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
irinina [24]
2 years ago
14

F

Chemistry
1 answer:
kobusy [5.1K]2 years ago
8 0

Answer:

From the periodic table, Atomic number of fluorine is 7 and atomic mass is 19

You might be interested in
which of the following true? a_volcanoes and earthquakes often near the plate boundaries. b_volcanoes occur whereve there are ta
pentagon [3]

The answer is A. Volcanoes and earthquakes often occur near place boundaries. Volcanoes are exit points for heat from the Earth's core. And Earthquakes are caused by the tectonic places colliding along another one. For example one tectonic plate would be slowly moving south, and another next to it could collide with the South-going plate while going North, and that is what causes Earthquakes.

4 0
3 years ago
Read 2 more answers
Balance the following equation____H2 + ____O2 → ____H2O
Snezhnost [94]

Answer:

2

Explanation:

Since it has to be 2H2+02→2H20 for it to be balanced.

3 0
2 years ago
Which process is occurring when rocks under Earth's surface become hot liquid magma?
zepelin [54]

Answer:

Explanation:

Cuando se encuentra en el interior de la tierra es nombrado concretamente magma y lava cuando es expulsada a la superficie. ... comienza a fundirse y el final de fusión (punto líquido) la roca esta parcialmente fundida. ... por su color oscuro, son más calientes que los magmas ácidos o félsicos (claros)

8 0
3 years ago
You are confronted by a phosphorus atom. this atom has 15 protons and 17 neutrons. how many electrons does it have
bogdanovich [222]
15 electrons if it is not an ion

8 0
3 years ago
Read 2 more answers
if 28.5 g of calcium hydroxide is dissolved in enough water to make 185g of solution what is the percent by mass of calcium hydr
DENIUS [597]

The percent by mass of calcium hydroxide in the solution : 15.41%

<h3>Further explanation</h3>

The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight/volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent.

Mass of solute (Ca(OH₂-Calcium hydroxide) : 28.5

Mass of solution = 185 g

\tt \%mass=\dfrac{mass~solute}{mass~solution}\times 100\%\\\\\%mass=\dfrac{28.5~g}{185~g}\times 100\%\\\\\%mass=15.41\%

6 0
3 years ago
Other questions:
  • Calculate the mass of water produced when 1.92 g of butane reacts with excess oxygen.
    8·1 answer
  • To begin the experiment, 1.11g of methane CH4is burned in a bomb calorimeter containing 1000 grams of water. The initial tempera
    13·1 answer
  • The water cycle always follows the same pattern
    14·2 answers
  • Which of the following pairs of elements could possibly be in the same group? X has a 1+ ion; Y has a 1- ion. X tends to form a
    14·2 answers
  • About how long is 1 meter?
    12·2 answers
  • Which example is not a biomass energy source?
    6·2 answers
  • What mass of aluminum is needed to produce 0.500 mole of aluminum chloride?
    13·1 answer
  • - Which scientist is given the credit for making the element?
    10·2 answers
  • Culinary arts HELP FAST 1. Most people don't often think about science and restaurants or the food industry as
    8·1 answer
  • How does the curing basically take place?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!