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
AveGali [126]
2 years ago
15

How long is a bench? Select the best estimate.

Chemistry
1 answer:
Alenkinab [10]2 years ago
8 0

Answer:

4 meters

Explanation:

4 centimeters and millimeters are too small, while 4 kilometers is too large.

You might be interested in
Why is acetic acid written as hc2h3o2 rather than c2h4o2?
Naddik [55]
<span>Acetic acid is under the family of carboxylic acids which has a carboxyl group –COOH bond attached to the alkyl group. Alkyl group can be methyl (CH3-), ethyl (CH3CH2-) and so on. The term acetic also means methyl. So combining the two gives CH3COOH or HCH3CO2. The H before the C in <u>H</u>CH3CO2 means that it is the H attached to the O in the carboxyl group –COOH. You cannot write it as C2H4O2 because it would represent a different compound.</span>
8 0
3 years ago
What is the chemical formula for nickel (ii) hypochlorite?
gtnhenbr [62]
The   chemical  formula  of  nickel  (ii) hypochlorite  is Ni(CIO)2. Nickel (II)   has a  charge  of  +2  while (CIO-)  which  is  a  poly  atomic ion  of  chlorine and  oxygen has  a  charge  of   -1.  After  balancing  the  charge  of    nickel with  that   of  CIO- you  get  the  chemical  formula  as  Ni(CIO)2.
3 0
3 years ago
A binding protein binds to a ligand l with a kd of 400 nm. what is the concentration of ligand when y is (a) 0.25, (b) 0.6, (c)
lilavasa [31]

Hey there!:

The fractional saturation y is defined as :

y =  [ L ] / Kd + [ L ]

where :

[ L ] = concentration of binding ligand

Kd = 400 nm

3 0
3 years ago
What happens to the energy of gas particles when an elastic collision takes place?
julia-pushkina [17]
The answer is D because there is no forces of attraction or repulsion between gas particles .
3 0
3 years ago
Read 2 more answers
When 2.714 g of AX (s) dissolves in 127.4 g of water in a coffee-cup calorimeter the temperature rises from 23.3 °C to 37.1 °C.
MakcuM [25]

Answer : The enthalpy change for the solution is 166.34 kJ/mol

Explanation :

First we have to calculate the enthalpy change of the reaction.

Formula used :

\Delta H=mC\Delta T\\\\\Delta H=mC(T_2-T_1)

where,

\Delta H = change in enthalpy = ?

C = heat capacity of water = 4.18J/g.K

m = total mass of sample = 2.174 + 127.4 = 129.6 g

T_1 = initial temperature = 23^oC=273+23=296K

T_2 = final temperature = 37.1^oC=273+37.1=310.1K

Now put all the given values in the above expression, we get:

\Delta H=mC(T_2-T_1)

\Delta H=129.6g\times 4.18J/g.K\times (310.1-296)K=7638.36J

Now we have to calculate the moles of AX added to water.

\text{ Moles of }AX=\frac{\text{ Mass of }AX}{\text{ Molar mass of }AX}=\frac{2.714g}{59.1097g/mole}=0.04592moles

Now we have to calculate the enthalpy change for the solution.

As, 0.04592 moles releases heat = 7638.36 J

So, 1 moles releases heat = \frac{7638.36}{0.04592}=166340.59J=166.34kJ

Therefore, the enthalpy change for the solution is 166.34 kJ/mol

7 0
3 years ago
Other questions:
  • Aerozine 50 is made of 50 percent Hydrazine and 50 percent UDMH, but since they both make up one liquid fuel, how do they combin
    11·1 answer
  • Which of the following is a chemical process ?
    10·1 answer
  • My name Means "colored bodies" and I contain DNA.I pass on traits to ti a new cell,but only in a systematic way​
    10·1 answer
  • 1.Which has a larger radius Ca atom or Ca+2 ion?
    6·1 answer
  • Methyl benzoate was prepared by the reaction of benzoic acid with methanol in the presence of a mineral acid. The ester product
    7·1 answer
  • FOG forms when warm air touches a
    11·1 answer
  • What does cellular respiration do?
    10·1 answer
  • Highlight the examples of radiation in the passage
    14·1 answer
  • Which of the following is NOT a function of the muscular system
    9·1 answer
  • 1. __N2 + __H2-&gt; __NH3<br><br> 2. __Fe + __HCl-&gt; __H2 + __FeCl3
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!