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
liberstina [14]
3 years ago
5

Помогите пожалуйста или с первым вопросом или со вторым. Буду очень благодарна, т.к. это мой зачет... :С

Chemistry
1 answer:
Bess [88]3 years ago
5 0
Hsiaqoanwbwiso iDisks
You might be interested in
Balance the chemical equation.Au plus HC l plus HNO 3 right arrow AuC l Subscript 3 Baseline plus NO plus Upper H 2 Upper OAu+HC
tino4ka555 [31]

Answer:

Au+ 3HCl + HNO_3 \to AuCl_3+NO+2H_2O

Explanation:

Chemical Equations are representations of chemical reactions in terms of the symbols and formulae of the elements and compounds involved. A chemical equation usually have the reactant at the left hand side while the product is on the right hand side.

A chemical Equation is of little or no value if is not in balanced equation. When an equation is balanced , the total number of atoms of any element on the left-hand side of it must be equal to the total number of atoms of that element on the right hand side.

in the given question; we are given a word problem of chemical symbol to  compute and also to balance the chemical equation.

From below; the chemical equation can be written as:

Au+ HCl + HNO_3 \to AuCl_3+NO+2H_2O

From the above  equation we will notice  that  it is not truly balanced ; so th balanced equation can be written as:

Au+ 3HCl + HNO_3 \to AuCl_3+NO+2H_2O

5 0
3 years ago
What is the freezing point of glucose?
Triss [41]

Answer:

In Fahrenheit it is 294.8°F and in Celsius it is 146°C.

7 0
3 years ago
What is the weight of a 90kg man standing on the moon, where gmoon = 1.64 m/s2?
Doss [256]

Answer:

The weigth of a 90kg man standing on the moon is <u><em>147.6 N (option C)</em></u>

Explanation:

Weight is called the action exerted by the force of gravity on the body.

The mass (amount of matter that a body contains) of an object will always be the same, regardless of where it is located. Instead, the weight of the object will vary according to the force of gravity acting on it.

The formula that allows you to calculate the weight of any body is:

W = m*g

where:

  • W = weight measured in N.
  • m = mass measured in kg.
  • g = acceleration of gravity measured in m/s². The acceleration of gravity g is the same for all objects that fall due to gravitational attraction, whatever their size or composition. For example, as an approximate value on Earth, g = 9.8 m/s².

In this case,  the mass m has a value of 90 kg and the gravity g has a value of 1.64 m/s², which is the value of the acceleration of gravity of the moon. Then:

W=90 kg* 1.64 m/s²

<u><em>W= 147.6 N</em></u>

Finally, <u><em>the weigth of a 90kg man standing on the moon is 147.6 N (option C)</em></u>

3 0
3 years ago
What do you think could be happening to the sand eels​
Alex777 [14]

Answer:

is there like a passage to answer this question?

Explanation:

7 0
3 years ago
Read 2 more answers
When do acids follow the same naming conventions as other covalent componds
Valentin [98]
Jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjgccccccccccccccccccccc
3 0
3 years ago
Other questions:
  • If a sample containing 2.50 ml of nitroglycerin (density=1.592g/ml) is detonated, how many total moles of gas are produced?
    13·1 answer
  • Which of the following chemical equations show(s) oxidation-reduction reactions?1. Mg(s) + I2(aq) --&gt; MgI2(s)2. Pb(ClO4)2(aq)
    12·1 answer
  • Which graph models the equation 3x-4y=12
    9·2 answers
  • In North America, where is population density the highest ?
    12·1 answer
  • For a science experiment Marcia dissolved 1.0 kilogram of salt in 3.0 liters of water. For a different experiment, Bobby dissolv
    14·1 answer
  • An example of a synthesis is the Statue of Liberty turning green. Oxygen in the air combines with the copper statue to form copp
    13·2 answers
  • Vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvoops<br> wrong
    13·2 answers
  • As: [Ar]4s23d104p3 [Ar]4s23d104p2 [Kr]4s24d104p3 [Kr]4s23d104p3
    10·2 answers
  • PLEASE HELP!! 50 POINTS FOR ONE MULTIPLE CHOICE QUESTION!!!!!!!!!!!!!!!
    11·2 answers
  • Differentiate between positive and negative deviation ~<br><img src="https://tex.z-dn.net/?f=%20%5C%5C%20" id="TexFormula1" titl
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!