1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
topjm [15]
3 years ago
13

What does the term rate mean

Chemistry
1 answer:
Oliga [24]3 years ago
4 0

Answer:

Explanation:

It is the speed that a chemical reaction proceeds. It is most often referred in terns of amount per unit volume, of a product that is formed in a unit of time or the concentration of a reactant that is consumed in a unit of time.

You might be interested in
Chose the statements that are TRUE from the list below Group of answer choices Ions exist alone in nature We add calcium carbona
kompoz [17]

Answer:

The first option is false, since limestone has a much more acidic pH than granite. The pH of limestone is between 3.5 and 5.0, while the pH of granite is generally around 4.8 and 5.6.

The second option is false. (Traditionally, lactic acidosis has been classified into two categories: type A and type B. Type A is the result of tissue hypoxia and type B occurs with normal tissue perfusion and a adequate global tissue oxygenation)

The third option is false.

In the fourth option we consider that it is true since the hydrofluoric acid is a weak acid. Hydrogen fluoride actually does dissolve quite freely in water, but the H 3 O + and F - ions are strongly attracted to each other and form the strongly bonded pair, H 3 O + · F -

Explanation:

The third option is considered false since the salts contain an acid and a basic part, where one works as an anion and the other as a cation against dissolution, that is why they are not one or the other, but both chemical characteristics make up the Salt.

There are more or less soluble salts than others, and in turn there are binary, quaternary, tertiary or simple salts.

Y como para contribuir más a la explicación, es importante recordar el grupo de los acidos se clasifica en dons grandes familias, en acidos debiles y fuertes.

Un alcalde ph mas debiles seran, por más tiempo cercano al valor ph: 7 esten menos acidificacion tendran, y cuanto más lejos de la neutralidad este es su numero de ph mas fuertes seran.

5 0
4 years ago
BTW IT IS SCIENCE
Sliva [168]
The answer is A warm air rises cool air sinks

4 0
3 years ago
Read 2 more answers
When a 6.00 g sample of KBr is dissolved in water in a calorimeter that has a total heat capacity of 2.71 kJ ⋅ K − 1 , the tempe
Umnica [9.8K]

Answer:

Molar heat enthalpy of KBr = -19.89 kJ/mol

Explanation:

Change in temperature (Δt) = 0.370 K

Heat capacity = 2.71 kJ ⋅ K^-1

Heat absorbed by calorimeter = heat capacity × change in temperature

                                               = 2.71× 0.370

                                               = 1.0027 kJ

Molar mass of KBr = 119 g/mol

No. of moles of KBr = 6.00/119

                               = 0.0504 mol

Heat absorbed by the calorimeter is given by KBr.

Now calculate the heat released by per mol of KBr as follows:

Heat released by per mol of KBr = 1.0027 kJ / 0.0504 mol

                                                   =19.89 kJ/mol

Heat is released therefore, sign will be negative.

Molar heat enthalpy of KBr = -19.89 kJ/mol

4 0
3 years ago
Which substance has a coefficient of 2 when you balance the equation for this redox reaction? cu(s) + hno3(aq) → cu(no3)2(aq) +
Mama L [17]
In this redox reaction, the Cu goes from oxidation state of (0) to (+2), therefore it oxidises. N in HNO₃ goes from oxidation state of (+5) to N in NO with oxidation state of (+2) and becomes reduced. 
Cu acts as the reducing reagent and HNO₃ is the oxidising agent.
oxidation half reaction
Cu ---> Cu²⁺ + 2e  --1)
reduction half reaction 
4H⁺ + 3e + NO₃⁻ ---> NO + 2H₂O --2)
to balance the number of electrons , 1) x3 and 2) x2
3Cu ---> 3Cu²⁺ + 6e
8H⁺ + 6e + 2NO₃⁻ ---> 2NO + 4H₂O 
add the 2 equations 
3Cu + 8H⁺ + 2NO₃⁻ --->  3Cu²⁺ + 2NO + 4H₂O 
add 6 nitrate ions to both sides to add up to 8 and form acid with 8H⁺ ions
3Cu + 8HNO₃ --->  3Cu(NO₃)₂ + 2NO + 4H₂O 
Balanced equation for the redox reaction is as follows;
3Cu(s) + 8HNO₃(aq) → 3Cu(NO₃)₂(aq) + 2NO(g) + 4H₂O<span>(l)

NO has a coefficient of 2

</span>
8 0
4 years ago
4. Why is radiocarbon measurement useless when trying to measure things that died
julsineya [31]

Answer:

Radiocarbon measurement or radiocarbon dating is a method that is used to measure the age of the carbon-based material in living organisms.

Radiocarbon dating is able to estimate age of fossils that are younger than 50,000 years and unable to measure things that died longer than 200,000 years ago because fossils that are too old do not contain carbon or carbon get vanished from too old fossils of organisms. Some of the fossils also get contaminated due to environmental conditions and during teh collection or preservation process.

Thus,  radiocarbon measurement is useless when trying to measure most rocks older than 50,000 years.

4 0
3 years ago
Other questions:
  • Using any data you can find in the ALEKS Data resource, calculate the equilibrium constant at for the following reaction. N2(g)H
    8·1 answer
  • If you had excess chlorine, how many moles of of aluminum chloride could be produced from 10.0 gg of aluminum? Express your answ
    15·1 answer
  • Why is Cobalt (Co) placed before Nickel (Ni) on the Periodic Table of the Elements even though it has a higher average atomic ma
    7·1 answer
  • How do you convert from atoms to moles
    6·2 answers
  • When HCl(g) reacts with NH3(g) to form NH4Cl(s) , 176 kJ of energy are evolved for each mole of HCl(g) that reacts. Write a bala
    11·1 answer
  • Match each body system with its main organ.
    9·1 answer
  • PLEASEHELP WILL MARK BRAINLIEST
    15·2 answers
  • "uses for simple machines" whats a piano that needs to be moved up to a third floor apartment
    6·1 answer
  • An unknown gas effuses at a rate of 2.0 times the rate of Cl₂. What is the molar mass of the unknown gas?
    9·1 answer
  • shi a, mou b, correll jc. association analysis for oxalate concentration in spinach. euphytica. 2016;212(1):17–28
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!