Chemistry Middle School

Which of these substances is the most acidic?
A.
grapes
B.
baking soda
C.
stomach juice
D.
ammonia

Answers

Answer 1

I think it’s either B or D

Answer 2

I think it is C because stomach breaks stuff down fast

Related Questions

help pls i will give brainlest

Answers

Answer: its 5ft tall and 12 inches

Explanation:

The answer is 5 foot 12 inches

help please help help

Answers

Answer:

for question 8 the answer is a waste material

Answer:

1) Photosynthesis takes place in plants leaves.

2) Air containing carbon dioxide moves into plants leaves through tiny openings in the leaves.

3) Soil contains the water a plant needs for making food

Explanation:

Which of the following is NOT a characteristic that all living things share? *
using energy
made of cells
able to talk
reproduce
Other:

Answers

the answer is able to talk

Answer:

C- "able to talk"

Explanation:

Not all living things cant talk, but they all use energy, are made of cells and can reproduce.

Someone please help me if right I’ll give you 5$

Answers

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 answer above is correct just pass it

What do we call the principal SI units that are used to derive all other SI units? derived units derived units base units base units lowest units lowest units fundamental units

Answers

Answer:

the answer is derived physical measurements

The answer is derived physical measurements.?,

The corn crop in an area is prone to infestation by larvae from moths that feed on the cornstalks and ears of corn. The techniques used by two farmers to protect the corn crop are described below.

Technique A: Sprayed his corn crop with an insecticide. The insecticide is known to kill all honeybee, butterfly, and moth larvae.
Technique B: Used a genetically modified variety of corn. The plant produces an insecticide which selectively kills only the moth larvae as it feeds on the corn.

Which technique is likely to have less of an impact on the environment?

Technique B because it may help humans who consume corn to fight bacteria
Technique A because it kills a broader variety of insects to protect the corn
Technique B because it preserves the harmless insects and targets only the moth larvae
Technique A because insecticide use is better for preserving the environment.

Answers

Answer:

Its C

Explanation:

Method A puts a type of spray that kills bees plus butterfly's which would make their population decrease. Which isnt helpful and harms the enviroment a lot. Answer A dosent make sense it may be harmful

Answer: c

Explanation:

I took the quiz

Plz Help me with this ?

Answers

Answer:

Hey there!

This is a convergent boundary. Here, a oceanic crust collides with a continental crust.

Hope this helps :)

Answer: This is a convergent boundary. Here, a oceanic crust collides with a continental crust <3 have a nice day

What are Wedges used for? Science. Thank you! <3

Answers

A wedge is a triangular shaped tool, a portable inclined plane, and one of the six simple machines. It can be used to separate two objects or portions of an object, lift up an object, or hold an object in place. It functions by converting a force applied to its blunt end into forces perpendicular (normal) to its inclined surfaces.

Answer:

A wedge is basically a simple machine that consists of two inclined planes, back-to-back. For a wedge, the effort (force) is applied to the vertical (height) of the wedge.

Some examples are knives, axes, chisels, wedges etc.

Their usage is simply for splitting wood, lifting something, cutting etc.

Hope this helps!

are you made out of copper and tellurium?

Answers

Answer:

i think i'm made of mud and dirt.

Explanation:

Which can change the solubility of a solid in a liquid?

stirring the solute

increasing the pressure of the solution

increasing the temperature of the solution

crushing the solute

Answers

Increasing the pressure of the solution

It will be, “Increasing the temperature of the solution.” Because that Solids turn into liquid by melting and Increasing the temperature means to give it heat. Eventually it will melt.
Hope it helps :)

Which of the following is true about gravity?

Select all that apply.

Answers

Answer:

its always attractive

Explanation:

pls follow me

Hi I think the answer is b. I don’t really know because I’m in 6 grade but this is my best guess

How to work out the relative mass of potassium? What is the calculation? ( explained very easily )

Answers

Answer:

Explanation:

Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.

Relative Atomic Mass = Mass of one atom
———————————
(1/12)th Mass of one C12 atom

In the Earth's mantle, hot magma near the core rises up and heats up the magma near the crust. How does the heat transfer from bottom of the mantle to the top?

