Answer:
false
Explanation:
There are a equal number of protons and electrons in neutral atoms.
Which would be an example of a homogeneous mixture?
Question 10 options:
Sprite
marinara sauce
air
ranch dressing
Answer:
Air
Explanation:
Air is an homogeneous mixture because it contain gaseous samples that have the same proportion throughout it's given sample. Air is a mixture of gaseous substances of 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, 1% of water vapor and small amounts of other gases in same proportion.
1.54x10-1 L / 2.36x 10-45 solve this in scientific notation
Answer:
Fish is the best time to go
Explanation:
Chicken nuggets and a salad and some onion rings and a new charger
kate and williams wedding cost about 21,000,000 english pounds how much is this in american dollars if
Answer:
2$
Explanation:
bru
Which molecule is sometime referred to as “the recipe book for how to make a protein"?
Answer:
RNA molecules
Explanation:
RNA molecules carry the instructions that are necessary to create proteins
Answer:
RNA molecules
Explanation:
RNA molecules carry the instructions that are necessary to create proteins
Are all physical reactions reversible?
Which term describes a mixture that is not uniform throughout?
1. chemically bonded
2. heterogeneous
3. homogeneous
4. solution
Boron (B) has two Isotopes, boron-10 and boron-11. The atomic weight of boron is the
A. combined masses of boron-10 and boron-11
B. average number of neutrons in boron-10 and boron-11
C. weighted average of the masses of boron-10 and boron-11
D. mass of boron-10 minus the mass of boron-11
Answer:
C. is the correct answer
Explanation:
I just completed this question and got it correct.
What is the name of the ionic compound LigPO,?
lanthanum phosphide
lanthanum phosphide
lithium phosphate
lanthanum phosphate
lithium phosphate hope this helps
The sum of two integers is -4. Can the two integers both be positive?
Answer: No.
Explanation: A negative integer can only be made with 2 negative integers or 1 positive and 1 negative integer.
how do I explain chromotography without memorizing
this is what i usually do -
watch videos based on the topic and take notesread articles based on the topic watch documentaries based on the topicthis is what works best for me it may work different for you but using these methods i'm able to do well on tests without really memorizing much
hope that helps :)
Answer:
its good
Explanation:
it's great vsvhebejehsdhdbehhebehdbeh
Greg ran for 25 minutes at a speed of 5 km/m. Find the distance.
Here it is⬆️ Distance is 125 km
Tertiary or top consumers are animals at the top of the food web. They may feed off either primary or secondary consumers. What animals would fit into this classification?
Answer:
Coyotes, Bald Eagles, & Gray wolf.
Electrons are in regions around the nucleus called energy levels. The first
energy level
Answer:
can only accommodate 2 electrons
Matter and energy are
OA) similar to work and distance.
OB) interconvertible.
O C) not related to each other.
O D) similar to mass and weight.
Why was cowpox not deadly as smallpox?
ANYONE WHO ANSWERS THIS GETS BRAINLIEST ANSWER
Which element has an atomic mass of 106.42?
Answer:
carbon
Explanation:
The element which has atomic mass of 106.42 is carbon as per the existing isotopes.
What is an element?
It is defined as a substance which cannot be broken down further into any other substance. Each element is made up of its own type of atom. Due to this reason all elements are different from one another.
Elements can be classified as metals and non-metals. Metals are shiny and conduct electricity and are all solids at room temperature except mercury. Non-metals do not conduct electricity and are mostly gases at room temperature except carbon and sulfur.
The number of protons in the nucleus is the defining property of an element and is related to the atomic number.All atoms with same atomic number are atoms of same element.
Learn more about element,here:
https://brainly.com/question/13025901
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How do you convert 8.5600x[tex]10^{2}[/tex] from scientific notation to standard notation?
Answer:
856.00
Explanation:
just move the decimal two places to the right :)
how many valence electrons are in the element gallium? explain how you determined the number.
Gallium has three valence electrons.
Elements in the periodic table are classified into groups and periods. Elements in a given group have the same number of valence electrons on their outermost shell while the elements in a period have the same number of shells.
