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
BartSMP [9]
3 years ago
6

Hi kay my account got deleted this is my new one

Chemistry
2 answers:
zysi [14]3 years ago
8 0

Answer:

um hi

Explanation:

jek_recluse [69]3 years ago
3 0

Answer:

hUh

Explanation:

You might be interested in
How many moles of pcl5 can be produced from 28.0 g of p4 (and excess cl2)?
BARSIC [14]
P₄ + 10Cl₂ ---> 4PCl₅
stoichiometry of P₄ to PCl₅ is 1:4
number of moles of P₄ reacted - 28.0 g / 124 g/mol = 0.22 mol 
Cl₂ is in excess therefore P₄ is the limiting reactant, amount of product formed depends on amount of limiting reactant present 
according to molar ratio of 1:4
number of PCl₅ moles formed  -0.22 mol x 4 = 0.88 mol 
0.88 mol of PCl₅ is formed 

5 0
3 years ago
One of the main goals of environmental science is to help humans use the environment in a way that is economically profitable.
kkurt [141]

Answer:

true this is correct its your econimically

5 0
2 years ago
2. How do chemical weathering and deposition contribute to the formation of the features shown here?
Nimfa-mama [501]
Is there a picture or something? i cant see it.
6 0
2 years ago
Chemical equation below demonstrate that?<br> NEED HELP ASAP
zmey [24]

(a) Matter cannot be created and destroyed by a chemical reaction.

Explanation:

(a) Matter cannot be created and destroyed by a chemical reaction. (correct)

The number and type of atoms entering the chemical reaction are the same with the number and type of atoms leaving the chemical reaction.

(b) The reactants are the same substance as the products. (wrong)

You may see in the reaction that we have as reactants zinc and hydrochloric acid which react to form the products, zinc chloride and hydrogen.

(c) The number of molecules in the reactants are equal to the number of molecules in the products. (wrong)

As reactants we have 2 hydrochloric acid (HCl) molecules and as products 1  hydrogen (H₂) molecule. Zn is a metal and ZnCl is a salt.

(d) The atoms on the reactants side are changed into different atoms on the products side. (wrong)

The number and type of atoms entering the chemical reaction are the same with the number and type of atoms leaving the chemical reaction.

Learn more about:

balancing chemical equations

brainly.com/question/13695436

#learnwithBrainly

7 0
2 years ago
I NEED HELP I WILL RATE BRAINLIEST!!!
Mila [183]
I think it is True because the SI unit is <span>J/°C</span>
7 0
3 years ago
Other questions:
  • What is the role of the beaver in its ecosystem?
    9·2 answers
  • The half-life of cesium-137 is 30 years. Suppose we have a 40 mg sample. Exercise (a) Find the mass that remains after t years.
    13·1 answer
  • What do we call the stars whose properties follow the patterns?
    15·1 answer
  • The perimetre of two square with area 325cm^2​
    10·1 answer
  • Which option should a person avoid doing in order to better protect the quality of watersheds?
    15·1 answer
  • What’s the answer pls hrlp
    10·1 answer
  • HELP WILL GIVE BRAINLIEST!
    6·1 answer
  • BALANCE the following equations then write the NET IONIC EQUATION for each one: ____Ni(NO​ 3​ )​ 2​​(aq)​ + ____NaOH ​(aq)​ ​→ ​
    5·1 answer
  • 1. What is the purpose of the advertisement?​
    6·2 answers
  • You have 300,000 atoms of a radioactive substance. After 3 half-lives have past, how many atoms remain? Remember that you cannot
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!