All categories

2 years ago

Please help me I will give you the brain thing and extra points. image below part 3

Biology

2 answers:

marishachu [46]2 years ago

8 0

Answer:

A Chemical, gas produced

Explanation:

jeka942 years ago

6 0

Answer:

$\boxed {\boxed {\sf A. \ Chemical \ change-gas \ produced}}$

Explanation:

Baking soda (NaHCO₃) and acetic acid (C₂H₄O₂) in vinegar react.

They form water (H₂O), sodium acetate (NaC₂H₃O₂), and carbon dioxide (CO₂).

This must be a chemical change, because new products are formed. We can eliminate choices B and C, because they are physical changes. Physical changes don't require a chemical composition change.

So, we are left with choices A and D.

Choice D must be incorrect because mass cannot disappear. According to the Law of Conservation of Mass, mass can't be made or destroyed.

That leaves choice A. Combining baking soda and vinegar is a chemical change, because new products, like gas, are formed. The gas helps blow up the balloon.

You might be interested in

What is cytoplasm? good evening

Oksi-84 [34.3K]

according to nature . com

"Cytoplasm is a thick solution that fills each cell and is enclosed by the cell membrane. It is mainly composed of water, salts, and proteins. ... All of the organelles in eukaryotic cells, such as the nucleus, endoplasmic reticulum, and mitochondria, are located in the cytoplasm."

i like to refer to it as slime in the cell that gives it structure.

7 0

2 years ago

There are 3 main categories of environmental problems that have come about because of the population growth. What are they and e

kakasveta [241]

Answer:

i)declination of resources

ii) air, water and land pollution

iii) global warming

Explanation:

As we all know that population is increasing day by day, all the country of the world are facing rapid population growth.we are facing many problems, the population growth is increasing day by day, the more the population, the more resources we need due to this, the resources is decreasing day by day, we need more resources as there is more population, the increasing population makes more pollution due to this global warming is increasing. We know that there is no more more resources in our world if the resources is finished in this day the future generation will not be able to survive and will not be able to use such resources.we should prevent such resources for future generation also the future generation should get the chance to use such resources .the pollution is increasing day by day .we should control it .the main thing is that we should control the rapid population growth population growth should be controlled due to this global warming is increasing which is very dangerous leading to the declination of ozone layer due to which the harmful rays of sun may enter the earth which may cause various problems in us and cause various diseases due to which we may die.the main thing is that we should stop the population growth, we should conduct public awareness programmes and many more programmes to educate people. Population growth also creates deforestation as the number of people are increasing day by day they need more place to live ,they need more Land due to this they cut down the trees of forest and used to make houses there due to which deforestation takes place. we all know that deforestation is the process of cutting down trees. so the tree should not be cut down as it is the source of oxygen for all creatures living in this whole world and the main thing is that we should provide education to the children and the youth and many more. if we are educated we can stop such population growth. so the main thing is that we should stop population growth by giving education. Education is the only one way to stop such population growth.

5 0

2 years ago

one parent is homozygous cleft chin and the other is heterozygous. MAKE A PUNNET SQUARE to show the propability in their offspri

Mars2501 [29]

Answer:

50% AA and 50% Aa

Explanation:

Punnet square is a tool used to examine the offspring's genotype result of a breeding experiment. We will need to put the genotype of a parent in the row, and other parents at the column. The parent is homozygous(AA) and heterozygous(Aa), the square will be:

A A

A AA AA

Aa a Aa Aa

The result will be 50% AA and 50% Aa

3 0

2 years ago

Use the dietary reference intake charts for vitamins and minerals to find the recommended intake for these micronutrients for pe

Viktor [21]

Answer: I would meet my B12, calcium, and vitamin C needs, but I wouldn’t meet the recommendations for iron

Explanation: Its all about trustt my friends

8 0

3 years ago

Read 2 more answers

Which is not part of the cell theory?

OLEGan [10]

Answer:

A) All know living things are up of one or more cells

Explanation:

hope it helps you

have a great day:)

7 0

2 years ago