Answers
Answer:
D
Explanation:
Hope this helps
Related Questions
Which group of elements gain electrons?
Answers
Answer:
Non-metals tend to gain electrons
Explanation:
write the name of the first twenty elements with their symbols and their atomic number
Answers
Answer:
1 Hydrogen H
2 Helium He
3 Lithium Li
4 Beryllium Be
5 Boron B
6 Carbon C
7 Nitrogen N
8 Oxygen O
9 Fluorine F
10 Neon Ne
11 Sodium Na
12 Magnesium Mg
13 Aluminium Al
14 Silicon Si
15 Phosphorus P
16 Sulfur S
17 Chlorine Cl
18 Argon Ar
19 Potassium K
20. calcium Ca
Answer:
h - hydrogen (1)
he - helium (2)
li - lithium (3)
be - beryllium (4)
b - boron (5)
c - carbon (6)
n - nitrogen (7)
o - oxygen (8)
f - fluorine (9)
ne - neon (10)
na - sodium (11)
mg - magnesium (12)
al- aluminium (13)
si - silicon (14)
p - phosphorus (15)
s - sulfur (16)
cl - chlorine (17)
ar - argon (18)
k - potassium (19)
ca - calcium (20)
Q
a. Ahmed worked on his crops of wheat and maize to produce a better-quality crop (which gives a more yield). In detail, write down how he altered his crop into a better yielding crop.
b. What is the name of the process that Ahmed used to breed his new better-quality wheat and maize.
Answers
Answer:
.
Explanation:
Do bacteria help people?? This is science but there is no tab
Answers
Answer:
Yes
Explanation:
Some bacteria is good for you like the bacteria in your digestive system, which helps with breaking down food and keeping you healthy
The
the surface area of the reactants, the faster the reaction rate.
A. greater
B. lesser
Answers
hope this helps!!
help with this question please i will mark you brainliest!!!
Answers
Answer:
b
Explanation:
What type of compound is this?
Answers
Answer:sorry id ont known
Explanation:give m brianlest if you want
two or more atoms joined together form a _______
Answers
Answer:
When two atoms join together they make compounds
Explanation:
A molecule is formed when two or more atoms join together chemically. If atoms combine that are of two or more different elements, we call that a compound. All compounds are molecules, but not all molecules are compounds.
true or false, the change from a gas to a liquid is condesation
Answers
Answer:
true
Explanation:
i hope this is right your welcome
Answer:
The definition of Condensation is the conversion of a vapour or gas to a liquid, so therefore, this can be proven as a true statement.
2.Choose the correct order of the layers of the Earth from the outermost to the innermost layer
crust, asthenosphere, lower mantle, lithosphere, core
crust, lithosphere, asthenosphere, lower mantle, core
crust, asthenosphere, lithosphere, lower mantle, core
crust, lithosphere, lower mantle, asthenosphere, core
Answers
Answer:
A and C
Explanation:
I took the test
PLEASE HELP, I WILL MAKE YOU THE BRAINLIEST!!!
3. Magnesium sulfate is added to sodium hydroxide to produce sodium sulfate and magnesium hydroxide (10 points)
a. Write the skeletal equation and Balance the chemical equation describing the reaction above.
b. What kind of reaction is this?
c. Rewrite the balanced chemical equation, adding state symbols for all compounds in the reaction.
Answers
Answer:
answer in the picture hi shirllleeyyyyy
Which statement best explains what happens to a leaf when it has lost much-needed water?
Answers
Answer:
its turgor pressure decreases
Explanation: This is also important because this function regulates water loss within the plant. Lower turgor pressure can mean that the cell has a low water concentration and closing the stomata would help to preserve water. :-)
When a leaf loses much-needed water, its turgor pressure would decrease. Hence Option A is Correct
What is Turgor pressure ?Turgor Pressure is created in the cells of a leaf when there is enough water. The water stretches the cell membrane outward, creating a kind of pressure.
When the cells lose water, the cell membrane shrinks inward and loses the supporting pressure.
Thus, the turgor pressure created by the presence of water is lost by the absence of water.
The absence of water also affects the rate of photosynthesis and transpiration negatively and not positively. A leaf losing water has no bearing on the atmospheric pressure.
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Which form of energy can be connected closely to climate change?
hydroelectric
coal
solar
wind
Answers
Answer:
coal
Explanation:
Hope this helps please mark brainliest
The ability to exert a force that causes an item to move is what is meant by the definition of energy as the "power to accomplish work." Even though the definition is unclear, the meaning is clear: energy is simply the force that moves things. Potential energy and kinetic energy are the two categories of energy.
Which source of energy has a direct impact on climate change?Renewable energy is frequently cited as the most important shift the world can make to fend off the worst consequences of global warming. This is due to the fact that renewable energy sources like solar and wind don't produce greenhouse gases like carbon dioxide, which contributes to global warming.
Wind, sunlight, bioenergy (organic matter burned as fuel), and hydroelectricity, including tidal energy, are a few examples of renewable energy sources.
The ability to exert a force that causes an object to move is what the definition of energy as "power to accomplish work" refers to. Despite the ambiguity of the definition, the meaning is clear: energy is simply the force that moves things. The two types of energy are potential energy and kinetic energy.
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ayo, have some points
Answers
Answer:
aha thank you :)
Explanation:
Answer:
thank you :)
Explanation:
Which element forms an ionic compound when it reacts with lithium?