Conduction

Convection

Radiation

None of the above

Answers

Answer:

Its C. Convection

Explanation:

i did the quiz

The answer would be convection

What does it mean when a material can reflect light?

Answers

Answer:

Reflection is when light bounces off an object. If the surface is smooth and shiny, like glass, water or polished metal, the light will reflect at the same angle as it hit the surface. This is called specular reflection. Light reflects from a smooth surface at the same angle as it hits the

Explanation:

pls follow me if this truely helped u

Reflection is when light bounces off an object.if the surface is smooth and shiny ,like glass water or polished metal the light reflect at the same surface at the same angel it hits the surface

Compare the human and the Amoeba together, here are the questions you'll be answering.

How does the
organism move?

How does the
organism breathe?

How does the
organism eat?

How many cells are in
the organism?

Neat fact (one) about
your organism.

Neat fact (two) about
your organism.

Neat fact (three) about
your organism

Answers

Answer:

1.They can move in a variety of ways, including walking, running, jumping, crawling, climbing, swimming, gliding, and flying.

2.Can breathe thanks to our respiratory system and lungs.

3.All animals eat other living things to obtain food. Carnivores consume other animals, whilst herbivores consume vegetation. As omnivores, or animals that consume both plants and other animals, humans are. Feeding on decomposing plants and animals are decomposers like fungus and earthworms.

4.36,2 trillion cell units. Although not the final figure, this is a pretty strong beginning.

1. They use energy from respiration to move
2. They breathe through the lungs with the help from the contraction and expansion of the intercostal muscles
3. They use their teeth to eat
4. There are trillion cells

Fish are invertebrates, and all animals are equal so does this mean that each individual animal is equivalent?
A. no
B.yes
C.kinda.
D.none of the above

Answers

Answer:no

Explanation:

because there are different bone structures to different animals

ex.mammals aren't invertabres

Answer:

A. no

Explanation:

The other person is right.

What is an ellipse please help)

Answers

normal oval shape traced by a point moving in a plane so that the sum of the distance from the other points is constant.

In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. As such, it generalizes a circle, which is the special type of ellipse in which the two focal points are the same.

Maybe they might use that math thing for Science.

7. What are convection currents in the mantle caused by?
A. The core heats up magma and increases its density, so it rises.
B. The core heats up magma and decreases its density, so it rises.
C. The core cools down magma and increases its density, so it rises.
D. The core cools down magma and decreases its density, so it rises

Answers

Answer: b

Explanation:

Heat from the core and the mantle itself causes convection currents in the mantle. It’s getting hotter. When something gets hotter, it is less dense.

When the speed of the bottle is 2 m/s, the KE is kg m2/s2. When the speed of the bottle is 3 m/s, the KE is kg m2/s2. When the speed of the bottle is 4 m/s, the KE is kg m2/s2. When the speed of the bottle is 5 m/s, the KE is kg m2/s2. When the speed of the bottle is 6 m/s, the KE is kg m2/s2.
instructions
In this part of the experiment, you will be changing the speed of the bottle by dropping it from different heights. You will use the same mass, 0.250 kg, for each trial, so record this mass in Table B for each velocity. Then, calculate the expected kinetic energy (KE) at each velocity. Use the formula KE = mv2,
where m is the mass and v is the speed. Record your calculations in Table B of your Student Guide.

Answers

Answer:

Based on the given instructions, you need to calculate the expected kinetic energy (KE) at each velocity using the formula KE = mv^2, where m is the mass and v is the speed. The mass is given as 0.250 kg.

Table B: Calculation of Kinetic Energy (KE)

Speed (m/s)Mass (kg)KE (kg m^2/s^2)20.2500.50030.2500.75040.2501.00050.2501.25060.2501.500

To calculate the kinetic energy at each velocity, multiply the mass (0.250 kg) by the square of the velocity.

For example, when the speed of the bottle is 2 m/s: KE = (0.250 kg) * (2 m/s)^2 = 0.250 kg * 4 m^2/s^2 = 1.000 kg m^2/s^2

Perform similar calculations for the other velocities and record the results in Table B.

Answer:

Explanation:mass of the bottle in each case is M = 0.250 kg

now as per given speeds we can use the formula of kinetic energy to find it

1) when speed is 2 m/s