Chemistry

SEP Construct Explainations: Explain how a substance's flammability can indicate a chemical change.
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Which of the following is not an ingredient for photosynthesis?A. Oxygen B. Carbon dioxide C. Light energy D. Vinegar
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Will Mark Branliest!How many grams are in 4.1 mole sample of CO?
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Isomers are molecules that have the SAME molecular formula, but their atoms are bonded in a different way. Draw the 5 isomers of cyclopentane, C5H10 using Line Structural Diagrams only.
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Name the following compounds:a. NaBrb. MgCl2C. Lild. Caoe. CuBr2f. FeoWHOEVER ANSWERS FIRST WILL BE BRAINLIEST AND WILL GET 5 STARS
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Oxygen gas is at temperature of 40c when it occupies a volume of 2.3 liters. To what temperature should it be raised to occupy a volume of 6.5 liters?
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Solutions which can conduct electricity must contain:atoms minerals moleculesions
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A student borrows $10,000 from a bank but ends up paying $13,000 on theloan over the next five years. How much interest did the student pay?
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Which of the following is used for purification of water? a) Sodium bicarbonate b) Alum c) Copper sulphate d) Sodium Hydroxide
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Consider the substances quartz (SiOs), gold (Au), and nitrogen gas (N2). If possible, use the termsmolecule and compound to describe each substance. If one or more of the substances cannot bedescribed by the terms molecule and compound, explain why not.
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Help answer these chemistry questions
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A 0.1 M NaCl solution and a 0.2 M glucose solution are separated by a membrane that is impermeable to these solutes but is permeable to water. What will happen
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Find the density of an 8 gram rock if the water in a graduated cylinder rises from 25.0 mL to29.0 mL when the rock is placed in to the graduated cylinder.
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one of the biggest dangers of storms that produce heavy rains or storm surges is ___.A. Low Temperatures B. Flooding
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1. Explain the difference between genetic, environmental, social, and pathogenic factors. 2. How do pathogens spread? 3. How can we, as humans, prevent transmission of pathogens?4. List three ways the environment can affect personal health.
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how many sightings of fish in spongebob were there, person who gets it right will get brainliest on god on everything
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Which one item of the list below does not describe part of beta decay?A. The nucleus of the atom is unstable.B. A neutron turns into a proton.C. A proton turns into an electron.D. An electron is ejected from the nucleus.
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Sodium chloride reacts with copper sulfate to produce sodium sulfate and copper chloride.2NaCl(aq) + CuSO4(aq) Na2SO4(aq) + CuCl2(s)+This equation represents aO synthesis reaction.O decomposition reaction.O single replacement reaction.O double replacement reaction.O
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Which of the following is an example of genetic engineering?1.The sweetest honeydew melons are selected and the seeds extracted and planted for next years crop.2.The strongest animals in a population survive and reproduce.3.An exact replica of a frog is created from a body cell.4.A gene is introduced into salmon to make them grow twice as fast.
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help me please i dont understand
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Two samples of carbon come into contact. A heat transfer will occur between sample A and sample B. What must be true for heat to transfer from sample A to sample B
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What is the shape of SiH2O
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New research shows that a red food colouring with an R value of 0.62 (when a particular solvent and temperature are used) could be dangerous to certain people. Samples of food colouring from two different red sweets were collected and the chromatogram bolow was produced. For each of the sweets, state and explain whether or not you would recommend that the sweets are taken off the market based on this research,
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Not every earthquake has a(n) ______, but every earthquake has _____that occur in _____ the mainshock.1. Aftershock Foreshock
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