1. K
2. Fe
3. Kr
4. Br
Answers
the force that holds paticles together in the atomic nuecleaus?
Answers
Explanation:
i believe you meant particles*
4C + Sg → 4CS
is this balanced or unbalanced?
Answers
Which of the following characteristics is not necessary an organism to be considered living?
A. All living things grow and develop.
B. All living things move.
C. All living things reproduce.
D. All living things have DNA.
Answers
Aluminum bromide and chlorine gas react to
form aluminum chloride and bromine gas.
Answers
Answer:
ok
Explanation:
Jessica is holding a ball. What happens when she lets go of the ball as a result of forces acting on it?
Answers
atoms are so small that approximately _______ of them can fit at the end of a needle?
Answers
Answer:
5 million million atoms can fit at the end of a needle
Answer:
Let's just say 5 million million hydrogen atoms could fit at the end of a needle.
Explanation:
Atoms are 100 picometers, and to compare, the amount of even 1 centimeter, a calculator can't even figure out how many picometers are in a centimeter because there is just too much picometers.
how does skin protect the body from pathogens?
Answers
Answer:
It blocks pathogens from getting inside our body.
Explanation:
The skin is the biggest organ, it cover the whole body and organ system from any toxic things.
I need to know if is true or false please
Answers
Answer:
True
Explanation:
Las Vegas Raiders' running back Josh Jacobs is 72 inches tall and has mass of 100 kg. Los
Angeles Rams' defensive tackle Aaron Donald is also 72 inches tall but has a mass of 130
kg. Josh runs the ball East, towards the goal line, quickly traveling 50 yards in
5.5 seconds. Josh then accelerates towards the goal line at 9 m/s2. Aaron accelerates
West, the exact opposite direction, towards Josh at 6.5 m/s2. They both meet with an
explosive collision at the 1 yard line.
In a paragraph, address the following questions. Calculate numerical answers to the
nearest hundredth and correct units must be included.
1. What is Josh Jacobs' speed?
II. What is Josh Jacobs' velocity?
III. How much force does Josh Jacobs create?
IV. How much force does Aaron Donald create?
V. By calculating the net force, does Josh Jacobs score the touchdown.
Explain why or why not?
Answers
Answer:
Josh is running at a speed of 9.09 yards per second.
Josh's velocity is 9.09 East.
Josh's force is 900 N.
Aaron Donald's force is 845 N.
Yes Josh scores the touchdown because he is faster and has more mass than Donald.
Explanation:
Josh scores the touchdown as he is heavier and faster than Donald.
Formulas are:
Force= mass x acceleration
Speed= distance divided by time.
Velocity= distance divided by time.
An organism is unicellular, reproduces asexually, and lives in a hot hydrothermal vent at the bottom of the ocean. This organism most likely belongs to the kingdom
Answers
Calculate the speed of a bicycle
traveling 20 km in 2 hours. Show the
formula, and your work with the correct
units. HELP PLEASE AND HURRY
Answers
Answer:
10 km/hr
............
The speed of a bicycle is 10 km/hour or 0.27 m/sec.
What is the Speed?The speed may be defined as the rate of change of position of an object in any direction. It is significantly measured as the ratio of distance to the time in which the distance was covered. Speed is a type of scalar quantity that has only direction but no magnitude.
According to the question, the distance traveled by bicycle = 20 km or 2000 meters.
The total time is taken = 2 hours or 7200 seconds.
Now, the formula for calculating the speed is as follows:
S = Distance/ Time = 20km/2 hours = 10 km/hour.
S = Distance/ Time = 2000 meters/7200 seconds = 0.277 m/sec.
Therefore, the speed of a bicycle is 10 km/hour or 0.27 m/sec.
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According to Newton’s third law of motion, when a hammer strikes and exerts force on a nail, the nail
(a) creates a friction with the hammer.
(b) disappears into the wood.
(c) exerts an equal force back on the hammer.
(d) moves at a constant speed.
Answers
Answer:
C
Explanation:
When a hammer strikes and exerts force on a nail, the nail exerts an equal force back on the hammer. Option C. This is further explained below.
What is Newton’s third law of motion?Generally, According to Newton's third law, when two bodies contact, they apply forces to each other that are equal in magnitude and opposing in direction.
In conclusion, Newton’s third law of motion certifies that the nail exerts an equal force back on the hammer.
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How many moles are in 2.43 x 1024 particles of Carbon Monoxide (CO)?
a.0.25 moles
b.4.04 moles
c.1.46 moles
d.2.53 moles
Answers
(2.43*10^24)*1/(6.022*10^23)
What is the name of an element that has a full octet?
Answers
Answer:
noble gases
The noble gases rarely form compounds. They have the most stable configuration (full octet, no charge), so they have no reason to react and change their configuration. All other elements attempt to gain, lose, or share electrons to achieve a noble gas configuration
Explanation:
PLEASE MARK ME AS BRAINLIEST
I pushed a 2 kg car with an 8 N force. Calculate the acceleration.
Answers
Answer:
4 m/s²Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
[tex]a = \frac{f}{m} \\ [/tex]
f is the force
m is the mass
From the question we have
[tex]a = \frac{8}{2} \\ [/tex]
We have the final answer as
4 m/s²Hope this helps you