body is made out of water. The water in the body allows certain parts and organs to function properly. Without water humans are most like to become I’ll and even dehydrate causing major injuries. It is also essential for the brain to function
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