Answer:
5 valence electrons
Thus, bismuth would have 5 valence electrons
Explanation:
Hope it helps
If a scale floated by and an astronaut stood on it, what would the scale say?
1.0kg
2.1/6 normal weight
3.9.8 m/s2
4.1/6 normal mass
What is the boiling point (in °C) of a 0.195 m
aqueous solution of K2S?
Enter your rounded answer with
3 decimal places.
Kb for water = 0.512 °C/m
Please hurry
Answer:100.3
Explanation:
The difference between asexual and sexual reproduction is _______. Please help me with this, thank you.
Answer:
hope this helped.
Explanation:
Sexual reproduction just means combining genetic material from two parents. Asexual reproduction produces offspring genetically identical to the one parent.
1. Which of these is not a natural part of
Soil is a mixture of minerals, organic matter, water and air. The minerals come from bits of broken-down
rock. Organic matter is material that is alive or used to be alive. It includes leaves, twigs, bugs and many
microscopic, or tiny, organisms like bacteria and fungi. In fact, there are more microorganisms in a handful
of soil than there are people on the planet. Soil is needed for life to exist on Earth. It contains many
nutrients that help plants grow. Then the plants provide nutrients that help animals grow
A. pebbles of different sizes
B. plastic bottle caps
C. dead worms
D. plant roots
When a predator population increases what happens to the prey population? Increase Decrease Dies Stays the same
Answer: as the number of predators increases, more prey are captured. as a result the prey population starts to decrease.
I
Solid iron(III) oxide is produced when hot iron filings are exposed to pure
oxygen gas.
Copper carbonate decomposes to make _____________ oxide and _____________ dioxide
Answer:
Copper carbonate decomposes to copper oxide and carbon dioxide.
Explanation:
how can i solve this question? can you pls help me
Answer:
what's the question ?
What is the percentage of metal in a sample of CaSO4?
Answer:
Calcium is the metal so its 29.439%
Explanation:
Calcium Ca 29.439%
Oxygen O 47.008%
Sulfur S 23.553%
What is a mixture? Plz help
Answer:
a substance made by mixing other substances together.
Explanation:
Answer:
a mixture is different things put together
Explanation:
Given the following equation:
8 Fe + S8 ---> 8 FeS
What mass of iron is needed to react with 106.0 grams of sulfur?
Answer27.9 gFeS
Explanation:
Note: This is for 16.0 Grams of Sulfer
Use the words Mercury, Venus, Earth or Mars to fill in the blanks
Answer:
Earth is the only planet with plate tectonics
Mars is the most heavily cratered planet
Mercury is the only planet that has virtually no atmosphere
Mars has an atmosphere that is about 1% as dense as Earth's
Venus has an extremely dense atmosphere
Venus rotates in the opposite direction of the other planets
Venus is the most volcanically active planet
and Earth have sedimentary rock formations
Earth has a strong magnetic field
Mars had oceans in the past :3
Explanation:
:3
Which hand is negatively charged? Ο Α. OB. Oc. OD.
Answer:
it would be OA that is negatively charged
I am a celestial body that does not produce light. I orbit a planet
Where do fronts always form?
Fronts form over water and move inland.
Fronts form at boundaries between air masses.
Front form at high altitudes and descend toward Earth's surface.
Fronts form around locations with severe weather.
What is the mass of zinc required to combine with 0.5 mol of chlorine to produce zinc chloride,ZnCI[subscript 2]?
[Relative atomic mass : Zn = 65]
Answer:
16.25g
Explanation:
Equation for the reaction = Zn + 2Cl = ZnCl2
1 molecule of Zn = 2 molecule of Cl
x mole of Zn = 0.5mol of Cl
mole of Zn = 0.25mol
mass of Zn = 0.25 * 65 = 16.25g
The mass of zinc required to combine with 0.5 mol of chlorine to produce zinc chloride is 16.25g.
What is mass?Mass is the quantity of matter in a physical body.
The reaction is Zn + 2Cl = ZnCl₂
The ratio of moles of Zn and Cl
1 : 2
m, mol of Zn is equal to 0.5 mol of Cl
Moles of Zn = 0.25 mol
Multiply the mole of Zn and the relative atomic mass of Zn
Mass of Zn = 0.25 × 65 = 16.25 g.
Thus, the mass of zinc is 16.25 g.
Learn more about mass
https://brainly.com/question/19694949
What is the mass in grams of 5.90 moles of aluminum. AI?
Answer:
159.3 grams Al
Explanation:
1 Mol of Al = 27 grams, so:
5.9 Mol Al (27g/1mol) = 159.3 grams Al
The Mol gets canceled out, leaving the unit of grams.
Which of the following is NOT true about the role tectonic forces play in the rock cycle?
1. When plates pull apart, rocks melt, and magma forms igneous rocks.
2. When plates crash together, rocks are buried and form metamorphic rocks.
3. When plates slide over & under each other, the heat & pressure form igneous rocks.
4. When rocks push upward & form mountains, the erosion of the mountains can produce sediment.
Answer:
i believe it is number #3
Explanation:
hope this helps
2. How would type of substance affect the rate of reaction?
Which represents the greatest mass of fluorine?
there is no image so there's no way for me to know an answer
Answer:
You need to add a image for me to answer it love
Which of the following is an example of a parasite?
a. A flea that bites an animal and sucks its blood to survive.
b. An orchid flower that sits on a tree branch
c. The bacteria that live in human intestines and help humans digest things.
d. An Egyptian plover that cleans a crocodile's teeth.
hmm helpo?
Answer:
a sorry if im wrong
Explanation:
9.31*10^3=_*10^5
please if you could explain it as well, i’m so confused and struggling
1. What is the unit for electrical
conductivity?
Answer:
Siemens Per
Explanation:
S/m(Siemens per meter).
Answer:
The unit for electrical conductivity, is Siemens per meter in SI units. S/m
Provide a brief description of how the respiratory system works
Answer:
The lungs and respiratory system allow oxygen in the air to be taken into the body, while also letting the body get rid of carbon dioxide in the air breathed out. When you breathe in, the diaphragm moves downward toward the abdomen, and the rib muscles pull the ribs upward and outward.
Explanation:
Identify the product(s) of the following reaction:
H
2
2
CO
3
3
→ H
2
2
O + CO
2
2
A
H
2
2
CO
3
3
B
H
2
2
and O
3
3
C
H
2
2
O and CO
2
2
D
O and O
2
2
Answer:
H20
Explanation:
means water but might not help
Which element was first discovered in space before it was discovered on Earth?
nitrogen
helium
carbon
hydrogen
Answer:
carbon
Explanation:
Answer:
carbon was discovered in space before on earth
How is the division of animal/human cells different from the division of plant cells?
Which statement describes elements?
A. Each element is made up of the same type of atoms.
B. Each element is made up of different types of atoms.
C. All elements exist only in the liquid phase.
D. All elements are solid metals.
Answer:
B
Explanation:
HELP ASAP!!!
can someone help be determine the formulas for reactants and products as well as balance the equation, and what type of reaction is presented!!!!
I will make you the brain list!!!
Answer: owa owa
Explanation: owa owa owa owa
How many mm Hg is 9 atms?
6840.00 mmHg
(Please mark me brainliest! thank you in advance!!)