Answer:
3.0%
Explanation:
A solution's mass percent concentration, (% m/m), is calculated by observing the mass of solute in grams of obtained in each 100 g of solution. In simple terms, the solution's mass percent concentration is given by the number of parts of solute obtained in every 100 parts of solution, made up of solute and solvent.
Hence the percent m/m concentration of a solution is obtained as;
Mass of solute/ mass of solution × 100/1
From the question, we have,
Mass of solute= 1.4g
Mass of solution= 46.6 g
Therefore, percent m/m concentration of the saline solution=
1.4/46.6 ×100/1 = 3.0%
The percent solute concentration of the solution is 3.0%
Mount St. Helens is a volcano that erupted with great force in 1980. Which phrase best describes this eruption?
quiet eruption
gentle lava flows
magma low in silica
high-viscosity magma
Answer:The best phrase which supports the eruption would be high-viscosity magma lava broken into fragments.
Answer:
high-viscosity magma
Explanation:
High viscosity lavas flow slowly and typically cover small areas. In contrast, low viscosity magmas flow more rapidly and form lava flows that cover thousands of square kilometers.
Which of these metals is least likely to be involved in chemical reactions?
A. iron
B. tin
C. gold
D. copper
Answer:
C gold
Explanation:
What was one was one important impact of Supreme Court's ruling in Bush v. Gore
Answer: the answer is b or c
Explanation:
I took it
Sometimes fossils can be found in sedimentary rocks. Which statement best explains why?
Answer: ITS A
Explanation: HOPE THIS HELPS
Someone please help me if right I’ll give you 5$
Answer:DId you even read it you have to that in your lab class and says you need other information aint no way i can answer that
Explanation:
The image shows the gravitational effects of the moon (not shown) on the Earth (depicted here) and the resulting tides that form. Which statements are true about the gravitational force between the Earth and the moon? Select ALL that apply.
Responses
A The moon exerts equal gravitational force on all locations of the Earth
B The moon exerts a smaller gravitational force on Earth locations that are farther away
C The moon must be to the right of the Earth because gravity is an attractive force.
D The moon must be to the left of the Earth because gravity is a repulsive force.
E The moon exerts a greater gravitational force on the Earth than the sun does.
Answer: B
Explanation:
Brainliest please! (if im right)
Which of the following is an example of chemical weathering?
a Frost wedging
b Animal activity
c Plant growth
d Acid rain
Answer:
d acid rain
Explanation:
plz mark brainlyst
Please help asap!! Tysm!♡♡
Answer: EGG
Explanation: RAW
Which of the following statements fully describes what an object may do when it experiences unbalanced forces? Select the two best answers.
A. It may change directions.
B. It will move at a constant speed.
C. It may slow down.
D. It may slow down or speed up.
E. It will stay stationary.
Answer:b
Explanation:
George Washington Carver received _____ from God during early morning walks in the woods.?
1. Guidance
2. Inspiration
3. Finances
4. Solutions
(There more than one answer.)
Answer:
1. Guidance
2. Inspiration
I think this is right hope it helps
Please help me por favor :'(
Weather fronts tend to produce changes in the weather
True
False
Answer:
True
Explanation:
Compare and contrast Mechanical weathering and Chemical weathering.
Mechanical weathering:
1.
2.
Chemical weathering:
1.
2.
Both:
1.
2.
Thank you!
Answer:
Mechanical weathering:
It is the physical breakdown of rocks and minerals into smaller fragments without changing their chemical composition.
It occurs due to external forces such as freeze-thaw cycles, abrasion, and plant roots expanding.
Chemical weathering:
It is the alteration of rock or mineral material into new compounds as a result of chemical reactions with water, air, and acids.
It occurs due to the reaction of minerals with water, carbon dioxide, oxygen, and other agents to form new compounds such as oxides, hydroxides, and carbonates.
Both:
Both processes work together to break down and transform the earth's crust.
Both processes are essential for soil formation and the creation of new landscapes over geological time scales.
