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
alexdok [17]
3 years ago
14

HELPPPPPP PLZZZZZ! FILE ATTACHED BELOW! ASAP PLZZZ!

Chemistry
1 answer:
baherus [9]3 years ago
4 0
90 would be my guess.

You might be interested in
Which of the following is a characteristic of a good roasting pan? ​
lbvjy [14]

Answer:

i can't understand the question

4 0
3 years ago
a sample of solid is decomposed and found to contain 6.52g of potassium, 4.34 g of chromium and 5.34 of oxygen, what is the empi
Fynjy0 [20]

Answer:

K₂CrO₅

Explanation:

The empirical formula is the simplest formula of a compound. To find the empirical formula, we follow the procedure below:

Elements                         Potassium                 Chromium         Oxygen

Mass                                  6.52                             4.34                  5.34

Molar mass                          39                               60                      16

Number of moles             6.52/39                     4.34/60             5.34/16

                                             0.167                          0.072              0.333

Divide through by

the smallest                      0.167/0.072             0.072/0.072          0.333/0.072

                                            2.3                               1                                4.6

                                             2                                 1                                  5

Empirical formula K₂CrO₅

5 0
3 years ago
Write ashort note on the<br>first battle of<br>of panipat​
mel-nik [20]

Answer:

The First Battle of Panipat was fought between the invading forces of Babur and the Lodi Empire, which took place on 21 April 1526 in North India. It marked the beginning of the Mughal Empire. This was one of the earliest battles involving gunpowderfirearms and field artillery.

5 0
2 years ago
When you burned copper, the product copper
MatroZZZ [7]

Answer:

Oxygen.

Explanation:

The copper must be combined with something in the air.

6 0
3 years ago
Read 2 more answers
if you are using a formula where you need the change in temperature, explain why it is not important whether your temperatures a
alexandr1967 [171]

Answer:

This is because, Kelvins and Celcius degrees both agree at fixed points i.e; the lower fixed point and upper

5 0
3 years ago
Other questions:
  • 12.8g of zinc reacts with hydrochloric acid. what mass of hydrochloric acid is produced
    14·1 answer
  • Identify the highlighted secondary lymphatic tissue located on the lateral wall of the oropharynx just inferior to the soft pala
    10·1 answer
  • Which of the following is a synthesis reaction? AgNO3 + NaCl → AgCl + NaNO3 BaO + H2O → Ba(OH)2 SO3 + H2O → H2SO4 Cu + AgNO3 → A
    14·2 answers
  • Identify the element that has 6 valence electrons and 3 energy levels
    14·1 answer
  • Calculate the number of moles in a 2.98 g sample of aluminum.
    15·1 answer
  • What is the half - life formula
    11·1 answer
  • What is the Energy of a wave whose frequency is 8.45 x 10^14 Hz?
    10·1 answer
  • Help with all of these please!
    12·1 answer
  • What's the charge on Ni in the compound NiCi3? *
    12·1 answer
  • Which has more atoms, 1 moles of barium atoms or 2 moles of carbon atoms?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!