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
Aleks04 [339]
3 years ago
14

13. Find the total number of atoms present in the following molecules. a. 5 H₂O b. Zn Cl₂​

Chemistry
1 answer:
olganol [36]3 years ago
5 0

Answer:

A= 15 atoms B= 3

Explanation:

5 x 2 + 5 x 1

3 + 2 x 1

You might be interested in
Changes in the forms of energy are called
Andrews [41]
The answer is B ( you could have just looked it up online)
4 0
3 years ago
Agar is used to culture bacteria and as a medium in electrophoresis. The agar used in this Petri dish is a by-product of an unli
Ymorist [56]
Agar is extracted from an algae (agarophytes, <span>belong to the </span>Rhodophyta (red algae) phylum, <span>primarily from the </span>genera Gelidium<span> and </span><span>Gracilaria</span>).
Agar <span>or </span>agar-agar is a jelly-like substance. Agar is the mixture of two components, agaropectin (D-glucuronic acid and pyruvic acid) and <span>the polysaccharide agarose.</span>
4 0
3 years ago
A _______ is a segment of DNA that contains the information necessary to express the inherited traits of an organism. A. protein
Ilya [14]

Answer:

"gene" is the segment of DNA containg the inheritance information.

6 0
3 years ago
How does water’s high specific heat capacity affect large lakes?
mixas84 [53]

Answer:

B The water at the bottom of the lake will never freeze

Explanation:

Its simple

5 0
3 years ago
PLZZZZZ HELP MEEEEEE
Masja [62]

Answer:

0.0745 mole of hydrogen gas

Explanation:

Given parameters:

Number of H₂SO₄ = 0.0745 moles

Number of moles of Li = 1.5107 moles

Unknown:

Number of moles of H₂ produced = ?

Solution:

To solve this problem, we have to work from the known specie to the unknown one.

The known specie in this expression is the sulfuric acid,  H₂SO₄. We can compare its number of moles with that of the unknown using a balanced chemical equation.

   Balanced chemical equation:

                    2Li   +     H₂SO₄   →   Li₂SO₄   +   H₂

 From the balanced equation;

     

Before proceeding, we need to obtain the limiting reagent. This is the reagent whose given proportion is in short supply. It determines the extent of the reaction.

           2 mole of Li reacted with 1 mole of  H₂SO₄

          1.5107 mole of lithium will react with \frac{1.5107}{2}  = 0.7554mole of H₂SO₄

But we were given 0.0745 moles,

This suggests that the limiting reagent is the sulfuric acid because it is in short supply;

   

   since 1 mole of sulfuric acid produced 1 mole of hydrogen gas;

    0.0745 mole of sulfuric acid will produce 0.0745 mole of hydrogen gas

4 0
3 years ago
Other questions:
  • I need help asaaaaap
    10·1 answer
  • Plz help if you can!!!
    14·2 answers
  • What are two elements that form a large number of bonds and that both have similar properties to carbon?
    5·1 answer
  • During the bromination <br> of methane the free radical Ch3 is generated
    10·2 answers
  • 0 ml of a 0.100 m solution of nh3 is titrated with 0.250m hcl. after 10.0 ml of the hcl has been added, the resultant solution i
    11·1 answer
  • How many conversion factors can be created from one equivalence statement
    15·1 answer
  • What is a concentration in science?​
    9·2 answers
  • Help me pls <br> help me please<br> help me<br> help me please<br> help me pls
    8·1 answer
  • Please help me I need these answers
    5·1 answer
  • Need help fast!!!!!!!!!!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!