Answer:
Br^-1
Explanation:
It is an ion that gained an extra electron making it 36 electrons but the other. one is in the neutral state with 35 electrons
How do reactants and products participate in a chemical reaction?
A. One reactant and one product react to form a new reactant and a new product.
B. The reactants are compounds that react to form new compounds (the products).
C. The products react with each other to form new compounds (the reactants).
D. A product is broken down in a chemical reaction to form reactants.
Answer:
B. The reactants are compounds that react to form new compounds (the products).
Explanation:
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Is SO2 a ionic bond?
Answer:
Explanation:
So ,SO2 molecules are covalent. ... Covalent is two non-metals sharing electrons while Ionic is a metal and a nonmetal where one takes an electron and changes both of the elements charges for example Nitrogen and Oxygen would be covalent while Iron and Oxygen would be Ionic. So ,SO2 molecules are covalent.
Explain all of the conversations of kinetic and potential energy from point A to D.
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Matter can be measured in many ways for specific purposes. Which measurement depends on the force of gravity and is not a reliable measurement?
A. Mass
B. Weight
C. Volume
D. Temperature
Answer:
A. Mass
Explanation:
Mass because ,mass is not a reliable measurement unlike the other ones.
why does water have such a high melting point?
In paragraph 2, attraction and repulsion refer to _____.
A electric and magnetic fields
B atomic theories
C tiny particles
D solid atoms
Answer:
I guess the answer is b.atomic theories
The molar mass of an element is numerically equal to:.
Answer:
the molar mass of an element is numerically equal to atomic mass in grams-
In the extraction of iron, carbon monoxide acts as O A catalyst OB an inert gas . an oxidising agent . a reducing agent .
Answer:
a reducing agent .
Explanation:
In the extraction of iron, carbon monoxide acts as the main reducing agent.
Carbon monoxide is a neutral, colorless and odorless gas. One of the property of carbon monoxide is that it is a powerful reducing agent as it combines with oxygen readily to form CO₂ and hence its use in metallurgy.
A reducing agent is one that undergoes oxidation in a chemical process. The carbon monoxide is produced in the furnace at high temperature. Carbon dioxide combines with carbon to produce carbon monoxide.So, carbon monoxide acts as the main reducing agent.
8.5C (H)
5. An element in the Periodic Table has
three orbitals in its electron cloud and
two electrons in the outer orbital.
What element is this?
A Boron
B Calcium
C Lithium
D Magnesium
Answer:
Boron.
Explanation:
Can someone help me with 14-16 fill in the blank
What is the vertex of the parabola in the graph?
1
19
6
4
2
X
-6
-2
-2
-4
Answer:
(-3, -4)
Explanation:
The vertex is the point/dot that is in the middle of the graph. Imagine a vertical invisible line splitting the U in half, equal parts.
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A train travels 200 miles at an average speed of 50 miles per hour. How long does it take the train to travel this distance?
Answer:
The answer is 100 m/p/h because you divide the total 200 miles and the 50 speed and you get about 100 m/p/h
Explanation:
how many molecules of nitrogen dioxide are there in 2.00 moles of nitrogen dioxide ? Show steps please!
Answer:
2 moles of NO₂ contain 12.044 × 10²³ molecules of NO₂
Explanation:
Given data:
Number of moles of NO₂ = 2.00 mol
Number of molecules of NO₂ = ?
Solution:
It will be solve through Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance. The number 6.022 × 10²³ is called Avogadro number.
1 mole = 6.022 × 10²³ molecules
2.00 mole NO₂ × 6.022 × 10²³ molecules of NO₂ / 1 mol of NO₂
12.044 × 10²³ molecules of NO₂
Thus, 2 moles of NO₂ contain 12.044 × 10²³ molecules of NO₂ .
Choose the answer that best describes how Mount Everest and Death Valley differ. Mount Everest is flat, and Death Valley is the highest point on Earth. Mount Everest is the highest point on Earth, and Death Valley is a smaller mountain. Mount Everest is the highest point on Earth, and Death Valley is relatively flat.
Answer:
Mount Everest is the highest point on Earth, and Death Valley is relatively flat.
Explanation:
Death Valley is a desert valley in Eastern California, in the northern Mojave Desert, bordering the Great Basin Desert. It is one of the hottest places on Earth, along with deserts in the Middle East and the Sahara, Mount Everest is Earth's highest mountain above sea level, located in the Mahalangur Himal sub-range of the Himalayas. The China–Nepal border runs across its summit point.
Answer:
Last one
Explanation:
How do invertebrates affect the oxygen levels of compost and soil?.
Invertebrates affect the oxygen levels of compost and soil by reducing it.
How respiration works?Cellular respiration is the process by which living organisms obtain energy by breaking down food molecules in their cells.
Every living organism undergoes the process of cellular respiration and make use of oxygen molecules in the process.
This means that invertebrates will make use of the oxygen gas present in compost and the soil for respiration, hereby reducing it.
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Answer: Burrows create spaces for oxygen to flow through the soil.
Explanation:
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19. Which of the following is NOT a function of proteins?
a. provides structural support for cells
b. long term energy storage
c. speeds up reactions
d. movement and transportation
Why does dry ice scream when pushed onto metal?
