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
alina1380 [7]
2 years ago
15

jane starts to blink her eyes when her brother shines a flashlight at her. why does jane start blinking her eyes

Chemistry
1 answer:
Ivanshal [37]2 years ago
3 0
There is too much light entering her eyes. 
You might be interested in
Which group is composed entirely of nonmetals?
frozen [14]
Group 18 is the only group in periodic table in which all the elements are nonmetals. This group contains F, Cl, Br, I and At and also the other name of this group is halogen which means salt producer.

You welcome and please give me brainiest!
3 0
2 years ago
Read 2 more answers
What is the difference between creep and a landslide?
Oksanka [162]
Creep is somthing you might call somone following you. Example, "he was slowly creeping up the stairs behind me". A land slide normally moves faster then that.
4 0
3 years ago
List 2 of the important properties of gases​
horrorfan [7]

Answer:

pressure, temperature and volume

Explanation:

3 0
3 years ago
Read 2 more answers
I need help with this question
KiRa [710]
A challenge they could face is that the plants are not used to the climate in the new area . (sorry if it’s wrong)
5 0
2 years ago
Determine the theoretical yield of HCl if 60.0 g of BC13 and 37.5 g of H20 are reacted according to the following balanced react
Pie

Answer : The theoretical yield of HCl is, 56.1735 grams

Explanation : Given,

Mass of BCl_3 = 60 g

Mass of H_2O = 37.5 g

Molar mass of BCl_3 = 117 g/mole

Molar mass of H_2O = 18 g/mole

Molar mass of HCl = 36.5 g/mole

First we have to calculate the moles of BCl_3 and H_2O.

\text{Moles of }BCl_3=\frac{\text{Mass of }BCl_3}{\text{Molar mass of }BCl_3}=\frac{60g}{117g/mole}=0.513moles

\text{Moles of }H_2O=\frac{\text{Mass of }H_2O}{\text{Molar mass of }H_2O}=\frac{37.5g}{18g/mole}=2.083moles

Now we have to calculate the limiting and excess reagent.

The balanced chemical reaction is,

BCl_3(g)+3H_2O(l)\rightarrow H_3BO_3(s)+3HCl(g)

From the balanced reaction we conclude that

As, 1 mole of BCl_3 react with 3 mole of H_2O

So, 0.513 moles of BCl_3 react with 3\times 0.513=1.539 moles of H_2O

From this we conclude that, H_2O is an excess reagent because the given moles are greater than the required moles and BCl_3 is a limiting reagent and it limits the formation of product.

Now we have to calculate the moles of HCl.

As, 1 mole of BCl_3 react to give 3 moles of HCl

So, 0.513 moles of BCl_3 react to give 3\times 0.513=1.539 moles of HCl

Now we have to calculate the mass of HCl.

\text{Mass of }HCl=\text{Moles of }HCl\times \text{Molar mass of }HCl

\text{Mass of }HCl=(1.539mole)\times (36.5g/mole)=56.1735g

Therefore, the theoretical yield of HCl is, 56.1735 grams

7 0
3 years ago
Other questions:
  • Convert 49 lbs into grams
    13·1 answer
  • Consider the combustion of octane (C8H18)
    12·1 answer
  • Help help help. <br> please help me
    5·1 answer
  • Select the number of valence electrons for fluorine.
    13·2 answers
  • How many moles of cesium (Cs) atoms are in 675g Cs?
    15·2 answers
  • Which of the following statements is not accurate in regard to the first four energy levels?
    8·1 answer
  • Which of the following is an example of point-source pollution? A. Salt from roads B. Water from a sewage treatment plant C. Fer
    6·1 answer
  • The particles of longitudinal waves vibrate by pushing together and moving apart parallel to the direction in which the wave tra
    10·1 answer
  • There are moles of carbon present in 100 g of a
    11·1 answer
  • When copper is changed to copper(II) nitrate by the nitric acid, it is an example of a(n) ______-_______ reaction. (two words, i
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!