All the elements in group 13 have three electrons in their outermost shell. Gallium is an element of group 13. This means that gallium also has three electrons in its outermost shell(valence electrons).
Learn more: https://brainly.com/question/2673886
Gallium has 3 valence electrons (1 electron in the 4p orbital and 2 electrons in the 4s orbital) because the valence electrons are those located in the outermost energy level of an atom.
Gallium has an atomic number of 31, which means it has 31 electrons in total. The electron configuration of gallium can be represented as [Ar] 3d¹⁰ 4s² 4p¹.
Within the n=4 shell, gallium has electrons in the 4s and 4p orbitals. The 4s orbital can hold a maximum of 2 electrons, while the 4p orbital can hold a maximum of 6 electrons. In the case of gallium, there is 1 electron in the 4p orbital.
To learn more about the valence electrons, follow the link:
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Forming a hypothesis is accomplished through___ reasoning
8. In
studies, scientists do not interfere with what is going on.
Answer:
Observational
Explanation:
This is the answer because researchers or scientist observe the effect of a diagnostic test, treatment or other intervention without trying to change anything.
Isotopes of an element have 2 things that change. What are they?
Answer:
.
Explanation:
Isotopes are different in neutrons and mass number.
Approximately how tall is Baker Hill? Don't forget your unit
Answer:
the elevation is 1,539
Explanation:
Mick has a glass of water. Which of the following tools could he use to measure the volume of water he has in the glass? A. a spring scale B. a triple beam balance C. a metric ruler D. a graduated cylinder
Answer:
D
Explanation:
Study Island
Answer:
D. a graduated cylinder is the correct answer
Explanation:
please help me with answering this question :( asap!!
Answer:
32. CnH2n+2
33. Ester
34. Water and corbondioxide.
35. dibromoethane
Read the time line. A timeline. The timeline lists the following years: 100 B C E, 1 C E, 100 C E, 200 C E, 300 C E, 400 C E, 500 C E. What time intervals are used on the time line? one year one hundred years five hundred years one thousand years
100 years
There's 100 years in between each listed year.
Answer:
A 100
Explanation:
which shows as evidence for a scientific claim. A- surveys of public opinion B- company advertisments C-controlled experiments D- personal websites
Answer:
A
You do not know if the advertisement is lying to you. Controlled experiments will be biased and personal websites will say what they think, not following the data & science.
The density of liquid mercury is 13.6 g/mL. What is the mass of a 175 mL sample of mercury?
Answer:
The answer is
2380 gExplanation:
The mass of a substance when given the density and volume can be found by using the formula
mass = Density × volumeFrom the question
density of mercury = 13.6 g/mL
volume = 175 mL
The mass of the metal is
mass = 13.6 × 175
We have the final answer as
2380 gHope this helps you
Testing a hypothesis is
Answer:
State the hypotheses. Every hypothesis test requires the analyst to state a null hypothesis and an alternative hypothesis. Formulate an analysis plan. The analysis plan describes how to use sample data to accept or reject the null hypothesis. Analyze sample data. Interpret the results.
Explanation:
Answer:
Your hypothesis is what your guess is for an answer and testing would be to test your hypothesis to see if its right
Explanation:
If you had zinc and copper and melted it down into uranium what would happen? I will mark brainliest
Answer: Major radioactive elements (such as uranium) break down and create lead as one of ... Exposure to even small amounts of lead can be harmful since lead has no use in the body. ... of all industrial metals in the world because lead is easily re-melted and refined. ... Other metals that are found with zinc are silver and copper.
Explanation:
Two objects are moving in a straight line. One object has a faster speed than the other. They both have constant speeds (speed is not changing). Is either object accelerating?
Answer:
No
Explanation:
Acceleration refers to the increase in speed over time. Since both of the objects are moving at a constant speed (so the speed is not changing) neither are accelerating, because acceleration requires a positive change in speed.
They may be moving at different speeds, one faster than the other, but neither are changing their own speed so neither are accelerating.
Hope this helped!