Answer:
i thought you said dry ice cream
true or false Cyclic electron transport is different from noncyclic electron transport in that cyclic electron transport produces NADPH
Answer:
true im sorry if im wrong
Explanation:
Why are bacterial DNA gyrase and topoisomerase good targets for antimicrobial drugs?
These enzymes are responsible for host cell recognition, so targeting them would prevent the host cell from being infected.
These enzymes are involved in energy production, so targeting them would prevent the bacteria from obtaining necessary energy.
These enzymes are not necessary for DNA replication.
These enzymes are different from their eukaryotic counterparts, so the drugs targeting them should not affect the host..
Answer:
These enzymes are involved in energy production, so targeting them would prevent the bacteria from obtaining necessary energy.
Explanation:
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Which elements can be found in SiCl4?
O sulfur and chlorine
O silicon and chloride
sulfur and chloride
silicon and chlorine
Review the mass and size of an atom. A typical hydrogen atom, for example, has
a mass of 1.66 x 102 g. Imagine how big a number we would need to describe
Х
the number of atoms in a real-life sample of an element. Could we somehow
measure or handle a dozen or a ream of atoms?
Answer:
4moles of Fe reacts =2moles of Fe2O38moles of Fe reacts=x moles of Fe2O3cross multiply4★X=8★2X=16/4X=4Explanation:
4 moles of measure or handle a dozen or a ream of atoms.
What is Hydrogen atoms?An atom of the chemical element hydrogen is known as a hydrogen atom. The Coulomb force holds a single positively charged proton and a single negatively charged electron to the nucleus of the electrically neutral atom.
Isolated hydrogen atoms, often known as "atomic hydrogen," are highly uncommon in normal life on Earth. In contrast, a hydrogen atom usually joins forces with other atoms to form compounds or with another hydrogen atom to generate common (diatomic) hydrogen gas, H2.
In everyday English, the terms "atomic hydrogen" and "hydrogen atom" have similar but distinct meanings. A water molecule, for instance, has two hydrogen atoms but no atomic hydrogen (which would refer to isolated hydrogen atoms).
Therefore, 4 moles of measure or handle a dozen or a ream of atoms.
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chemical reactions amplify 1.1 pre assessment
Chemical reactions are the various types of permanent changes which occur in substances and which produce new substances .
What are chemical reactions?Chemical reactions are changes which occur in the arrangement of atoms in a substance resulting in the formation of new substances.
There are many types of chemical reactions such as:
combination reactionsdisplacement reactionsdecomposition reactionsoxidation reactionsdouble displacement reactionsThe various types of chemical reactions that occur contribute to the numerous compounds and substance in existence today.
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Which alcohol is used to manufacture formaldehyde? Write it’s names .
Answer:
Acetyldehyde
Explanation:
It's a functional group essential for making alcohol and other products
Methanol (CH₃OH) is used to manufacture formaldehyde.
What is formaldehyde?Formaldehyde can be described as a naturally occurring organic compound with the formula CH₂O and structure H-CHO. Pure Formaldehyde is a pungent, colorless gas that polymerizes spontaneously into paraformaldehyde. Formaldehyde is the simplest of aldehydes (R-CHO).
Formaldehyde is a colorless gas with a pungent, irritating odor. This gas is stable at about 150 °C but it can polymerize when condensed to a liquid.
Formaldehyde can be produced industrially by the oxidation of methanol. The common catalysts are iron(III) oxide, silver metal, iron-molybdenum oxides, or vanadium oxides.
2 CH₃OH + O₂ → 2 CH₂O + 2 H₂O
The silver-based catalyst works at a temperature of about 650 °C. Two chemical reactions on it produce formaldehyde simultaneously:
CH₃OH → CH₂O + H₂
In principle, formaldehyde can be generated by the oxidation of methane, but it is not industrially viable as methanol is more easily oxidized than methane.
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Just like the terrestrial inner planets, which are made of rock and metal, the gas planets have solid surfaces covering mantles and cores.
A. True
B. False
Answer:
B. False
Explanation:
The gas planets are called so because they are composed of gases and solid materials. Therefore, they cannot have solid surfaces covering mantle and core as they cannot exist.
The change in the free energy of a reaction(ΔG) is equal to
1. TΔH - ΔS
2. TΔH + ΔS
3. ΔH - TΔS
4. ΔH + TΔS
Answer:
The answer is Third one
what is chemicle reaction
Answer:
a process that involves rearrangement of the molecular or ionic structure of a substance as distinct from a change in physical form or a nuclear reaction
Explanation:
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how many grams of ice can be melted with 15 j of heat
Answer: A 15-gram ice cube absorbs 5000 j of heat as it melts
Explanation:
what is the percent composition of sulfur in FeSO4
Answer:
36.8%
Explanation:
Ferrous sulfate has the composition 36.8% Fe, 21.1% S and 42.1% O.
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ay tone, if dis molten material pourin from da trade towa is aluminum, den how come dey ain't silva nor like a watery liquid?
Answer:
can you please type english?Explanation:
Explain why as the temperature increases the solubility of solids (increases/decreases).
Answer:
The increased vibration (kinetic energy) of the solute molecules causes them to be less able to hold together, and thus they dissolve more readily.