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
dezoksy [38]
3 years ago
14

Help me? Chemistry please

Chemistry
1 answer:
aksik [14]3 years ago
8 0

Answer:

A-  1 hydrogen, 1 oxygen, 1 chlorine

B-  2 Nitrogen,  4 hydrogen

C-  2 sodium, 2 oxygen

the last one i dont understand because im in middle school and i havent learned that... :/

Explanation:

You might be interested in
A eudiometer contains a 65.0 ml sample of a gas collected
SCORPION-xisa [38]

Answer:

53.1 mL

Explanation:

Let's assume an ideal gas, and at the Standard Temperature and Pressure are equal to 273 K and 101.325 kPa.

For the ideal gas law:

P1*V1/T1 = P2*V2/T2

Where P is the pressure, V is the volume, T is temperature, 1 is the initial state and 2 the final state.

At the eudiometer, there is a mixture between the gas and the water vapor, thus, the total pressure is the sum of the partial pressure of the components. The pressure of the gas is:

P1 = 92.5 - 2.8 = 89.7 kPa

T1 = 23°C + 273 = 296 K

89.7*65/296 = 101.325*V2/273

101.325V2 = 5377.45

V2 = 53.1 mL

6 0
3 years ago
Is it possible to make new water
alexandr1967 [171]

No, Matter cannot be created nor deastroyed.

5 0
2 years ago
Read 2 more answers
The substances that are produced after the chemical reaction are called the ___​
sertanlavr [38]

Answer:

Products

Explanation:

During a chemical reaction, there are the reactants (left side), and the products (right side).

6 0
2 years ago
Read 2 more answers
The density of gold is 19.3 g /cm cubed The density of iron pyrite is 5.0 g /cm cubed. Is a nugget of iron pyrite and a nugget o
telo118 [61]
If you clear volume in the density equation:

\rho = \frac{m}{V}\ \to\ V = \frac{m}{\rho}

The greater the density the lower the volume. This means, the volume of gold nugget will be smaller than the volume of iron pyrite nugget.

V_{gold} = \frac{m}{\rho} = \frac{50\ g}{19.3\ g/cm^3} = \bf 2.59\ cm^3

V_{iron} = \frac{m}{\rho} = \frac{50\ g}{5.0\ g/cm^3} = \bf 10\ cm^3
6 0
3 years ago
On what two days would the UK, Chile, South Africa, and Japan have an equal amount of day and night? O Winter Solstice and Summe
mario62 [17]
I say both equinox because winter solstice has the least amount of sunlight and the summer solstice has the most ampunt of daylight so i said both equinox
4 0
3 years ago
Other questions:
  • Which of the following represent chemical properties? Check all that apply. Question 16 options: solubility flammability conduct
    13·2 answers
  • What is it called when you apply science and mathematics to real life problems
    9·1 answer
  • Hey I have a chemistry test tomorrow,any good test advice or tips for me?
    13·2 answers
  • What happens during jury deliberation in a criminal court case?<br>​
    7·1 answer
  • Atoms bond because they become more ____ when they have ____ outer ______.
    12·1 answer
  • Which has more calories: table sugar or aspartame?
    6·1 answer
  • How many carbon atoms are represented in the formula for CaMg3(CO3)4​
    10·1 answer
  • A gas occupies a volume of 60 L at a temperature of 0.5 K. What will the volume be at 4 K?
    5·1 answer
  • How many electrons are in the element
    12·1 answer
  • How many joules of heat are needed to change 50.0 grams of ice at -15.0 °C to steam at 120.0 °C?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!