Explanation:
help me fill this page with the right answer please (17 lines minimum please)
1. Using D10W and a vial of NaCl 4 mEq/mL, how many mL of NaCl are needed to prepare 250 mL of a
D10/NS solution?
a. 4.8mL
b. 9.6ml
c. 19.6mL
d. 154mL
To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.
Conner boils water on the electric stove. The electrical energy is transferred to the thermal energy of the stove. This demonstrates which of the following?
a
Energy is created and then destroyed
b
Every system produces more energy than goes into it
c
Energy can change from one form to another
d
Electrical energy can only produce heat energy
Answer:
The answer is C
Explanation:
Also I love your Bakugou pfp ;D
Answer:
c
Explanation:
because I think it makes the most sense
How does mercury find its way into our ecosystems?
a.) Found in paints
b.) Found in solder joints of copper
c.) Burning coal
d.) Insulation in older houses
Please answer the following essay question with 5-7 sentences.
How is a chemical change different from a physical change?
Use the picture below to answer the question.
Comparing the two waves, wave B has a...
A) higher frequency.
B) greater amplitude.
C) shorter wavelength.
D) longer wavelength.
Answer: D) longer wavelength.
Explanation:
Which of these phrases would go in the overlap? Select two options.
What was the low temperature for hurricane Katrina?
Answer: 90 degrees F
Explanation:
If a trait varies greatly within a pair of identical twins, it is most likely caused by what?
A.Genetics
B. Environment
C. Nutrition
D.inherited
True or False: Genetics and environment both are responsible for making you who you are.
A.true
B.false
Answer:
1. B. environment
2. A. true
Explanation:
If a trait varies greatly within a pair of identical twins, it is most likely influenced by the environment. Genetics and the environment both are responsible for human development.
What is Genetics?Genetics can be described as the study of genetic variation, genes, and heredity in organisms. It is a branch in biology because heredity is vital to organisms' evolution.
Trait and molecular inheritance mechanisms of genes are still primary principles of genetics and have expanded to study the function and behavior of genes.
Genetics has a number of subfields, including molecular genetics, epigenetics, and population genetics. Living organisms are studied within the broad field span the domains of life such as bacteria, archaea, and eukarya.
Genetic processes work with an organism's environment and experiences to influence behavior and development referred to as nature versus nurture. The extracellular or intracellular environment of a living organism can switch gene transcription on or off.
Therefore, the given statement is true.
Learn more about Genetics, here:
https://brainly.com/question/13049663
#SPJ2
I am a metalloid. I am in the nitrogen family and row 4. I have an atomic mass of 74.92. I can be used as a poison. Who am I?
Answer:
As – Arsenic
Explanation:
Let's break this down step by step. Make sure you have a periodic table to reference.
"I am a metalloid" – We will be looking towards the right side of the periodic table. The possible choices are boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te), and astatine (At).
"I am in the nitrogen family" – Families are elements grouped by columns. The nitrogen family is group 15. The possible choices are now arsenic (As) and antimony (Sb).
"and row 4" – Counting from the very top (don't forget row 1 of hydrogen and helium), we can see that arsenic (As) is in the 4th row.
"I have an atomic mass of 74.92" – Arsenic (As) does have an atomic mass of 74.92, which confirms our answer.
Hope this helps!
help science periodic table
H E L P M E
ashlynkhimehardinan
complete the sentence
Answer:
Swimming is lots of fun for people of all ages and children especially love getting in the water and enjoying themselves. It helps people get calm and with elders to
Explanation:
Where is the DNA stored in a cell?
Answer: nucleus
Explanation:
I need help asap pleasee
4) Finish the analogy related to atoms and matter:
atom is to element as_________________ is to compound
AND letter is to ____________________
What is unique about the moons that orbit Jupiter? (select all that apply)
some are as large as planets
they all have names
there are more than 70 of them
several are bigger than Earth's moon
I personally think that "There are more than 70 of them" and "Some are as large as planets" is the most unique.
help me with this I only have one more
1156 g/L
= ________ kg/mL
The Answer is 0.001156.